Watermelon 123
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Watermelon 123
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Chapter 2: The Nature of Matter Study Guide

Question 1 of 16

1

What is the ability to dissolve in water and to conduct electricity ?

Select one of the following:

  • physical properties

  • chemical properties

Explanation

Question 2 of 16

1

Water is an example of ...

Select one of the following:

  • an element

  • a homogeneous mixture

  • a compound

Explanation

Question 3 of 16

1

When matter changes the most common form of energy released or absorbed is ELECTRICAL ENERGY

Select one of the following:

  • True
  • False

Explanation

Question 4 of 16

1

New substances are always formed when matter undergoes a

Select one of the following:

  • Chemical Change

  • Physical Change

Explanation

Question 5 of 16

1

Chemical energy is the energy

Select one of the following:

  • stored in the bonds between atoms

  • of moving, electrically charged particles

Explanation

Question 6 of 16

1

What is matter?

Select one of the following:

  • anything that has mass but doesn't take up space

  • anything that has mass and takes up space

Explanation

Question 7 of 16

1

What is a chemical property?

Select one of the following:

  • properties that change into different substances

  • properties that shange shapes and substances

Explanation

Question 8 of 16

1

What is an element?

Select one of the following:

  • pure substances that cannot be broken down into other substances

  • pure substances that are able to break down into other substances

  • substances that turn into compounds when combined

Explanation

Question 9 of 16

1

What does the law of conservation of matter state.

Select one of the following:

  • matter cannot be created or destroyed

  • matter cannot be created but it can be destroyed

  • matter can be created but it can't be truly destroyed

Explanation

Question 10 of 16

1

What is an endothermic reaction?

Select one of the following:

  • change in which heat is taken

  • change in which energy is taken

Explanation

Question 11 of 16

1

What are the three ways that compounds and mixtures differ?

Select one of the following:

  • When elements are combined they form compounds having properties different from the uncombined elements each substance in a mixture has individual properties. Also, the parts of a mixture are not combined in a set ratio.

  • When elements are combined they form compounds having properties different from the uncombined elements each substance in a mixture has individual properties. Also, the parts of a mixture are combined in a set ratio.

Explanation

Question 12 of 16

1

How does a physical change differ from a chemical change?

A physical change change in shape but is the same substance after the change. However the chemical change turns into a new substance.

Select one of the following:

  • True
  • False

Explanation

Question 13 of 16

1

How are changes in matter related to changes in energy?
Changes in matter are related to changes in energy because the substances change.

Select one of the following:

  • True
  • False

Explanation

Question 14 of 16

1

How do you know that the burning of candle wax is an exothermic change?
The burning of candle wax is an exothermic change because it produces carbon dioxide,water, and heat.

Select one of the following:

  • True
  • False

Explanation

Question 15 of 16

1

If two mixtures are mixed and the temp rises, did it absorb or release thermal energy?
It realeased thermal energy because the heat was let out and made the temperature rise.

Select one of the following:

  • True
  • False

Explanation

Question 16 of 16

1

What is the ratio of phosphorus atoms to oxygen atoms in the compound?
The ratio is two to four

Select one of the following:

  • True
  • False

Explanation

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