Introduction To Chemistry 2016

Test Description: States of matter, physical and chemical properties, physical and chemical changes, atomic composition.

Instructions: Answer all questions to get your test result.

1) This is a characteristic property, and is the temperature at which a solid changes state and becomes a liquid.

2) characteristics of substances that are used to describe and identify matter, such as size, shape, color, and ability to react to other chemicals

3) the energy of a substance heat, this increases as the temperature increases, causing the molecules to move faster

4) the change in state from a solid directly to a gas, and never passes through the liquid state (like dry ice)

5) a solid that forms during a chemical reaction when two or more liquids are mixed

6) when reading and writing chemical formulas, this is the small number after a chemical symbol that tells how many atoms of the element there are

7) this forms when two or more ELEMENTS chemically combine

8) this is created when two or more atoms chemically combine (the atoms can be of the same element, or they can be different

9) the smallest particle of an element that cannot be chemically broken down further

10) Occurs without altering the chemical makeup of a substance, such as dissolving sugar in water

11) when two or more substances chemically combine and form new substances (such as a gas); occurs when the bonds between atoms break or new ones form

12) the amount of matter an object contains

13) this state of matter has a definite shape and a definite volume; the particles are tightly packed in a fixed position

14) this state of matter is made of particles that are free to move around but stay close to one another

15) this state of matter has particles that move quickly and spread out to fill the container

16) Evidence of this is the formation of a gas

17) occurs when a liquid changes state to a gas, such as when water boils

18) occurs when a liquid changes state to a gas, such as when a water puddle slowly disappears throughout the day

19) the change in state when a gas cools and the molecules slow down to become a liquid

20) the amount of space that an object takes up


*select an answer for all questions

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