Balancing Chemical Equations

Chemical Reactions

100

Reactants are found on the ________ side of the reaction.

What is left?

200

Where are the products located in a chemical reaction?

It is always located on the right side of the equation.

300

Identify the reactants and products in the following chemical equation: H₂ + NaCl ---> Na + HCl

Reactants: H, Na, Cl Products: H, Na, Cl

400

In the equation, 2H₂ + 1 Cl₂ --> 2 HCl what would the little 2 next to the H be called

What is subscript?

500

How many atoms does each element have in the following chemical equation before being balanced: NaOH + H₂CO₃ ---> Na₂CO₃ + H₂O *Note - All the little numbers are subscripts

Reactants - 1Na, 4O, 3H, 1C Product - 2Na, 1C, 4O, 2H

Random

100

By definition, the Law of Conservation of Mass states that matter (mass) may not be __________ nor _________ .

What is created / destroyed.

200

Is the following balanced or not? If it is not, what coefficients would you use?

2 HBr + 1 Na --> 2 NaBr + 1 H₂

What is no? What is 2:2:2:1?

300

_ HCl + _ Na --> _ NaCl + _ H₂

What is 2:2:2:1?

400

The mol to mol ratio for 

_H₂O-->_H₂+_O₂ is

What is 2:2:1?

500

Balance: _ MgO --> _ Mg + _ O₂

What is 2:2:1?

Balancing Chemical Equations

100

Balance the following equation: _____H₂ + ____O₂ ---> ____H₂O

2 H₂ + 1O₂ ---> 2H₂O

200

Balance the following Equation: _____KClO₃ ---> KCl + ______O₂

2KClO₃ ---> 2KCl + 3O₂

300

Balance the following equation: ____C₃H₈ + _____O₂ ---> ____CO₂ + ____H₂O

1C₃H₈ + 5O₂ ---> 3CO₂ + 4H₂O

400

Balance the following equation: ____P + _____O₂ --->_____P₂O₅

4P + 5O₂ ---> 2P₂O₅

500

Balance the following equation: ___NaBr + ____CaF₂ ---> ____NaF + ____CaBr₂

2NaBr + 1CaF₂ ---> 2NaF + 1CaBr₂

How to Balance Equations

100

What does it mean when you have a balanced chemical reaction?

What is your reactants will equal your products?

200

Which part of the chemical reaction are you able to change?

The Coefficients

300

Within a chemical formula, if you don't see a subscript, you can conclude that there are how many atoms of that element within each molecule.

One

400

The Law of Conversation states

What is matter can neither be created nor destroyed but transformed into another form?

500

What is one reason that we balance chemical equations?

To validate that the Law of Conservation of Mass is true.

Counting atoms

100

The atoms for Carbon, hydrogen and oxygen in the formula, C₆H₁₂O₆ is?

What is C=6, H=12, O=6?

200

The atoms for carbon dioxide are?

What is C=1, O=2 or CO₂?

300

How many atoms for N and H are  in NH₄

What is N=1, H=4?

400

The TOTAL amount of atoms in Sodium Chloride equal?

What is NaCl has 2 atoms total?

500

The TOTAL amount of atoms in Tin (II) chloride is

What is SnCl₂ has 3 atoms in total?