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neonofarm [45]
3 years ago
14

How do you pass sience

Chemistry
1 answer:
MariettaO [177]3 years ago
8 0

Answer:

Listen in Class. The first step to passing any test is to begin preparing right there in the classroom. ...

Review Lab and Lecture Notes. ...

Know the Vocabulary. ...

Develop a Study Schedule. ...

Take Advantage of Online Study Resources.

Explanation:

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What would happen if you tried to cut a sheet of aluminum foil in half over and over again?
kodGreya [7K]

Answer:

Its properties remain unchanged as it is undergoing physical changes.

Explanation:

Hello.

In this case, since aluminum foil is made up of aluminum leaves having a 0.2-mm thick it is widely known that is deformed when wrinkled due to its tiny average thick. Moreover, when cut half over and over again smaller pieces are obtained every time it is done. Nevertheless, even when its shape and size can be modified via physical actions, its properties remain unchanged because cutting is a physical change which is not affecting its chemical composition.

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3 years ago
A _______ reaction involves burning. this reaction requires energy to start, but it releases more energy then is required to sta
GenaCL600 [577]
The answer is combustion
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What is the length of the hypotenuse of the right triangle ABC in the figure?
Lostsunrise [7]
Triangle ADC is also a right triangle, with D the right angle, and AC the hypotenuse. 
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AD/AC = AC/AB 5/6 = 6/AB AB = 6*6/5 = 36/5 = 7.2
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3 years ago
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Jim draws a wave that looks like this wave:
Travka [436]

wave length is what he decreased

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Eli states that sodium phosphate is a mixture because it is composed of both sodium ions and phosphate ions.
Vlad [161]

Answer:

It is incorrect because sodium phosphate is a compound that has a single composition.

Explanation:

Sodium phosphate is a compound and not a mixture. It is made up of sodium and phosphate ions and they exists as just a single compound and not different entities.

The parts of a mixture exists separately and they retain their identities.

  • In the compound a sodium phosphate we have 3 atoms, Na, P and Oxygen joined together in a definite grouping.
  • The properties of the compound are different from the individual elements that makes them up.  
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