States
Nature
Structure
Form
Random but Relevant
100
This causes matter to change from one state to another.
What is temperature?
100
Two ways that a chemical change is different than a physical change.
What are that a chemical change creates a new substance and is irreversible?
100
Matter is made up of___________________.
What are atoms?
100
A substance that cannot be broken down into a smaller substance by normal chemical means is an____________.
What is an element?
100
Anything that has mass and takes up space.
What is matter?
200
The Four States of Matter...
What are solid, liquid, gas, and plasma?
200
Are density, mass, and volume measurable or observable properties?
What are measurable?
200
This is the smallest unit of a pure substance
What is an atom?
200
This is created when two or more substances physically combine.
What is a mixture?
200
True or False: The nucleus accounts for the majority of mass in an atom.
What is true?
300
When matter changes from a liquid to a gas, it is called_________________.
What is vaporization?
300
Mass divided by density equals__________.
What is volume?
300
This is formed when two or more atoms chemically bond.
What is a molecule?
300
This forms when two or more substances chemically combine.
What is a compound?
300
The atomic number is equivalent to the number of _______________.
What are protons?
400
When matter changes from a solid to a gas it is called___________________.
What is sublimation?
400
Volume multiplied by density is the formula for_________________.
What is mass?
400
Name the subatomic particles and their charges.
What are protons (+), neutrons (+/-), and electrons (-)?
400
The most abundant element in the universe...
What is hydrogen?
400
True or False: The protons and neutrons have less mass than electrons.
What is false?
500
When matter changes from a gas to a liquid is called__________________.
What is condensation?
500
Mass divided by volume equals _______________.
What is density?
500
What fraction represents the size of the nucleus compared to an atom?
What is 1/1000?
500
The number of elements that are found freely in nature.
What is 20?
500
Describe the density of the nucleus.
What is very dense?
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