iron + sulfur --> iron sulfide

from that word equation, the reactant(s) is/are ....

when something burns, it reacts with the .... in the air

What happens in a chemical reaction?

In detecting chemical reactions, there are few clues we can look, except ...

. ........ is formed when iron reacts with oxygen in the air

from this experiment, we can conclude that rusting need

how can iron be protected?

The chemical symbol for magnesium is

The compound formed when magnesium reacts with oxygen is

acid + base -->

The product formed in a chemical reaction have different properties from the

magnesium + hydrochloric acid → magnesium chloride + hydrogen

What are the reactant in the first word equation above?

Choose the reactant!

zinc + sulfuric acid → zinc sulfate + hydrogen

Which reactant contains the element carbon?

Which one of the reactants contains the element oxygen?

Which of the following is a sign that a chemical reaction has occurred?

What characteristic defines all chemical changes?

sodium carbonate + hydrochloric acid → sodium chloride + water + carbon dioxide

Which product contains the element hydrogen?

Reacts with water to form a gas