Atoms, Molecules, Compounds
Chemical Reactions
Types of Reactions
Periodic Table
Chemical and Physical Changes
Conservation of Mass
100

The smallest unit of matter which has properties of a chemical element.

What is an atom?

100

These are the ingredients of a reaction; they are on the left side of the arrow.

What are reactants?

100

When two elements combine to create a compound.

What is a synthesis reaction?

100

This is the name of the vertical columns on the periodic table. 

What is groups.

100

This change only changes the appearance of a substance or object.

What is a physical change?

100
These are the two key parts of a chemical equation. 

What are reactants and products?

200

Looking at NaCl and Cl2, which is a compound, and which is an element?

What is NaCl is a compound and Cl2 is an element. 

200

A process that involves the rearrangement of atoms to form new substances.

What is a chemical reaction?

200

When one of the compounds breaks apart and an element joins to make a new compound.

AB + C produces AC +B

What is a single Replacement reaction?

200

This is the side of the nonmetals on the periodic table.

What is the right side of the periodic table?

200

This is a type of change that is irreversible. 

What is a chemical change?

200

Conservation of mass means that the amount of products equals....

What is the amount of reactants? 

300

What are the three particles inside an atom?

What is protons, neutrons, and electrons?

300

The symbolic representation of a chemical reaction using symbols and chemical formulas.

What is a chemical equation?

300

When the product has a water molecule and carbon dioxide. 

What is a combustion reaction?

300

This is the reason that the transition metals are special on the periodic table.

What is they can have multiple charges?

300

Rusting is a sign of this type of change.

What is a chemical change?

300

Bonds are broken on this side of a chemical equation.

What is the reactants? 

400
Why are protons important?

Protons determine which element an atoms belongs to. 

400

What is the name of the number in front of a compound or molecules in a chemical equation?

What is a subscript?

400

When the two compounds in the reactant break apart to form two new compounds in the product.

What is a double replacement reaction. 

400

This is the name for the number of protons in a element. 

What is the atomic number?

400

A chemical change must happen for a _________ to take place. 

What is a chemical reaction?

400

Why is mass conserved in this chemical equation?

4 Fe + 3 O2 → 2 Fe2O3

What is there are an equal number of 4 Fe and 6 O atoms on each side? 

500

What does the kinetic theory of matter mean?

What is that atoms and molecules are in constant motion?

500

Every chemical reaction involves a change in

What is bonds, energy, etc.?

500

Chemical equations have to be balanced because of this law. 

What is Law of Conservation of Mass?

500

List at least 3 groups on the periodic table. 

What is alkali metals, alkali earth metals, transition metals, noble gases, halogens, lanthanides, and actinades?

500

List at least 3 signs of a chemical change that we have not mentioned yet. 

What is effervescence, gas production, light production, change in temperature?

500

Why is mass not conserved in this equation?

P4O10 + H20 → H3PO4

What is there are 4 P, 10 O, and 2 H atoms on the left side, and 3 H, 1 P, and 4 O atoms on the right side. 

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