Chemistry Ch 2 Test Review

What is a product?

• matter that flows but has a definite volume

• starting substance in a chemical reaction

• substance formed in a chemical reaction

• alters a substance without changing its composition

Which term matches the definition: the simplest form of matter with a unique set of properties?

• phase

• solid

• solution

• element

What is a physical change?

• amount of matter an object contains

• part of a sample with uniform composition and properties

• contains two or more elements chemically combined in a fixed proportion

• alters a substance without changing its composition

Which describes a compound?

• homogeneous mixture

• substance formed in a chemical reaction

• contains two or more elements chemically combined in a fixed proportion

• matter with a definite shape and volume

Match the word with the following definition: matter that flows but has a definite volume

• solid

• liquid

• gas

• plasma

All of the following are general characteristics of a substance in the liquid state except...

• definite volume

• able to flow

• not easily compressed

• definite shape

In the chemical reaction iron + oxygen --> iron oxide,

• iron oxide is a reactant

• iron is a reactant

• oxygen is a product

• iron is a product

Which term does not fit with the others listed?

• solid

• reactant

• gas

• liquid

The chemical symbol for sodium is

• NA

• Na

• SO

• So

A gas is a form of matter that

• has a definite volume

• is generally a liquid or solid at room temperature

• takes the shape and volume of its container

• is difficult to compress