Yr8 Rearranging Atoms

• Chemistry
• Lower Secondary (Key Stage 3)

In a word equation, where are the resulting substances typically located?

1. Top side
2. Bottom side
3. Left hand side
4. Right hand side

Where can you find the products in a word equation?

1. Right hand side
2. Bottom side
3. Left hand side
4. Top side

In a word equation, where are the reactants typically located?

1. Top side
2. Right hand side
3. Bottom side
4. Left hand side

What symbol is used in word equations to show a reaction has happened?

In the word equation
nitrogen + hydrogen -> ammonia
what are the reactants?

1. Oxygen
2. Nitrogen and hydrogen
3. Hydrogen and ammonia
4. Ammonia

From the word equation
sodium + chlorine -> sodium chloride
what is the product?

1. Sodium and chlorine
2. Sodium
3. Sodium chloride
4. Chlorine

What is the definition of a reactant?

In the word equation
magnesium + oxygen -> magnesium oxide
what is the product?

1. Magnesium oxide
2. Magnesium and oxygen
3. Oxygen
4. Magnesium

From the word equation
carbon dioxide + water -> glucose + oxygen
what are the products?

1. Water
2. Glucose and oxygen
3. Glucose and water
4. Carbon dioxide

In the word equation
hydrogen + oxygen -> water
what are the reactants?

1. Hydrogen and oxygen
2. Water
3. Carbon dioxide
4. Oxygen and water

What is the definition of a product?

What is the word equation for the reaction of sulfuric acid with calcium carbonate to form calcium sulfate, carbon dioxide, and water?

1. Sulfuric Acid + Calcium Carbonate -> Calcium Sulfate + Carbon Dioxide + Water
2. Sulfuric Acid + Calcium Carbonate -> Calcium Hydroxide + Carbon Dioxide + Water
3. Sulfuric Acid + Calcium Carbonate -> Calcium Sulfide + Carbon Dioxide + Water
4. Sulfuric Acid + Calcium Carbonate -> Calcium Sulfate + Carbon Monoxide + Water

What is the word equation for the reaction of hydrochloric acid with sodium hydroxide to form sodium chloride and water?

1. Hydrochloric Acid + Sodium Hydroxide -> Sodium Nitrate + Water
2. Hydrochloric Acid + Sodium Hydroxide -> Sodium Hydroxide + Water
3. Hydrochloric Acid + Sodium Hydroxide -> Sodium Chlorate + Water
4. Hydrochloric Acid + Sodium Hydroxide -> Sodium Chloride + Water

What is the word equation for the reaction between iron and oxygen to form iron oxide?

1. Iron + Oxygen -> Iron Hydroxide
2. Iron + Oxygen -> Iron Oxide
3. Iron + Oxygen -> Iron Sulfide
4. Iron + Oxygen -> Iron Nitrate

Write a word equation for this reaction -
Sulfur dioxide can be made by reacting sulfur with oxygen

Write a word equation for this reaction -
To make ethanol carbon dioxide can be mixed with hydrogen gas and heated in a reactor. Water is also formed in this reaction.

In a chemical reaction atoms are always _________________ to make new __________.

However the total number of atoms in the reactants must be _____________ the total number of ____________ in the products.

rearranged

reactants

atoms

less than

equal to 

products

more than