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14 questions
The amount of mass before the reaction is the same that after it.
True
False
All gases have a definite shape and volume.
True
False
A physical change doesn’t involve a change in the composition of a substance..
True
False
Color change and formation of bubbles are not signs of a chemical change.
True
False
Everything that does not takes up space is matter.
True
False
Particles of matter that are close together are attracted to one another.
True
False
Dissolving is a chemical change because the identify of the substance does not change.
True
False
Oxidation is a chemical change.
True
False
Volume is the amount of space a sample occupies.
True
False
Gravity is always the same on every planet.
True
False
The formation of a new substance is a characteristic of chemical changes.
True
False
The solid state of matter is always going to have a definite shape.
True
False
All chemical reactions do not involve energy changes.
True
False
A chemical change can be reversible.
True
False
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