Please help, urgent!! Will give extra points, thank you so much!!

Please Help, Urgent!! Will Give Extra Points, Thank You So Much!!

Answers

Answer 1

Answer:

1.proton

2.nucleus

3. electrons

4.nucleus??

5. protons and neutrons

6. electrons

7.neutrons

Explanation:


Related Questions

how to Convert 2.00 miles to fathoms?

Answers

Answer:

1,760

Explanation:

There are 880 fathoms in a mile. To convert miles to fathoms, multiply the mile value by 880.

So, 2.00 × 880 = 1,760

i need famous invention from the last 200 years

Answers

Answer:

ancient Egyptian event lighthouses including the huge lighthouse of Alexandria

Explanation:

-250 BCE

define a primary source and secondary source​

Answers

Answer:

primary source: documents the result of original researche.

: is written by those who have conducted researche.

: includes firsthand information about their methodologies, data, results or conclusions.

Secondary source: summarizes, compares, critiques or interprets the primary source.

Explanation:

Primary source is the research articles published in scholarly, peer reviewed journal.

Secondary source is the summarises, critiques or interpretations of primary source.

Given that the density of water is 1.00 g/mL, the density of toluene is 0.867 g/mL, and the density of chloroform is 1.48 g/mL, what layer corresponds to what compound? ​

Answers

Answer:
Top-Toluene
Middle-Water
Bottom-Chloroform

Explication:
Chloroform is on the bottom layer because it is the densest liquid.
Toluene is on the top because it is the least dense.
Water is between the two because it’s density is between chloroform and toluene.

If you find the mass of a sample to be 42.1 g and the actual mass is 42.0 g. your percent error would be what?

Answers

Answer:

0.24%

Explanation:

To find the percent error, first subtract the actual value by the expected value.  You can ignore the sign of the difference.

42.0 - 42.1 = -0.1 = 0.1

Divide the difference by the expected value and multiply by 100%.

0.1/42.1 = 0.0024 × 100% = 0.24%

The percent error is 0.24%.

What is the density of a 234 g sample with a volume of 22 mL?

Answers

Answer: 10.63

Explanation: You divide the mass by volume.

Answer:

10.64g/cm³

Explanation:

1cm³ = 1ml

22 × 1cm³ = 22cm³

Density = Mass ÷ Volume

234 ÷ 22

Density = 10.64g/cm³ or 10640kg/

What is the meaning of valence

Answers

Answer:

the combining power of an element, especially as measured by the number of hydrogen atoms it can displace or combine with

Can somebody help me with this it is a science question part #2 ( can you also check my other questions to see if you can answer them).

Answers

Answer:

given is 7200 km in 9 hours, formula is s=d/t, work is 7200/9, answer is 800km/h

How many moles is 50g of CaCO3?

Answers

[tex]\huge\underline\mathbb\pink{♡Your Answer♡}[/tex]

Formula mass of CaCO3 is

40 + 12 + 3-100amu....

100g CaCO3 = 1 mole..

50g of CaCO3 = 1÷ 100x 5 = 0.5mole...

Hence ,answer is 0.5mole...

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Hope it helps you..

Thanks...

Where does water seem to defy gravity in the straw or water jug

Answers

Answer:

a capillary action moves water upward defyinggravity

Key Concepts
Choose the letter of the best answer.
1. Which description defines pseudoscience?
A. process of investigation that resembles science and follows scientific methods
B. process of investigation that resembles science but does not follow scientific methods
C. process of investigation that does not resemble science but follows scientific methods
D. process of investigation that does not resemble science and does not follow scientific methods

Answers

Answer:

A

Explanation:

what do they all have the same of ?

Answers

Answer:

Same # of protons.

Explanation:

It's right cuz I took the test like last year and I still remember the answer

Describe how the Buchner funnel was used to filter the ocean water. What went through the
filter?

Answers

Answer:

ya um i though i know it

Explanation:

Which of the following is equivalent to 3.2 mg?
a
3.2 x 10-15 ug
b 3.2 x 1015 ug
С
3.2 x 10-3 ug
d
3.2 x 10'ug

Answers

Answer:

The options are not really clear, however, the answer is 3.2 × 10^3ug

Explanation:

Milligram (mg) and microgram (ug) are interconvertible measurements of mass or weight. One microgram (ug) is a millionth gram while one milligram (mg) is a thousandth gram.

Hence, one milligram is a thousandth microgram i.e. 1 mg = 1000 ug

Therefore, a measurement of 3.2mg in ug will be; 3.2 × 1000

= 3200

= 3.2 × 10^3 ug

Hence, an equivalent measurement of 3.2mg is 3.2 × 10^3ug.

Identify the biotic factors in the picture.

A)Deer
B)Rocks
C)Water
D)Grass

Help me plz l

Answers

A) Deer
D) Grass
Hope that helps you out (:

Which of the following is a formal science?

Answers

Answer:

Formal science is a branch of science studying formal language disciplines concerned with formal systems, such as logic, mathematics, statistics, theoretical computer science, artificial intelligence, information theory, game theory, systems theory, decision theory, and theoretical linguistics.

Explanation:Formal science is a branch of science studying formal language disciplines concerned with formal systems, such as logic, mathematics, statistics, theoretical computer science, artificial intelligence, information theory, game theory, systems theory, decision theory, and theoretical linguistics.

Is mowing the lawn a physical change or a chemical change?

Answers

Answer:

Physical change

Explanation:

The only change is in the shape, or length in this case, of the object. So its chemical makeup is still the same, it's still grass.

Mowing the lawn is considered a physical change. A physical change is a change in the physical properties of a substance or material without altering its chemical composition.

A physical change is a transformation that alters the physical properties of a substance, such as size, shape, or phase, without changing its chemical composition. In the case of mowing the lawn, the grass is physically cut into smaller pieces, but the individual grass blades themselves remain chemically unchanged.

When you run a lawnmower over a lawn, the sharp blades of the mower cut through the grass, trimming it to a desired height. This action changes the appearance and size of the grass, but it does not alter the identity or chemical composition of the grass. The grass blades are still composed of the same materials, such as cellulose and other organic compounds.

When you mow the lawn, you are cutting the grass blades into smaller pieces, but the grass itself remains the same chemically. The process of mowing only affects the physical appearance and size of the grass, not its fundamental composition.

Therefore, mowing the lawn is considered a physical change.

For more details regarding physical properties, visit:

https://brainly.com/question/18327661

#SPJ6

Describe the changes in energy that occur when a marshmallow is burned over a fire?

Answers

Answer:

When marshmallows are toasted, a chemical change occurs. The sugar molecules in the marshmallow are being changed into carbon (1). Sugar can be changed into water molecules. ... The flame on stage - oxygen diffuses to the surface of the marshmallow from the surrounding air.

summerize in your own words Continental crust is much thicker than oceanic crust (averages between 20 to 25 miles thick), but is actually slightly less dense than oceanic crust. The main type of rock on continents is called granite. So if these two types of crust were to collide into each other, what do you think would happen to the oceanic crust? As a whole, notice that the crust is lighter than the mantle. It is sometimes said that the crust "floats" on the mantle like an iceberg in water and that is not too far from the truth and is called isostacy. Finally, the crust is the coldest, most rigid, and brittle layer with lots of folds and fractures.Recall that oceanic crust is denser than continental rock like granite. Thus when two tectonic plates collide, the denser oceanic crust will subduct underneath the lighter continental crust. If the subducting rock becomes stuck, vast amounts of energy builds up. But once the pressure and energy is too great, the rock will rupture creating powerful earthquakes. As the subducted material sinks further, it will begin to melt under great heat and pressure, becoming less dense as it melts, and rise up as magma to form dangerous composite volcanoes. Mountain ranges created by oceanic-to-continental convergence are the Andes mountains in South America, the Cascades in the western United States, and the Ring of Fire in the Pacific Ocean.

Answers

Continental crust is much thicker than oceanic crust (averages between 20 to 25 miles thick), but is actually slightly less dense than oceanic crust. The main type of rock on continents is called granite. So if these two types of crust were to collide into each other, what do you think would happen to the oceanic crust? As a whole, notice that the crust is lighter than the mantle

5/10
SKILL LEVEL
Beginning
Ellias is hungry for popcorn. He grabs a bag from the cabinet
and places it in the microwave. Once it has stopped popping
he opens the bag and finds lots of popped popcorn for him to
enjoy. What type of change occurs as popcorn is cooked?
a. chemical change
b. physical change
C. Material change
D.no change

Answers

Answer:

B.

Explanation:

This is physical change as the popcorn has expanded in size.

the answer is B-physical change

How do electrons of an element determine that element's reactivity?

Answers

Answer:

The number of electrons in the outermost shell of an atom determines its reactivity. Noble gases have low reactivity because they have full electron shells. Halogens are highly reactive because they readily gain an electron to fill their outermost shell.

Explanation:

Plz helppppp

A graduated cylinder contains exactly 40 mL of water. A rock was dropped into the
cylinder of water. The water level rose to 52 ml. What is the volume of the rock?

Answers

Explanation:

first of all you should know that

1 ml = 1 cm³

therefore

increase in volume after putting stone=∆volume

= 52 - 40

= 12 ml

= 12 cm^3

therefore volume of the rock= change in volume= 12cm^3

The volume of the rock dropped into a cylinder containing 40 mL of water is 12 mL.

From the question given above, the following data were obtained:

Volume of water = 40 mL

Volume of water + rock = 52 mL

Volume of rock =?

The volume of the rock can be obtained as follow:

Volume of rock = (Volume of water + rock) – (Volume of water)

Volume of rock = 52 – 40

Volume of rock = 12 mL

Thus, the volume of the rock is 12 mL.

Learn more: https://brainly.com/question/2058404

What is the mass, in grams, of a cube of copper that has a volume of 62.2 cm3?

Answers

Answer:

62.2 grams

Explanation:

1 gram (g) = weight of 1 cubic centimeter (cc, cm3)

? g = 62.2 cm3

(1 × 62.2 = 62.2cm3 )

(1 × 62.2 = 62.2g )

62.2g = 62.2cm3

what are the three different type of solution?explain them.​

Answers

Answer:

Click at the above pic and the ans will appear.

Hope it helps :)

why is nuclear fision relevant?

Answers

Answer:

nuclear vision provides energy for nuclear power and drives the explosion of nuclear weapons both uses are possible because certain substances called nuclear fuels undergo visions when struck by fishing neutrons and turned into emit neutrons when they break apart

Explanation:

I remember taking this test and seen this on the test and it was correct

Two descriptions for a sub-atomic particle are listed below: Description 1: Non-charged particle Description 2: Located inside the nucleus of an atom Which sub-atomic particle or particles fit these descriptions?

Answers

Answer:

Neutron particle

Explanation:

There's are three sub-atomic particles, two of which are in the nucleus: the neutron and the electron.

The electron has  negative charge, whereas the neutral is neutral (without a charge)

I believe this answers your question.

An organic chemistry student is experimentally determining the melting point of fluorenone. The experimental melting points are listed below from a to e. Which one should he discard so that he can say his data is precise?a. 83.5 °C.
b. 85.6 °C.
c. 83.6 °C.
d. 83.4 °C.
e. 83.3 °C.

Answers

Answer:

To say his data is precise, he has to discard option b - 85.6 degrees Celsius

Explanation:

During laboratory experiments, the precision of a result data covers the sameness of the data generated or results got each time the experiment is performed.

For the results to be seen as precise, the temperatures recorded during each experiment should be the same, or really close to each other.

Judging based on that, option B does not fit in as it is quite different from the other results by about 2 degrees Celsius. It also indicates that some errors may have occurred during the experiment.

To say his data is precise, he has to discard option b - 85.6 degrees Celsius.

The other temperatures recorded are close to each other. This would now make the data precise.

Which of the following observations NOT likely describes a chemical change? a A white solid was exposed to ultraviolet light and turned brown. b Two clear liquids were mixed together and a yellow solid formed c A solid was added to water and the mixture was stirred until the solid was no longer visible d A piece of metal was added to a liquid and bubbles formed on the surface of the metal

Answers

Answer:

The correct answer would be - c.  A solid was added to water and the mixture was stirred until the solid was no longer visible

Explanation:

Photostabalizing is the process where a solid change its color in the presence of ultraviolet light, it is a chemical change, so the first option would not be the correct answer.

when two liquid or aqueous solutions are mixed together and form a solid substance, this reaction is known as precipitation and it is a chemical reaction too.

When a solid is placed in a liquid and after stirring it makes the solid vanish is a physical change known as dissolving character.

Thus, the correct answer is option C.

A student measures the mass of an object and obtains three values: 21.57 g,
22.04 g, and 21.35 g. What is the average mass of the object?

Answers

Answer:

21.65

Explanation:

The average = total divided by the number of readings

21.57

22.04

21.35

Total = 64.96

Average = 64.96 / 3 = 21.65

Roll a die and spin a spinner . This example contains

Answers

Chance or random. There is no telling to what the die number is gonna be or what the wheel spins on
Other Questions
HELP!! What is f(x) = 4x + 8 when x = 7 Do you think that it is important to attend school? Why? Seven is part of all of the following sets of numbers exceptO irrational numbersO integersO rational numbersnatural numbers When looking at a state map how do you know which city is the capital.? Which of the following ancient areas did not have a strong centralized system of government but rather was divided into city states How are fossils found Which of the following solutions should an administrator use to reduce the risk from an unknown vulnerability in a third-party software application?A. SandboxingB. EncryptionC. Code signingD. Fuzzing if the fraction 396/x-10 is equivalent to -22, find the value of x. Which of the following is not a term used to describe exercise that helps theheart work better?A. AnaerobicB. CardioC.Cardio-respiratoryD. Aerobic 2/5 divided 1/2 as a unit rate 3. Scientists must understand thata. science cannot provide answers to all questions.b. scientific ideas are fact, and can never be revised.c. sound scientific ideas are frequently altered.d. nature is a constantly changing wonder, difficult to understand. Let a and b be numbers and b70, and let m and n be positive integers. Write each expression using the fewest number of bases possible. Youyou Your shadow is sunlight on a plate of silver; Your footsteps, the seeding-place of lilies; Your hands moving, a chime of bells across a windless air. The movement of your hands is the long, golden running of light from a rising sun; It is the hopping of birds upon a garden-path. The late 1800s saw a rise in people migrating from the rural areas to the city. These people were forced to live in what type of domicile? A. homesteads B. immigration camps C. city centers D. slums Which of the following cities are capitals of their Country?A. St. PetersburgB. ManillaC. AccraD. WindhoekE. LijiangF. Paramibo what is the product of -9(5-2x) what traits does Alfred have? 16. Which of these provides most of the oxygen in Earth'satmosphere?coral reefsrainforest plantsocean phytoplanktoncontinental grasslands Which of these words is an adjective that can be used to make a sentence more descriptive?A.maliciousB.countenancecu grievanceDbenediction The amount of money invested in a retirement fund is an example of which of the following?a. investment assetb. liquid assetc. long term assetd. use assetanswer: investment asset e2020