Grade 9 · Chemistry
This quiz helps revise “Chemical reactions” in Chemistry for grade 9. It has 25 questions in five categories: Equation language, Reaction types, Redox, Energy and rate, Reactions in solution. Questions get harder as the points go up, from 100 to 500.
The 100- and 200-point questions are open here. The rest show only their first words, and there are no answers: all of that is in the game itself.
What are the substances written to the left of the arrow in a chemical equation called?
In Mg + 2HCl → MgCl2 + H2, which gas is produced?
What coefficient is placed…
In the gameWhen CaCO3 is heated…
In the gameWhat coefficient is placed…
In the game
Two substances form a single product. What type of reaction is this?
One compound breaks into two or more simpler substances. What type of reaction is this?
What is the acid-base…
In the gameWhat type of reaction…
In the gameWhat reaction type is…
In the gameWhat is the oxidation state of oxygen in H2O?
Zn → Zn2+ + 2e−. What is the loss of electrons called?
Cl2 + 2e− →…
In the gameWhat is the oxidation…
In the gameWhich reactant is the…
In the game
What is a reaction called when it releases heat to the surroundings?
What substance speeds a reaction without being consumed overall?
How does reaction rate…
In the gameWhy does a powdered…
In the gameWhat is the energy…
In the game
What is the insoluble solid product formed during a reaction in solution called?
Which gas is produced when a carbonate reacts with an acid?
What product forms in…
In the gameWhat are ions called…
In the gameIn a sealed vessel…
In the gameAll 25 questions and the answers are in the game. Invite your class or friends with a link — guests need no account.