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States of Matter
pH
Atomic Properties
Chemical and Physical Changes
The Periodic Table
100
This state of matter has a definite shape and volume.
What is a solid
100

Define a "pH"

A value to express the acidity or the alkalinity of a substance

100
The subatomic particles (the parts of an atom.)
What are protons, neutrons, and electrons.
100
In this reaction, a solid becomes a liquid when heat energy is added. (Chemical or Physical)
What is a physical reaction.
100

What is the chemical name for symbol Ni?

What is Nickel

200
This state of matter has no shape or volume.
What is a gas
200

How can you tell if a solution is an acid

What is has Acid in the name or starts with H

200
The inner part of an atom, composed of protons and neutrons.
What is the nucleus.
200
In this reaction, a substance changes color and a burning smell is released. (Chem or Phys)
What is a chemical reaction.
200
The atomic number of Carbon.
What is 6?
300
This is the phase change that occurs when a liquid becomes a solid.
What is freezing
300

Name four acids.

what is alot of things
300
The charge of an electron.
What is negative.
300
In this reaction, there is a temperature decrease and a gas is produced. (Chem or Phys)
What is a chemical reaction.
300
The number of protons in Calcium.
What is 20?
400
This is the state of matter in which molecules are the most dense.
What is a solid.
400

Water should have a pH of what

what is 7

400
The charge of a neutron.
What is no charge or neutral.
400

List at least 4 indicators of a chemical change.

What are color change, gas is produced, smell is produced, the reaction is irreversible, temperature change (without cooling or heating,) electrical energy is produced.

400
The atomic weight of Lithium to the nearest hundredth.
What is 6.94?
500
List the 3 states of matter in order from the lowest to the highest energy level.
What is solid, liquid, gas, (and plasmsa)
500

If you have a lemon with a pH of 3 how much stronger is your stomach acid at a pH of 1? 

What is 1000 times stronger 

500
Atoms share these when they bond.
What are electrons?
500
In a chemical reaction, CaOH (calcium hydroxide) and CO2 (carbon dioxide) are _________, CaCO4 (chalk) and H20 (water) are __________. (products, reactants)
What are reactants and products
500
The valence (or electrons available for bonding) in Oxygen.
What is 6?