Show:
Chemical Reactions
Chemical Reactions II
Chemical Reactions III
Chemical Reactions IV
Potpourri
100
One of the following is NOT a physical change: splitting wood, melting ice, burning wood or dissolving salt in water.
What is burning wood?
100

In the formula 5CaSO4, this is the number of oxygen atoms.

What is 20?

100

Substance(s) that enters a chemical reaction is called this (on the left side of the reaction).

What is a reactant?

100
A reaction that releases energy is called this.
What is exothermic?
100

My First name. 

What is Payton?

200
In a chemical reaction the substances to the right of the arrow are called this/these?
What is/are products?
200

DOUBLE JEOPARDY!!!!!!!!!!

C3H8 + O2 ->3CO2 + 4H2O is what type of chemical reaction?

What is combustion?
200
When two or more simple substances combine to form a new, more complex substance it is this type of reaction.
What is synthesis?
200

DOUBLE JEOPARDY!!!!!!!!!!!!!

A chemical reaction in which there is less energy in the end

what is exothermic?

200

What type of reaction is when a larger compound breaks down into smaller parts or single elements?

What is decomposition?

300

The number that describes how many molecules of a substance are involved in a chemical reaction.

What is a coefficient?

300

What are the two types of chemical reactions?

What is endothermic and exothermic?

300

DOUBLE JEOPARDY!!!!!!!!!

An expression in which symbols and formulas are used to represent a chemical reaction.

What is a chemical equation

300

During a chemical reaction, chemical bonds can be formed when electrons are shared, gained, lost, none, or all three.....

What is all three?

300

State the Law of Conservation of Mass.

What is that matter can not be created or destroyed in a chemical reaction?

400
When balancing an equation, this can not be changed.
What is a subscript?
400

Define diatomic

What is elements that are only naturally found as a molecule bonded to one other atom of itself.

400

What type of reaction produces more energy in the end?

What is endothermic?

400

The reaction 2HgO -> 2Hg + O2 is an example of this type of reaction.

What is decomposition?

400

DOUBLE JEOPARDY!!!!!!!!!!

A solid that forms from a solution during a chemical reaction.

What is a precipitate

500

DOUBLE JEOPARDY!!!!!!!! What type of reaction results in an increase in temperature? 

What is exothermic reaction?

500
What are the seven diatomic elements?
What is Iodine, Hydrogen, Nitrogen, Bromide, Oxygen, Chlorine, Florine. 
500

Balance the reaction: C3H8 +O2 -> CO2 + H20

What is C3H8 + 5O2 -> 3CO2 + 4H2O

500

Balance the reaction: Na + H2O -> NaOH + H2

What is 2Na + 2H2O -> 2NaOH + H2

500

Balance the reaction: HCl + Ca(OH)2 -> CaCl2 + H2O

What is 2HCl + Ca(OH)2 -> CaCl2 + 2H2O