Stoichiometry
Acids+Bases
Reactions
Trends
Polyatomic Ions
100

6.022 x 10^23

What is Avogadros number>

100

This scale is used to measure how acidic or basic a substance is.

What is the pH scale?

100

This is what happens when substances change into new substances.

What is a chemical Reaction?

100

This chart organizes all the elements.

What is the periodic table?

100
The formula for the polyatomic Ion CN-

What is cyanide?

200

This is the unit used to measure the amount of a substance in chemistry

What is a mole?

200

A substance with a pH less than 7 is called this.

What is an acid?
200

This is a sign that a chemical reaction may have occured, like bubbles forming.

What is evidence of a reaction?
200

Is how far an atom can pull electrons toward itself.

What is electronegativity?

200

This formula is the polyatomic ion Perchlorate

ClO4-

300

This must happen to a chemical equation before you can solve stoichiometry problems

What is balancing the equation?

300

True or False, a lemon has a pH that is more Basic

What is False?

300

This type of reaction happens when something burns in oxygen

What is combustion?

300

This is the trend where atomic size increases as you go down a group.

What is atomic radius?

300
The formula for this polyatomic ion CH3COO-

What is acetate?

400

This tells how many moles of one substances react with another substance in a chemical equation.

What is a mole ratio?

400

This happens when an acid and a base mix and cancel each other out

What is neutralization

400

In this type of reaction, two substances combine to form one product.

What is a synthesis reaction?
400

This is the energy needed to remove an electron from an atom.

What is ionization energy?
400

The name for this polytomic ion is dihydrogen phosphate

H2PO4-

500

This principle explains why equations must be balanced before doing stoichiometry

What is the Law of Conservation Mass?

500

This is the chemical that forms when an acid reacts with a base and the solution becomes neutral.

What is water

500

This is the number of substances you start with in a chemical equation.

What are reactants?
500

This trend generally increases as you move across a period from left to right.

What is electronegativity?

500

The formula SCN- correlates to a polyatomic ion.

What is thiocyanate?