Yr7 C3.2 Word equations

What happens when carbon burns in oxygen?

• It turns into iron.

• It reacts with oxygen to form carbon dioxide.

• It melts into a liquid.

What are the two elements that react to form carbon dioxide?

• Carbon and sulfur

• Carbon and oxygen

• Carbon and magnesium

What is a word equation?

• A sentence that describes chemical reactions.

• A simple way to represent chemical reactions using words instead of symbols.

• A mathematical formula used to balance reactions.

In a word equation, where are the reactants and products placed?

• Reactants on the right, products on the left

• Reactants on the left, products on the right

• Reactants and products are written randomly

What is the word equation for the reaction of iron and sulfur to make iron sulfide?

• iron + sulfur → iron sulfide

• iron + sulfur → iron sulfate

• iron + oxygen → iron oxide

What are the reactants in the reaction between carbon and oxygen?

• Carbon and oxygen

• Carbon dioxide and oxygen

• Carbon and carbon dioxide

What are the possible hazards when burning magnesium?

• The bright flame could damage eyesight

• The flame produces harmful smoke

• The flame releases toxic gas

What happens to atoms during a chemical reaction?

• Atoms get destroyed

• Atoms get rearranged

• Atoms lose their properties

What is the product when magnesium reacts with oxygen?

• Magnesium sulfide

• Magnesium oxide

• Magnesium chloride

What is the word equation for the reaction of sulfur with oxygen?

• sulfur + oxygen → sulfur dioxide

• sulfur + oxygen → sulfur oxide

• sulfur + oxygen → sulfur monoxide