Ch.2 Review PS19

a material that can be represented by a chemical formula

Density affects how heavy something is?

CO₂ has how many atoms

which of the following causes a chemical change

flammability is a chemical property that tells whether a substance reacts in the presence of

which property of a substance is not affected by physical changes

which of the following results in a mixture

dissolving , evaporating, bending are examples of

size, shape, position are examples of __ change

unlike a mixture, a pure substance has a ____ composition

which of the following is not a potential sign of a chemical change

Which of the following is made up of at least 2 different types of atoms

 a stone sinks because it is ___ dense than water

every chemical compound is unique and different from the _____ it contains

a chemical change occurs whenever a ___ substance is formed

How can a chemical change be reversed

Knowing the chemical properties of a substance will tell you how the substance

soilds, liquids, and gases are 3 forms of matter that

anything that has mass and takes up space

D=M/V is the formula for

Aluminum foil is good in the kitchen because it is

a chemical property of copper is

The science of what matter is made of and how it changes

____ property describes how a substance acts when it reacts with other substances

The density of ____ is 1 g/cm3

H2O means that each water molecule contains 2 hydrogen atoms and __ oxygen atom

the smallest unit of an element that maintains the properties of that element

Different substances in a mixture

What tool would you use for seperating a mixture?

which of the following is not a pure substance

What is a clue that a chemical change has taken place?

digesting food is a ___ change

a smoothie is a ___ mixture

A mixture has

A substance that cannot be broken down into simpler substances