Chapter 2: The Nature of Matter Study Guide

Descrição

To study for upcoming tests
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Resumo de Recurso

Questão 1

Questão
What is the ability to dissolve in water and to conduct electricity ?
Responda
  • physical properties
  • chemical properties

Questão 2

Questão
Water is an example of ...
Responda
  • an element
  • a homogeneous mixture
  • a compound

Questão 3

Questão
When matter changes the most common form of energy released or absorbed is ELECTRICAL ENERGY
Responda
  • True
  • False

Questão 4

Questão
New substances are always formed when matter undergoes a
Responda
  • Chemical Change
  • Physical Change

Questão 5

Questão
Chemical energy is the energy
Responda
  • stored in the bonds between atoms
  • of moving, electrically charged particles

Questão 6

Questão
What is matter?
Responda
  • anything that has mass but doesn't take up space
  • anything that has mass and takes up space

Questão 7

Questão
What is a chemical property?
Responda
  • properties that change into different substances
  • properties that shange shapes and substances

Questão 8

Questão
What is an element?
Responda
  • 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

Questão 9

Questão
What does the law of conservation of matter state.
Responda
  • 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

Questão 10

Questão
What is an endothermic reaction?
Responda
  • change in which heat is taken
  • change in which energy is taken

Questão 11

Questão
What are the three ways that compounds and mixtures differ?
Responda
  • 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.

Questão 12

Questão
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.
Responda
  • True
  • False

Questão 13

Questão
How are changes in matter related to changes in energy? Changes in matter are related to changes in energy because the substances change.
Responda
  • True
  • False

Questão 14

Questão
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.
Responda
  • True
  • False

Questão 15

Questão
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.
Responda
  • True
  • False

Questão 16

Questão
What is the ratio of phosphorus atoms to oxygen atoms in the compound? The ratio is two to four
Responda
  • True
  • False

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