Yr8 Rearranging Atoms

• Chemistry
• Lower Secondary (Key Stage 3)

In a word equation, where are the final 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?

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

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