Answer:
30grams
Explanation:
To calculate the mass (number of grams of the solute) in the solution, we need to calculate the number of moles it contains first. We use the formula;
M = n÷ V
Where; M= Molarity or Molar concentration = 2.055M
n= number of moles= ?
V= Volume = 250mL
Volume in L is 250/1000 = 0.250L
n= M × V
n= 2.055 × 0.250
n= 0.51375moles
The mass is calculated using :
Mole (n) = mass (m) / molar mass (MM)
Molar mass of NaCl = 23 + 35.5
= 58.5g/mol
Mass = molar mass × mole
Mass = 58.5 × 0.51375
Mass = 30.0543
Therefore, the mass is 30grams
2. Name two products that come from living things that are used to aid in human health and healing. Discuss where these products come from and what they do.
Answer: water and wart
Explanation: so we can live and walk
Martin has a very low tolerance for alcohol- two beers and he's falling down drunk. this is likely at least partly linked to a small amount of which organelle in his cells? a) smooth endoplasmic reticulum b) lysosomes c) mitochondria d) rough endoplasmic reticulum e) Golgi apparatus
Answer:
is it okk
Explanation:
The lysosomes are the cellular organelles containing the hydrolytic enzymes which help in the metabolism of the complex and toxic compounds. The alcohol which is consumed is degraded and digested by the lysosomes which decrease the rate of digestion of the other complexes like the proteins. This decreased lysosomal activity leads to liver damage.
here is your answer
Matter is reused in both the water cycle and the carbon cycle.
ANSWER:
this is true
what is the relationship between gens , cromosomes, and DNA
Answer:
Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. Genes are contained in chromosomes, which are in the cell nucleus.
Which organ system is responsible for coordination and integration of bodily functions as well as detecting changes inside and outside the body
According to the question, the answer is endocrine system it works with the nervous to control the internal organs it helps with regulation of the body hormones growth and reproduction.
What are 3 main functions of the endocrine system?Makes Hormones for Mood, Development, and Growth. Many different vital hormones are created and controlled within the endocrine system.Sends Hormones into Your Bloodstream.Regulates the Release of Hormones.Thus, endocrine system it works with the nervous to control the internal organs.
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Water molecules attract each other. Attraction between similar molecules is referred to as
Answer:
Explanation:
the attractive forces between similar molecules is referred as cohesive forces water molecule attract each other through cohesive forces and has strong cohesion because of strong hydrogen bonding
Explain how the bacteria and animals around the hydrothermal vents showed scientists that life was much more adaptable than they had believed.
Explanation:
Well, its extremely hot in the hydrothermal vents. Scientists simply believed it would be impossible for anything to survive due to the heat. Bacteria and micro-organisms were able to adapt to growing there, though. So in short words, they survived extreme conditions teaching scientists that life was quite adaptable.
Weird fun fact: In Switzerland it is illegal to own just one guinea pig. Felt the need to mention that ^ Sorry, I know it has nothing to do with the question but i felt it was worth speaking of.
Which of these fields of science is the study of the atmosphere, including
climate and weather?
O A. Meteorology
O B. Oceanography
C. Hydrology
D. Geography
Answer:
It is actually Meteorology if im correct
Explanation:
i was learning it a couple weeks ago again lol
In red shift the wavelengths of light become ?
What step of the scientific method immediately follows "state the problem"?
A. Draw conclusions.
B. Make observations.
C. Form a hypothesis.
D. Design an experiment.
Answer:
c
Explanation:
before you can do a, c, or d you must form a hypothesis to be tested.
Can somebody help me ASAP , I’m timed!
Answer:
B.
Explanation:
B. carbon decays relatively quickly.
Worksheet 5 Cell Division for students answerkey from umuc
Answer:
binary fission,meiosis and
mitosis,
What are the Five characteristics of life
Answer:
The five characteristics of life are
Cells.
Obtain and Use Energy.
Reproduction.
Respond to the Environment.
Adapt/Evolve.
Explanation:
How is the structure of a unicellular organism different than the structure of a multicellular organisms? How does this affect function
How could these objects be classified: steak knife, screw, and saw blade? A. Objects made of metal B. Objects used for cutting C. Objects used to sew clothing D. Objects with handles
Answer: A.
Explanation: They are all made of metal
2. What is the function of the cell membrane?
Answer:
it protects the cell. it act as a receptor. it regulates the transport of substancesit receives chemical messenger from other cells.Specific steps for big 5
Answer:
study diligently, often pray according to beliefs, often read, do not delay homework, and ask permission from parents to always be blessed
how were the designs of pasteurs and redis experiment diffrent
why is it harder for a mountain climber to breathe when they are the top of a tall mountain like mount everest
Answer:
Hmm.
Explanation:
Because the air gets thinner the higher the elevation (like on Mount Everest).
It is harder for a mountain climber to breath when they are thr top of a tall mountain because there is lack of oxygen in the high evalation like mount everest
in summer, what happens to the hurricane’s temperature, category, and speed as it travels across a body of water and then land?
I think it starts to get slower as soon as it starts traveling because then hurricanes wouldnt be as bad and would be long, and it could possible get worse as it travels across the water because it could be sucking up water so then it would get bigger and worse. The tempertaure will get colder because it will then start to pour and cause destruction and make it windy and very chilly.
In summer the temperature of hurricane will get colder because it will then start to pour and cause destruction and make it windy and very chilly and it could be sucking up water so then it would get bigger and worse.
What is hurricane?Hurricane has been defined as the conditions which has been expected in a specified area. As defined by National Oceanic and Atmospheric Administration (NOAA), it means that hurricane conditions (sustained winds of 74 mph or greater) are possible within your area and hurricane warnings means hurricane conditions are expected in an area.
The warm ocean water allows more water to get evaporate and this gives more power for the Hurricane to began. Powerful winds clash as a result of the air to move towards upwards which has light wind around the area allows it to start moving round and round with this whole process continues to make the Hurricane powerful and faster.
Therefore, In summer the temperature of hurricane will get colder because it will then start to pour and cause destruction and make it windy and very chilly and it could be sucking up water so then it would get bigger and worse.
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Is DNP and cyanide an inhibitor of cellular respiration?
Answer: Yes.
Explanation:
DNP and cyanide are both cellular respiration inhibitor.
Cyanide is a neurotoxin that can prevent cellular respiration by it's inactivation activity on mitochondria enzymes called cytochrome oxidase.
DNP (2,4-Dinitrophenol is a chemical that inhibit cellular respiration. It help to shuttle proton across cell membranes of living cells by spreading the proton along along the mitochondria and collapsing the force that produced energy for the cell activities.
Without leaves green plants could not
Answer:Without leaves green plants could not live.
Explanation:because from leaves a plant take breath or do respiration. In leaves of plants there are small pores or stomata from where they breathe. So if we can't breathe we can't live.so,Without leaves green plants could not live.
please explain the interactions and interdependence of organisms within a biosphere. please provide me with a different example on these interactions and interdependence in the picture below. include nonliving organisms an illustrate why they are essential organisms
Answer:
The interactions, between organisms, is like humans talking
humans. The interactions are the animals
drinking the water, walking on the ground, climbing
trees, and more.
Explanation: Got it right :)
what will happen if there is no mitrochondria in a cell
Which of the following is NOT a principle of the Cell Theory? *
A. Cells are the basic units of life.
B. All living things are made of cells.
C. Very few cells are able to reproduce.
D. All cells are produced from existing cells.
Answer:
C is not a principle of the Cell Theory.
Explanation:
Very few cells are able to reproduce is NOT a principle of the Cell Theory
what is cell theory ?Cell theory is widely accepted view of origin of life on Earth functions, all organisms are made of either single cells or a group of cell create tissues, organs, and organisms.
Three major hypothesis of cell theory are all organisms are made of cells, Second, cells are the building blocks in the creation of tissues, organs, and entire functioning organisms. The third is the cells can only arise from other cells or pre-existing cells.
Two scientists called Theodor Schwann and Matthias Jakob Schleiden first developed the cell theory in the year of 1839, along with Rudolf Virchow another scientist who contributed to the theory.
Schleiden explained that the structural part of a plant was made up of cells and a crystallization process either within other cells or from the outside cells. Theodor Schwann explained that the structures of animals are composed of cells.
The modern cell theory explained some postulates like All living things are composed of one or more cells, arise from pre-existing cells by cell division, fundamental unit of both structure and function in living organisms.
The activity of an organism is the activity of independent cells, Energy flow observed within cells, contain genetic material like DNA and RNA in cell nucleus and cytoplasm.
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I am a chemical reaction that absorbs more energy than I release; my products have a higher bond energy than my reactant s. What am i?
it is an endothermic reaction
During which phase does the cell actually separate into two individual daughter cells?
Answer:
During which phase does the cell actually separate into two individual daughter cells? Explanation: Cytokinesis is the phase during which the cytoplasm of the cell divides and the cell actually separates into two cells. The term cytokinesis actually means cutting (kinesis) of the cytoplasm.
Explanation:
The parent cell separates into two individual daughter cells in the cytokinesis phase of mitosis. Details about cytokinesis can be found below.
cell.
What is cytokinesis?Cytokinesis is the process in which the cytoplasm of a cell divides following the division of the nucleus.
Mitosis is the biological process by which living cells replicate themselves and create offsprings.
Mitosis primarily involves the division of the nucleus while Cytokinesis is the division of parent cells into daughter cells.
Therefore, the parent cell separates into two individual daughter cells in the cytokinesis phase of mitosis.
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QUESTION 2
When you exercise, you get warmer. Name the process that goes on inside all the cells of your body, resulting in the production of
heat.
Thermogenesis is the process which produces heat in the body.
Body temperature is increased with exercise because your body's muscle moves continuously. Thermogenesis is the process through which our body's muscles, organs, and brain produce heat. Our muscles produce heat by shivering.
Hormonal thermogenesis is the process through which thyroid gland releases hormones in order to increase metabolism. This increase in the metabolism produces heat in the body and rises the temperature in the body so we can conclude that through thermogenesis our body produces heat.
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what plays a key role in stimulating appetite and enabling us to taste food
Answer:
taste bud is the one that stimulate appetite and enable us to taste
Explanation:
because without the taste bud, we won't know that a particular food contain ions, acids and base
[tex]\huge\red{\sf Question :}[/tex]
Describe in brief the various types of teeth in humans. Add a note on dental formula of man.
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8 incisors. 4 canines, also called cuspids. 8 premolars, also called bicuspids. 12 molars, including 4 wisdom teeth.
Human: deciduous teeth: 212/212; adult = 2123/2123. Both childhood molars are replaced by adult premolars. Adult total is double the formula = 32. Opossum: 5134/4134 (one less incisor on each side of the lower jaw).
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[tex]\huge\bold\red{Answer:-}[/tex]
The dental formula represents the arrangement of teeth in each half of the upper and the lower jaw. The entire formula is multiplied by two to represent the total number of teeth.
The dental formula for milk teeth in humans is:
[tex] \frac{2102}{2102} = 2[/tex]
Each half of the upper jaw and the lower jaw has 2 incisors, 1 canine, and 2 molars. Premolars are absent in milk teeth hence the zero.
The dental formula for permanent teeth in humans is:
[tex] \frac{2123}{2123} = 32[/tex]
Each half of the upper jaw and the lower jaw has 2 incisors, 1 canine, 2 premolars, and 3 molars. An adult human has 32 permanent teeth.
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