Vocabulary that Matters
Chemicals Don't Reason they React
Balancing Act
Who Dat?
Miscellaneous
100

These are found on the left side of the equation for a chemical reaction.

What are reactants?

100
In chemical reactions the -> symbol stands for this.
What is yields?
100
When the number of atoms are equal on both sides of the equation, this law has been fulfilled.
What is the Law of Conservation of Mass
100

If the products have less energy than the reactants, you have this type of reaction.

What is an exothermic reaction?

100
The diatomic elements are written with one of these in a chemical equation.
What is a subscript?
200
When the number of atoms is equal on each side we say that the equation is this.
What is balanced?
200

Two signs that a chemical reaction is taking place.

What is emitting light, heat, bubbles, new substances forming?

200
These are used to help balance chemical equations.
What are coefficients?
200

Cold packs are an example of this chemical reaction.

What is endothermic?

200

This is what you can change in a chemical equation.

What is the coeffient?

300
When an element occurs naturally with a subscript of 2 it is called this.
What is a diatomic element?
300
In the chemical reaction, Mg + O -> MgO, the compound MgO is located on this side of the equation.
What is the product side?
300
Balance the following chemical equation. You must show all work and simplify your answer. Fe + O2 --> Fe2O3
4 Fe + 3O2 --> 2Fe2O3
300

This type of reaction barely requires any energy to get it going.

What is a spontaneous reaction?

300
CsF is an example of this
What is a compound?
400

This chemical reaction has the products being hotter/containing more energy than the reactants.

What is endothermic?

400

This compound is added to a reaction to speed it up.

What is a catalyst?

400
Balance the following equation. You must show all work and simplify your answer! Li + Br2 --> LiBr
2Li + Br2 --> 2LiBr
400

Balance the following equation:

______ NO + ______ O2 yields _____ NO4


What is 2 NO + 3 O2 yields 2 NO4 ?

400

Give an example of an exothermic reaction.

What is a hot pack or anything that emits heat or light?

500

This is needed, along with direct contact, to make a reaction occur. It may be a lot or a little.

What is activation energy?

500

These 5 factors influence reaction rate.

What are concentration, catalyst, inhibitor, temperature, and surface area?

500
Balance the following equation. You must show all work and simplify your answer! C6H6 + O2 --> CO2 + H2O
2C6H6 + 15O2 --> 12CO2 + 6H2O
500

Please balance each equation:

Ca + S --> CaS

CH4 + O2 --> CO2 + H2O

Pb(NO3)2 + NaI --> NaNO3 + PbI2

Ca + S --> CaS 

CH4 + 2 O2 --> CO2 + 2 H2O,

Pb(NO3)2 + 2NaI --> 2NaNO3 + PbI2

500

Balance the following equation. Be sure to show all work and simplify your answer. 

(NH4)3PO4 + Mg(NO3)2 --> Mg3(PO4)2 + NH4NO3

2(NH4)3PO4 +3Mg(NO3)2 --> Mg3(PO4)2 + 6NH4NO3

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