Chemistry Middle School

Is this right?
...........

Is This Right? ...........

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Answer 1
Yes u are very right GOODLUCK!

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Answer:

False

Explanation:

Tearing a paper is a physical change because when the paper is torn only the appearance of paper is changed.

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I say it is most likely agree

Answer:

OF COURSE I AGREE.A CHEMICAL REACTION REARRANGES THE CONSTITUENT ATOMS OF THE REACTANTS TO CREATE DIFFERENT SUBSTANCES AS PRODUCTS

I need it done assap

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chemical reactions cannot be reversed and are visible
Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

How do you enter the density into the calculator?

A. volume (cm3) / mass (g) =
B.mass (cm3) / volume (g) =
C.mass (g) / volume (cm3) =
D.mass (g) X volume (cm3) =

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Mass (cm3)/Volume (g)

You know the drill by now-

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Answer:

distance   time

Explanation:

Answer:

First box : Distance

Second Box: Time

Explanation:

<3

Which shows the correct order of steps in the formation of coal?

Layers of dead plants pile up → plant matter is buried by rocks and dirt → dead plants fall in swamp → plant matter is compressed and is exposed to heat → coal forms
Plant matter is compressed and is exposed to heat → dead plants fall in swamp → layers of dead plants pile up → plant matter is buried by rocks and dirt → coal forms
Plant matter is buried by rocks and dirt → dead plants fall in swamp → layers of dead plants pile up → plant matter is compressed and is exposed to heat → coal forms
Dead plants fall in swamp → layers of dead plants pile up → plant matter is buried by rocks and dirt → plant matter is compressed and is exposed to heat → coal forms
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Answers

Answer:

-D is the corect answer.

Dead plants fall in swamp → layers of dead plants pile up → plant matter is buried by rocks and dirt → plant matter is compressed and is exposed to heat → coal forms

The shallowest part of the ocean is the
a. Continental slope
b. Continental shelf
c. Trench
d. Mid-Oceanic Ridge

Answers

c. Trench................

B. Continental shelf

Describe the kinetic energy/ movement of the particles in plasma.

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kinetic energy is a moving object potential energy is stored energy

Answer:

Plasma is the highest energy state kf matter consisting of a collection of free-moving electrons, positive ions and neutral particles.

How do particals move around in plasma? plasma particles are spred our and move around randomly, but unlike gas, they contain some free ions and electrons, which gives plasma its ability to conduct electricity.

what is kinetic energy? A form energy that an object or particle by reason of motion. Dictionary def.- energy which a body possesses by virtue if being in motion.

i wasn't sure which one you needed. :)

Select all that apply. Wire is typically made out of metal because metal

Question 10 options:

Is malleable


Is ductile


Is brtittle


Conducts electricity

Answers

The correct answer is conducts electricity.

Metal is a really good conductor and is used in different electronics. It is also ductile, meaning it can be pulled into a thin wire.

Hope you have a wonderful day:)

Wire is typically made out of metal because metal is ductile and conducts electricity.

Ductility is the property of metal which makes it easy to be stretched into wire when drawn without breaking. This is a great feature for wires.

Conductor of  electricity : The ability for a material to allow electricity to pass through it with ease shows it is a good conductor of electricity.This is also a great feature for wires.

The transition metal, copper is usually  preferred for the manufacture of electrical wires This is because apart from being thermal resistant and cheap, it is very ductile and a good conductor of  electricity.

See more on the property of metals to make wires :https://brainly.com/question/13854828

Organisms on earth are
what-based life forms
oxygen
hydrogen
carbon

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I think that the answer is oxygen, oxygen plays a huge role in the evolution of organisms.
Oxygen. You need it to survive.

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Answer:

800 calories

Explanation:

It takes 80 calories to melt 1 gram of ice. If 1 g of ice (at 0 degrees Celsius) is given 80 calories. Freezing water at 0 degrees Celsius is vis versa.

Answer:

800 calories

Explanation:

hope this helps :)))

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The answer is Agree :)
The answer is agree :)

And done! :)))))))))

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The answer is 2456774 becaue i just know teehee

How does the temperature of water affect its ability to hold oxygen?

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Answer:The solubility of oxygen and other gases will decrease as temperature increases 9. This means that colder lakes and streams can hold more dissolved oxygen than warmer waters. If water is too warm, it will not hold enough oxygen for aquatic organisms to survive.

Explanation:

Which observation shows that a substance is malleable?

O A. The substance can be stretched easily into wires.

O B. The substance flattens out when struck with a hammer

O C. The substance breaks apart when stretched.

O D. The substance shatters when struck with a hammer.

Answers

Answer:

the answer is B

Explanation:

the definition of malleable is- able to be hammered or pressed permanently out of shape without breaking or cracking

Answer:

Explanation:

The substance flattens out when struck with a hammer. Took test.

How does the atmosphere make Earth warmer?

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Answer:

Earth's surface warms up in the sunlight. At night, Earth's surface cools, releasing heat back into the air. But some of the heat is trapped by the greenhouse gases in the atmosphere. That's what keeps our Earth a warm and cozy 58 degrees Fahrenheit (14 degrees Celsius), on average.

Explanation:

Steps of Cellular Respiration:

___ Carbon dioxide molecules form.
___ Sugar molecules are broken down.
___ A flow of electrons produces chemical energy and water.

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so the first one is sugar molecules are broken down then it's carbon dioxide molecules form then a flow of electrons produces chemical energy water

The answer goes 2,1,3

Atomic theory question Rutherford’s model

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The correct answer is bounced

What are some ways your body regulates the increase of body temperature that also occurs when exercising?

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Answer:

Doing push-ups

Explanation:

When you workout you get hot so the tempeture of ur body increase.

Some ways by which your body regulates the increase of body temperature that also occurs when exercising are evaporation of sweat and skin blood flow.

What is effect of exercising on body temperature?

Our muscles quickly deplete stored energy when you start exercising. To make more energy, muscles combine oxygen with ‌adenosine triphosphate‌ or ATP. This process creates heat energy as a byproduct. Muscles generate the most heat because they produce so much energy.

Extra heat raises your body temperature, so your body needs to eliminate heat as quickly as possible.

Therefore, some ways by which your body regulates the increase of body temperature that also occurs when exercising are evaporation of sweat and skin blood flow.

Learn more about exercising, here:

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Compound: ________________
. Found in saltpeter in soil; contain nitrogen (N)

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Potassium nitrate

Potassium nitrate is one of several nitrogen-containing compounds collectively referred to as saltpeter or saltpetre. Major uses of potassium nitrate are in fertilizers, tree stump removal, rocket propellants and fireworks. It is one of the major constituents of gunpowder (black powder).

Answer:

Potassium nitrate or KNO3

Explanation:

Ulay the tiles to the correct boxes to complete the pairs. Not all tiles will be used
The chemical formula for artificial sweetener is CyHgNO35. Match the elements with the numbers found in one molecule of artificial
sweetener
carbon
hydrogen
argon
nitrogen
oxygen
1
7
>
3
5.
Reset
020 Edimentum. All rights reserved
A
12:46
10/13/

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Answer  c-7, h-5,a-0,n-1,0-3. This is the right form of the given context that can be arranged in the proper order. The pairs are completed in this order.

This automatically matches all the elements with its number that is found in one single molecule of C7H5NO3S which is also an artificial sweetener. Each element matches with the right number contained in one molecule of it.

Explanation:

Explanation:

It is written: ‘As surely as I live,’ says the Lord,

‘every knee will bow before me;

every tongue will acknowledge God.’

Romans 14:11

Which shows the correct order of steps when using natural gas to generate electricity?

Energy is converted → gas is burned → boiling water makes steam → steam turns turbines
Gas is burned → boiling water makes steam → steam turns turbines → energy is converted
Boiling water makes steam → steam turns turbines → energy is converted → gas is burned
Steam turns turbines → gas is burned → energy is converted → boiling water makes steam i will give brainliest

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The second answer o think
the second one, B.)

Gas is burned → boiling water makes steam → steam turns turbines → energy is converted
Boiling water makes steam → steam turns turbines → energy is converted

most of the substances around us are ________

compounds
free atoms
pure elements

Answers

Answer:

free atoms

Explanation:

Answer:

Compounds is the answer i think

Explanation:

A compound consists of two or more kinds of atoms.

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Agree. This is true because you’re technically destroying atoms

Answer:

disagree

lavoisers law of masses

Explain how getting sick can affect the body’s ability to maintain homeostasis.

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Answer:

If your body manages to maintain homeostasis, then it means everything is in order, and you are in a healthy state. However, getting sick would indicate that your body conditions are not stable. This happens when the homeostasis is disrupted due to the interference of pathogens such as viruses and bacteria; for example, catching a flu virus would cause you to have a fever, cold, sore throat, and muscle aches. These symptoms eventually weaken your body and prevent you from performing your daily life functions.

The homeostasis has been affected while getting sick due to a change in temperature with disturbed electrolyte balance.

Homeostasis has been the ability of the body to maintain the equilibrium balance of the electrolytes, and elements for the proper functioning of the system.

The homeostasis has been maintained with the temperature and balance of the components in the preset limit. However with the change in the homeostasis results in the change in the balance and functioning of the organs.

While getting sick, we have changes in the body temperature along with electrolyte dis-balance. This results in disturbed homeostasis.

For more information about homeostasis, refer to the link:

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Photosynthesis occurs. How do plants get the carbon dioxide they need for photosynthesis?

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why wouldn’t that make a difference, hola mi, polo el coron
the get the carbon dioxide they need for photosynthesis from the composition of CO2 in the air

The chemical symbol for sulfuric acid is H2SO4. How many atoms are contained in each molecule of sulfuric acid?
a.
3
c.
6
b.
5
d.
7

Answers

C.6

Look at it as H2 So4
H2 two atoms of that element
So4 four atoms of that element
And then up and you get six

answer this please sooo

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Take your time and try again.
1) Matter
2) solid
3) Chemical
8) boiling

How many elements in this compound: HClO
1
2
3
4

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There are three elements hydrogen, chlorine, and oxygen

Hypochlorous acid has a chemical formula of HClO. It has one hydrogen (H) atom, one chlorine (Cl) atom and one oxygen (O) atom. so 3

Which of the following statements best defines the Law of Conservation of Mass?
Mass cannot be created but it can be destroyed under extreme presures
Mass cannot be conserved during a chemcial reaction: a little bit of mass is always lost
The mass cannot be created nor destroyed
Mass can be created and destroyed

Answers

Answer: mass cannot be created or destroyed.

Explanation:

Energy cannot be created or destroyed and mass is an energy!

Answer choice C

The Law of Conservation of Mass states Mass is neither created or destroyed in chemical reactions. It’s on Google as well.
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