PLS ANSWER FAST 50 POINTS
Sasha did an experiment to study the solubility of two substances. She poured 100 mL of water at 20 °C into each of two beakers labeled A and B. She put 50 g of Substance A in the beaker labeled A and 50 g of Substance B in the beaker labeled B. The solution in both beakers was stirred for 1 minute. The amount of substance left undissolved in the beakers was weighed. The experiment was repeated for different temperatures of water and the observations were recorded as shown.


Experimental Observations
Substance Mass of Undissolved Substance at Different Temperatures (gram)
20 °C 40 °C 60 °C 80 °C
A 12 11 9 8
B 45 40 34 31


Part 1: Which substance has a higher solubility?
Part 2: Explain your answer for Part 1.

Answers

Answer 1

Answer: The solubility of B is high than the solubility of A.

Explanation:

The solubility is defined as the amount of substance dissolved in a given amount of solvent. More the solute gets dissolved, high will be the solubility and less the solute dissolved, low will be the solubility.

For the given observations:

Mass of undissolved substance of substance A is more than Substance B at every temperature. This implies that less amount of solute gets dissolved in the given amount of solvent.

Hence, substance B has high solubility than substance A


Related Questions

When solar radiation hits snow and ice, approximately 90% of it is reflected back out to space. As global warming
more snow and ice to melt each summer, the ocean and land that were underneath the ice are exposed at the Earth's
surface. Because they are darker in color, the ocean and land absorb more incoming solar radiation, and then release the
heat to the atmosphere. This causes more global warming. In this way, melting ice causes more warming and so more ice
melts. This is known as a feedback. According to a recent scientific study that used computer models to predict the
future of Arctic sea ice, there may be no more sea ice left in the Arctic Ocean during summer within the next few
decades.
If 1000 watts of energy per square meter hits an island covered in ice and snow, how much of it is reflected back into
space?
How would the amount of energy reflected back into space differ if all of that ice melted?
DED

Answers

90% of the solar light that strikes snow and ice is reflected back into space. Each summer, more snow and ice melt due to global warming, exposing the land and ocean that were previously covered by the ice.

Does ice reflect sunlight back into space?Large amounts of sunlight are reflected off the dazzling surface of sea ice and, more significantly, back into space. Temperatures closer to the poles stay chilly in comparison to the equator because this solar energy "bounces back" and is not absorbed into the ocean.Each summer, more snow and ice melt due to global warming, exposing the land and ocean that were previously covered by the ice. The ocean and land absorb more solar energy because of their darker colors, and they then dissipate the heat into the atmosphere. The result is increased global warming. In this way, as the climate warms more, more ice melts.

To learn more about : Global warming

Ref :  https://brainly.com/question/3553382

#SPJ13

In DNA the complimentary base pairs are held together by which type of bonds?
O ionic bonds
O hydrogen bonds
O peptide bonds
O James Bond

Answers

Answer:

Hydrogen bonds

Explanation:

It is important to know that the bases

AT

CG

Are bonded by hydrogen.

Write a paragraph or two below to explain why there is little change in the pH of battery acid when it is diluted with water.

Also include in your answer...

• The water equilibrium expression.
• What could you add to the battery acid to significantly change the pH of the solution?

Answers

There is little change in the pH of battery acid when it is diluted with water because adding more water increases the pH of the solution towards 7 thereby making it less acidic.

What is pH?

This is referred to as the power of hydrogen and it is the measure of the acidity or alkalinity of a substance. pH of 7 is referred to as being neutral, pH of 1-6.9 is referred to as being acidic while the pH of 7.1 - 14 is referred to as being basic or alkaline.

The water equilibrium expression is Kw = [H₃O⁺][OH⁻].

Water can be added to the battery acid which results in its dilution thereby increasing the pH of the solution towards 7. The acid in most instances become more corrosive when observed.  This means that it becomes less acidic and is therefore the correct choice.

Read more about pH here https://brainly.com/question/22390063

#SPJ1

16. use a punnett square to predict the offspring in a cross between a tall pea plant (heterozygous) and a tall pea plant (heterozygous). what is the genotypic ratio of the offspring?

Answers

A punnet square to predict the offspring is made below and the genotypic ration will be 25% homozygous tall pea plants, 50% heterozygous tall tea plants, and 25% short pea plants.

Suppose that a tall pea plant has the heterozygous genes Tt hence a punnet square will be formed as follows:

          T                t

T      TT             Tt

t        Tt              tt

According to the punnet square, the genotypic ratio will be 25% homozygous tall pea plants, 50% heterozygous tall tea plants, and 25% short pea plants.

In the scenario above, we know that the dominant allele is the tall one (T) as the heterozygous plants tend to be tall. The effect of the recessive allele is masked by the dominant allele.

To learn more about Punnett square, click here:

https://brainly.com/question/3522181

#SPJ4

list three of the types of noncovalent interactions that are important in providing stability to the three-dimensional structures of macromolecules. (b) why is it important that these interactions be noncovalent, rather than covalent, bonds?

Answers

a) Noncovalent interactions include

hydrogen bonds van der Waals interactions hydrophobic interactions.

(b) Noncovalent interactions can develop, break, and re-form more quickly and with less energy input than covalent bonds because they are weaker. In order to keep macromolecules flexible, this is crucial.

In contrast to a covalent bond, a non-covalent contact involves more scattered types of electromagnetic interactions between molecules or inside a molecule and does not share electrons. Large molecules like proteins and nucleic acids have a three-dimensional structure that must be maintained by non-covalent interactions.

Additionally, they participate in a variety of biological processes in which big molecules briefly yet specifically bond to one another. The design of drugs, crystallinity, materials, notably those for self-assembly, and generally the synthesis of numerous organic molecules are all significantly influenced by these interactions. Large molecules like proteins and nucleic acids are joined by noncovalent bonds. Though weaker than covalent connections, noncovalent bonds are essential for biological processes including the creation of double helices.

To learn more about noncovalent interactions. Click, https://brainly.com/question/14602832

#SPJ4

the appearance of bryophytes and eventually large forests of lycophytes in the paleozoic era (from around 500 million years ago to 250 million years ago)...

Answers

The appearance of bryophytes and eventually large forests of lycophytes in the Paleozoic era (from around 500 million years ago to 250 million years ago): (3) changed the environment in such a way that it favored seed plants from that point forward.

Bryophytes is the division of the kingdom plantae that comprises of the non-vascular land plants. These plants however do not have true leaves, stem or roots. The example of bryophytes include liverwort, mosses hornwort, etc.

Seed plants are the type of plants that produce the seed. These are also called the phanerogams. Seed plants can be of following two types: Gymnosperms and Angiosperms.

The question is incomplete, the complete question is:

The appearance of bryophytes and eventually large forests of lycophytes in the Paleozoic era (from around 500 million years ago to 250 million years ago):

allowed for the evolution of the first aerobic animals.led to a period of global warming and more humid conditions.changed the environment in such a way that it favored seed plants from that point forward. was the first time that oxygen was produced by biological organisms and released in the environment.

To know more about seed plants, here

brainly.com/question/13941247

#SPJ1

All living things reproduce. What is the benefit of reproducing sexually?
A. Less energy spent
B. Takes less time
C. Genetic variation

Answers

C is the correct answer

Answer:

Genetic Variation

Plsss mark as Brainliest

In horses, black color (B) dominates chestnut color (b). The trotting gait (T) dominates the pacing gait (t). A cross is made between a horse homozygous for black color and the pacing gait, and a horse homozygous for chestnut color and the trotting gait. What is the probability that an offspring will be a black trotter? SHOW WORK FOR CREDIT!

First Horse’s Phenotype: ___________. Second Horse’s Phenotype: ___________
First Horse’s Genotype: ___________. Second Horse’s Genotype: ___________
Gamete: gamete:

Answers

Black B is dominant over chestnut color b and trotting gait T is dominant over pacing gait t. The answer is 100%. Since all offspring have at least one dominant black hair allele that overwhelms the brown hair allele, all offspring are expected to have black hair.

Phenotype refers to the physical color of a horse's coat or the way genes are expressed. Phenotype II FMF in Familial Mediterranean Fever is the onset of amyloidosis prior to the onset of his FMF with typical attacks or is an isolated finding in members of the FMF family.

White horses have pink skin. White fur mane tail, and hooves. and dark brown eyes. White is the dominant trait W at the white locus. White horse genotype must be heterozygous dominant We. Homozygous dominant because WW is more likely to cause early embryonic loss. Scientists conclude that horses were first domesticated 6,000 years ago in the western part of the Eurasian steppe, in what is now western Ukraine and Kazakhstan.

Learn more about Horse phenotype here:-https://brainly.com/question/26406162

#SPJ1

imagine that a toxin is introduced to the body and inhibits the establishment of the proton gradient in the intermembrane space. what would you predict would be the result?

Answers

Imagine that a toxin is introduced to the body and inhibits the establishment of the proton gradient in the intermembrane space as a result, ATP synthase would be unable to produce ATP. The correct answer is option(e).

The production of ATP by ATP synthase is dependent on the proton gradient in the intermembrane gap. As a result, the toxin will render it inert. In this situation, oxidative phosphorylation rather than substrate-level phosphorylation is now suppressed.

Pyruvate is a glycolysis byproduct that won't be harmed by a toxin. It is anticipated that the toxin will prevent NADH from being oxidized because it is crucial in creating a proton gradient. The proton gradient is created by the protons created during NADH to NAD+ conversion. NADH is unlikely to be oxidized if the gradient is missing.

To know more about proton gradient refer to: https://brainly.com/question/28046848

#SPJ4

The complete question is:

Imagine that a toxin is introduced to the body and inhibits the establishment of the proton gradient in the intermembrane space. What would you predict would be the result?

a. NADH would be oxidized

b. Fermentation could not occur

c. Substrate-level phosphorylation would be inhibited

d. Pyruvate would be unable to enter the Citric acid cycle

e. ATP synthase would be unable to produce ATP

Terms that mean many species die out at the same time

Answers

Mass extinctions is the terms that mean many species die out at the same time.

Extinction :

A species dying out or disappearing is referred to as extinction. Extinction occurs when a species becomes less numerous due to environmental factors (habitat fragmentation, climate change, natural disasters, overexploitation of species for human use).

Mass extinction :

The majority of species that have ever lived on Earth have gone extinct, but the fossil record reveals five particularly large extinctions, known as mass extinction events, that each resulted in the extinction of enormous numbers of species. The majority of extinctions, which happen continuously and are referred to as background extinctions, are distinguished from these glaring declines in diversity by the term "mass extinction."

To know more about species :

https://brainly.com/question/13259455

#SPJ10

The type of bone that has fully formed lamellae with regularly arranged collagen bundles and a higher percentage of inorganic matrix is classified as __________.

Answers

Answer:

Secondary bone

Explanation:

percentage of inorganic matrix is classified as Secondary bone.

A red blood cell with a low concentration of oxygen will..

A. Absorb more oxygen as it passes by the lungs
B. Pass by the lungs as if nothing happened
C. Diffuse oxygen out into the lungs​

Answers

A red blood cell with a low concentration of oxygen will absorb more oxygen as it passes by the lungs.

What is red blood cell?

Red blood cells are the most prevalent form of blood cell and the primary way by which vertebrates distribute oxygen to their body tissues through blood flow through the circulatory system. They are also known as red blood corpuscles, haematids, erythroid cells, or erythrocytes.

The kidneys detect an oxygen deficiency in the blood (hypoxia) and respond by secreting a hormone called erythropoietin when low oxygen levels are present (which may be caused by circumstances such as high altitude or low partial pressure of oxygen in the atmosphere) (EPO). The production of RBCs is accelerated by EPO, which increases the RBC count. The higher RBC count helps to make up for the lungs' reduced ability to hold oxygen.

Hence the correct option is a red blood cell with a low concentration of oxygen will absorb more oxygen as it passes by the lungs.

To learn more about red blood cell from the given link

https://brainly.com/question/291206

#SPJ9

How is the renin activated in the alimentary canal

Answers

Renin is released into your system when your blood pressure goes too low or your body does not have enough salt. Renin secretion occurs when your arterial arteries' baroreceptors (pressure-sensitive receptors) sense low blood pressure. Your kidneys detect low sodium (salt) levels.

What is the Alimentary Canal?

The alimentary canal is mostly known as the conduit via which food enters our bodies and exits through the anus after digestion.

Renin is important in maintaining blood pressure after volume depletion. The role of the renin-angiotensin system in regulating blood pressure levels in persons with normal salt consumption can be assessed with angiotensin-converting enzyme (ACE) inhibitors.

Learn more about Renin:
https://brainly.com/question/2005819
#SPJ1

what three elements do all macromolecules share?​

Answers

Carbon, oxygen, & hydrogen.

Answer:

carbon, oxygen and hydrogen, 

Explanation:

A person with AIDS may take longer than a healthy person to recover from a
Salmonella infection.
Explain why.


PLEASE I NEED IMMIDIATE HELP WITH IT!!

Answers

Answer:

a person with AIDS has a weakened immune system

explanation/answer: white blood cells cannot kill bacteria/salmonella (as effectively)

the probability of a person having one copy of the allele that causes this phenotype is 1%, or one in one hundred (1/100). is it more likely that this is a dominant pattern or a recessive pattern?

Answers

The probability of a person having one copy of the allele that causes this phenotype is 1%, or one in one hundred (1/100). is it more likely that this is a recessive pattern.

According to the most respected textbooks on genetics and evolution, an allele is a different arrangement of the same sequence of nucleotides at the same location on a lengthy DNA molecule A locus is the chromosomal or genomic location of a gene or any other genetic element, and alleles are different DNA sequences at a locus.

The collection of qualities or visible characteristics that may be observed in an organism is known as its phenotype. The phrase refers to an organism's morphology, physical shape and structure, developmental processes, biochemical and physiological characteristics, behavior, and the outcomes of behavior. Because it allows for distinct behavior toward previously unknown creatures, phenotype matching is crucial.

To know more about phenotype refer to: https://brainly.com/question/26124553

#SPJ4

What causes a supernova?
O force of a nebula
O force of a gravity
O energy of heat
O energy of a nebula

Answers

the answer is force of a gravity

how are polymers broken down?
what is the difference between RNA and DNA?

Answers

DNA and RNA counter in two ways (a) RNA incorporates the sugar ribose, whereas DNA includes the slightly additional sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA possesses the nucleobase uracil, whereas DNA controls thymine.

What exactly is in human DNA?Deoxyribonucleic acid is a polymer made up of two polynucleotide chains that coil around each other to form a double helix that contains genetic instructions for the development, functioning, growth, and reproduction of all known organisms and viruses. Nucleic acids have DNA and ribonucleic acid.DNA is made up of nucleotide molecules. Each nucleotide is made up of three parts: a phosphate group (one phosphorus atom bonded to four oxygen atoms), a sugar molecule, and a nitrogen base. DNA is composed of chemical building blocks known as nucleotides. These building blocks are composed of three components: a phosphate group, a sugar group, and one of four different types of nitrogen bases.

To learn more about DNA, refer to:

https://brainly.com/question/16099437

#SPJ4

Which statements best compare the function of an ATP molecule to a DNA molecule?
ATP carries and transmits the genetic information of organisms,
DNA serves as a biological catalyst that speeds up the rate of chemical reactions.
ATP provides energy for chemical reactions in the cell.
DNA carries and transmits the genetic information of organisms.
C
ATP serves as a biological catalyst that speeds up the rate of chemical reactions.
DNA acts as a structural sugar in the cell walls of plants.
D
ATP acts as a structural sugar in the cell walls of plants.
DNA provides energy for chemical reactions in the cell.

Answers

ATP provides energy for chemical reactions in the cell.

DNA carries and transmits genetic information of organisms.

What is the difference between B-cell lymphocytes and T-cell lymphocytes?

Answers

The difference between B-cell lymphocytes and T-cell lymphocytes is that B-cells originate from the bone marrow while the T-cells originate from the thymus.

What are lymphocytes?

Lymphocytes are type of white blood cell with a spherical nucleus occurring in the lymphatic system. This include the following types of cells;

B cellsT cellsnatural killer cells

B-cells are lymphocytes developed in the bursa of birds and the bone marrow of other animals, that produces antibodies and is co-responsible for the immune system.

On the other hand, T-cells are lymphocytes from the thymus, that can recognise specific antigens and can activate or deactivate other immune cells.

Hence, it can be said that one of the differences between T and B cells of lymphocytes is their origin.

Learn more about lymphocytes at: https://brainly.com/question/1271207

#SPJ1

binary fission is the most common form of reproduction in

fungi
protozoa
animals
plants

Answers

Answer:

protozoa

Explanation:

Binary fission is a kind of asexual reproduction. It is the most common form of reproduction in prokaryotes and occurs in some single-celled eukaryotes.

You are asked to perform a fermentation test with your unknown bacteria, using a technique known as stab culturing. What can you conclude if the test came back purple?.

Answers

You are asked to perform a fermentation test with your unknown bacteria, using a technique known as stab culturing. If the test came back purple the conclusion will be the culture is basic and your unknown bacteria cannot metabolize arabinose.

Fermentation is specifically described in biochemistry as the process of obtaining energy from carbohydrates without the presence of oxygen. There are a lot of different kinds of fermentation, but the three most common ones used in food preparation are lactic acid, ethanol, and acetic acid.

Stab cultures are made of solid agar in a test tube and are comparable to agar plates. By inserting a pipette tip or an inoculation needle into the center of the agar, bacteria are introduced. The pierced area is where bacteria flourish. The most typical method for shipping or short-term storing cultures is stab culturing.

To know more about fermentation refer to: https://brainly.com/question/13050729

#SPJ4

A All of the following are examples of hormones EXCEPT: A. insulin B. dopamine C. testosterone D. estrogen E. glucagon​

Answers

Answer:

B. Dopamine is not a hormone.

Explanation:

Insulintestosterone estrogen glucagon

ARE all hormones but not that dopa thing.

HOPE this HELPED

THINK Copy
4. Apply Study the oxygen
atom illustrated below.
Is the second energy level
of the oxygen atom full?

Answers

The second energy level of the oxygen atom full No it isn’t because the atomic number of oxygen is 8.

What is energy level and example?

Energy levels I and II, for instance, can each hold a maximum of two and eight electrons, respectively. The greatest number depends on how many orbitals are present at a certain energy level. A region of space within an atom known as an orbital is where an electrons is most likely to find.

Briefing:

Electronic configuration-

2,6 (=8)

In the second shell, a total of 8 electrons can be allowed. There are two empty spots.

Hence it is not full.

(And the valency therefore is 2).

To know more about Energy level visit:

https://brainly.com/question/17396431

#SPJ9

In a human population, the population momentum effect is most likely to occur in cases in which a large percent of people in the population are in which age-group?.

Answers

Answer:

62s? Osvaldo

Explanation:

Osvaldo woods Osvaldo C300 allows crew gutsydurex

where are the instructions that tell the cell everything it needs to survive?​

Answers

Answer:

In the DNA.

Explanation:

DNA contains the instructions needed for an organism to develop, survive and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies

HOPE IT'S HELPS YOU

What polysaccharides can be found in the cell wall of a plant cell?

Answers

Cell walls are made up of many different polysaccharides, which can be grouped into three main categories: Cellulose, Pectins and Hemicellulose.
Cellulose is the primary polysaccharide used for the structure of the cell wall and is most commonly referred to when talking about this subject.

Answer:

Cell walls are composed primarily of multiple polysaccharides that can be grouped into three major classes: cellulose, pectins, and hemicelluloses

How are fungi and bacteria different?
A. Bacteria are eukaryotes and fungi are prokaryotes.

B.Bacteria contain a cell wall and fungi do not.

C. Bacteria reproduce sexually and fungi only reproduces asexually.

D. Bacteria are prokaryotes and fungi are eukaryotes.

Answers

Answer:

D. Bacteria are prokaryotes and fungi are eukaryotes.

Description and observations of star gazing

Answers

Stars are the  main source of electromagnetic radiation in the universe allowing for studies of many phenomena

Explanation and study of star gazing?

A galaxy is a gravitationally bound collection of billions of stars, most of which will have their own Solar system. Their varied star shapes and sizes, along with the different angles we see from Earth, make finding them and observing through a telescope a joy! The best way to start stars exploring the night sky is with the unaided eye. Our star wheels are easy to use, and in no time you'll learn the constellations and namesA Vital Resource for Learning the Night Sky. Our array Basics stars webinar provides framework information about the vital winter constellations. Stars are the main source of electromagnetic radiation in the universe let for studies of many phenomena

we can conclude that we examined how eye gaze directed toward another face affect face preferences stars in infants. A total of 19 children were observed.

Learn more about it stars here:  https://brainly.com/question/25821071

#SPJ1

When the equation for photosynthesis is reversed, it represents a chemical reaction that produces ATP in organisms. This is called what?


When the equation for photosynthesis is reversed, it represents a chemical reaction that produces ATP in organisms. This is called what?


Dentrification


Metabolizing


Photosynthesis


Respiration

Answers

The chemical reaction represented by the reversion of equation of photosynthesis is: Respiration.

Photosynthesis is the process of synthesizing one's own food using the inorganic raw material. This process is observed in plants and some algae. The main organelle involved in photosynthesis is chloroplast. Photosynthesis utilizes carbon dioxide. The end product of photosynthesis is glucose.

Respiration is the reverse of photosynthesis. It is the breakdown of glucose to release energy. This energy is utilized by the body to perform several processes. Besides energy, respiration also maintains the carbon balance of the plant cells. Respiration releases carbon dioxide during the process.

To know more about respiration, here

brainly.com/question/1757345

#SPJ1

Other Questions
Ways the south got around the abolition of slavery At a fixed temperature and pressure, the volume occupied by a gas is _____ proportional to the number of moles of gas present. For ideal gases under these conditions, equal _____ of gas contain equal numbers of particles or moles. Find one rhetorical appeal in Anthony's speech that is ineffective, and explain howthis appeal hurts her argument. When attractive forces between molecules are strong in a liquid, the liquid can be described as...a solidb.fluidC.viscousddefinite in shape Hey guys! please respond asap! thanx Given that x: y = 10:9 and x - y = 122, find the value of x + y. What are the transferable skills that can be developed through history education what is the main reason that the republican political party was formed Calculate the theoretical yield in grams AlI from the complete reaction of 113 grams I according to the following balanced chemical equation: 2 Al(s) + 3 I(s) 2 AlI(s) Charlie can run 4 miles in 28 minutes. If he runs at a constant pace, how long will it take him to run 3miles? How long will it take him to run 7 miles? How many feet of chain fence are necessary toenclose a dog pen that is square and has an area of144 square feet? How do I make a percent for a number that is not 100 Angela was instructed on a test to make an analogy, or comparison, for polymers. She writes four examples of how polymers are like pearl necklaces. She has many parts to this analogy that make sense, but one part of her analogy does not fit.Which is the most likely error in her analogy?The pearls are like monomers.The thread that connects the pearls is like an ionic bond.The entire necklace is like a polymer, or macromolecule.Stringing the beads onto the thread is like polymerization.ASAP Pleez help me im stuck "Discount on bond payable" is a(n) ____________________ account. Select the best answer for the question.7. Marsden Hartley's style of painting is best described asA. post-impressionist.B. surrealist.C. cubist.O D. abstract.O Mark for review (Will be highlighted on the review page "germany is not looking to prussia's liberalism, but to its power. . . . [i]t is not by speeches and majority resolutions that the great questions of the time are decided -- that was the big mistake of 1848 and 1849 -- but by iron and blood." DNA replication begins when the double helix untwists and breaks in half between the nitrogen bases. What are the next two steps in the process of DNA replication? Prior to the CARES Act, up to what percentage of your income could be deducted as a donation to charity?(1 point)O 60%O 80%O 70%O 100% Describe two technologies that have impacted the land what are the good parts about these technologies in the bad parts