Anything that occupies space and has mass. It normally has three states: solid, liquid, and gas.
What is matter?
This state of matter has atoms that vibrate back and forth without being able to move past one another
What is a solid
A change in which a reaction creates a new substance
What is a chemical change?
The temperature at which water evaporates
100OC
The side the PRODUCTS are on
What is the right side
Pure substances that cannot be further broken down into simpler substances by ordinary chemical reactions.
What are elements?
A state of matter where particles move the fastest
What is a gas
Alteration of a substance in its phase of matter and appearance without its being changed into a new substance.
What is a physical change?
The temperature at which water freezes
0oC
The side the REACTANTS are on
What is the left side.
The smallest unit of an element that is still an element.
What is an atom?
The state of matter that is the densest for water
What is a liquid
A substance that includes more than one type of element and/or compound.
What is a mixture?
Explain what is happening during the flat portions of the phase change diagram.
Balanced or unbalanced
CH4 + 4Cl2 = CCl4 + 4HCl
What is YES!
The center of the atom is a cluster of positively charged particles and neutral charged particles.
What is a nucleus?
When a solid goes to a liquid
What is a melting
Two or more elements chemically bonded together
What is a compound?
When balancing chemical equations, you can only add this to the equation
What are coefficients
Matter can neither be created or destroyed, only altered to a different form.
What is the conservation of matter
Negatively charged particles that move constantly in levels, or shells, around the nucleus.
What are electrons?
A substance going from a gas to a liquid
What is condensation
Wood burning is an example of this
What is a chemical change
This CAN NOT be changed when balancing equations
What are subscripts
An equation can only be balances if all molecules have coefficients
What is false
Responsible for the binding and stability of atoms as the atoms form molecules and are negatively charged.
What are electrons?
When frozen carbon dioxide gains energy quickly it skips the liquid phase and goes to the gas phase. This is called,
Salt and water are mixed together and dissociate. This reaction is called...
What is a chemical reaction
This was the fourth state of matter
What is plasma
In the following molecule, the "4" only goes with these atoms
Pb(NO3)4
What is N and O