Atoms
Molecules & Compounds
States of Matter
Properties of Matter
Density
100
An atom is the _______ particle of a substance that has all the properties of the substance
smallest
100
Molecules are made up of two or more _____ joined together
Atoms
100
What are the three states of matter?
Solids, liquids, and gases
100
Is melting a physical or chemical property?
Physical
100
To find density, you divide mass by
Volume
200
Who proposed the "plum pudding" model of the atom?
J. J. Thompson
200
A compound is a substance formed when _____ or more chemical elements are chemically bonded together.
Two
200
Has a definite volume but not a definate shape
Liquid
200
any characteristic that gives a sample of matter the ability to undergo a change that alters its composition
Chemical change
200
a measure of how much matter is in a certain volume
Density
300
Who proposed the planetary model of the atom?
Ernest Rutherford
300
This compound consists of two hydrogen atoms that are bonded to an oxygen atom.
Water
300
Has a definite shape and volume
Solid
300
The ability of paper to burn is a
chemical property
300
You found a rock with a volume of 30cm3 and a mass of 60 g. What is its density?
2 g/cm^3
400
Atoms are made of 3 parts. What are they?
Protons, electrons, and neutrons.
400
There are two types of chemical bonds that are found in compounds. The two chemical bonds are covalent bonds and ________.
ionic bonds
400
In what state to molecules move the fastest?
Gas state
400
change within the matter’s physical appearance is altered, but composition remains unchanged
Physical change
400
Buoyancy is the ability to _____ on a fluid
Float
500
What particles are found in the nucleus?
Protons and neutrons.
500
Covalent Bonds are a chemical bond that involves the sharing of _______ between atoms.
Electrons
500
What is the phase change of a solid turning into a gas?
Sublimation
500
Is cooking an egg an example of a physical or chemical change?
Physical
500
For an object to be buoyant, it must be more or less dense than what it is floating in?
Less
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