State of matter
Describe how the particles of a solid move
They have a definite shape and do not move from their position.
What is located in the nucleus of an atom?
neutron and electron
What is a mixture?
Two or more substances combined, everything keeps their own properties
What is a physical change?
The appearance of an object changes but not the atoms
An elements location on the periodic table shows its ----------
properties
Describe how the particles of a liquid move
They slide past one another
What are the three types of subatomic particles and what are their charges?
proton - positive
neutron - neutral
electron - negative
What is a solution?
Two or more substances blend together to make one thing that looks the same throughout. Nothing is chemically bonded.
What is a chemical change?
A reaction that changes the atoms/molecules of a substance into a new arrangement creating a new substance.
What are the rows called and how are they organized?
Periods - By atomic number
Describe how the particles of a gas move
Freely about any space that they are in.
What is an element?
A pure substance with only one type of atom.
What is a pure substance?
A substance that has only one type of matter. It can be a pure element or a pure compound, what matters is that all the atoms/molecules are in the same arrangement.
Give an example of a physical change
Response may vary
What are the columns called and why are they significant?
Groups - elements in the same groups have the same properties
How does heat change a solid to a liquid and a liquid to a solid?
Add heat/ remove heat
What is a molecule?
Describe what the pH scale is and where an acid would be located and where a base would be located.
A number system from 1-14 that rates if something is acid or base. 1-6is an acid 8 - 14 is a base.
Give an example of a chemical change.
Student answer may vary
What does the law of the conservation of matter/mass say?
Matter/mass cannot be created or destroyed only changed.
What process changes a gas into a liquid? (Must have the specific name)
Condense (any variant is permitted)
What is a compound?
Matter with two or more elements chemically combined.
What do you get when you mix an acid with a base?
Water and -----------
Salt
If you have 1000g of a compound that reacts and splits into two new compounds what is the total mass of the two new chemicals?
1000g
No seriously ANY QUESTIONS THAT INVOLVE THE LAW OF CONSERVATION OF MASS/MATTER THE ANSWER WILL ALWAYS SHOW WHAT?
The same mass. Whether it is showing mass doesn't change or an equation where you had two chemicals the masses should always be the same.