Chemical Reactions Mr.P

Chemical Reactions

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?

200

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

What is/are products?

300

Name the Formula:

H₂O

What is a Dihydrogen monoxide?

400

When balancing an equation, these numbers can not be changed.

What is a subscript?

500

Give 2 examples that a chemical change has taken place.

What is temp. change, color change, odor change, formation of a precipitate, formation of a gas?

Chemical Reactions II

100

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

What is 20?

200

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

C₃H₈ + O₂ ----> 3CO₂ + 4H₂O + energy

What is this type of temperature chemical reaction.

What is combustion?

300

Is this a balanced chemical equation?:

H₂ + NaCl --> HCl + Na

What is no? There is 2 hydrogens on the reactant side and only 1 on the product side. 

400

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

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

a precipitate

500

What is the Formula for Carbonic Acid

What is a H₂CO₃?

Chemical Reactions III

100

The substances before the arrow (left) in a chemical reaction are called what?

What is a reactant?

200

What is the basic formula for a Decomposition reaction?

What is a AB -> A + B?

300

DOUBLE JEOPARDY!!!!!!!!!

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

A chemical equation

400

What is the name and charge for the polyatomic ion OH?

What is Hydroxide -1?

500

This reaction always results in the production of water, carbon dioxide, and energy

What is a Combustion Reaction?

Chemical Reactions IV

100

A reaction that releases energy is called this.

What is exothermic?

200

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

What is the name for the elements that always appear in pairs?

What is Diatomic?

300

What is Mr. Perkins favourite dinosaur?

What is the Hadrosaur?

400

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

What is decomposition?

500

Is this a balanced equation?: Na + H₂O --> NaOH + H₂

What is yes? There is 1 Sodium, 2 Hydrogen, and 1 Oxygen. 

Chemical Reactions V

100

This type of change occurs with a change in the properties of a substance that is usually reversible.

What is physical?

200

Balance the chemical equation:

K + B₂O₃ -> K₂O + B

What is?

6K + B₂O₃ -> 3K₂O + 2B

300

State the Law of Conservation of Mass.

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

400

What is a substance made up of two or more chemical elements combined?

What is a Compound?

500

Breaking down the chemical composition. Often times more products than reactants.

What is a Decomposing reaction?