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Ch-Ch-Ch-Ch-Changes
DMV
True/False
Vocabulary
Vocabulary
100
A loaf of bread growing mold is this type of change
What is chemical
100

The amount of matter in an object, measured in grams

What is mass?

100

Liquid water, ice and water vapor are different compounds

What is FALSE

100

Anything that has mass and takes up space

What is MATTER

100
A change in which a substance changes one or more of its physical properties without transforming into a new substance
What is a physical change
200
Which of the following images (given the same volume) shows the greatest density
What is figure D
200

To find the _____ of a rectangular object you multiply the object's length, width and height

What is volume?

200
Is Axe body spray considered matter?
What is true
200

The ability to do work or cause change

What is ENERGY?

200

A group of two or more atoms held together by chemical bonds

What is a molecule?

300
Condensation is an example of this type of change
What is physical
300

What units are used to measure volume?

What is cubic centimeters or milliliters?

300

Energy is absorbed in an exothermic reaction

What is FALSE?

300
A change in which the atoms of one or more substances are rearranged into one or more new substances
What is a chemical change
300
A property that characterizes the ability of a substance to undergo a change that transforms it into a different substance
What is a chemical property
400

Hardness, texture, color and freezing point are examples of...

What are PHYSICAL PROPERTIES
400

A 54-gram sample of an unknown material has a volume equal to 20 cm3. What is the density?

What is 2.7 g/cm3?

400
Mixing oil and water is an example of a chemical change
What is false
400

Soil, a salad and sugar water are all examples of

What is a mixture?

400
A material in which atoms of different elements are bounded to one another
What is a compound
500
After a chemical change, the _____________ molecules have been destroyed and _____________ molecules are in their place.
What is original and new
500

The fact that matter is not created or destroyed in ANY chemical or physical change

What is the law of conservation of mass

500

A(n) _______ is formed when two or more substances are so evenly mixed that you can't see the different parts

What is a HOMOGENEOUS MIXTURE?