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Chemical Reactions quiz

All 8 questions. After you submit, each question shows the right answer and why. Back to the quick check

ExplorerQuestion 1 of 8

What happens to atoms during a chemical reaction?

ExplorerQuestion 2 of 8

Ice melting into water is a chemical reaction.

InvestigatorQuestion 3 of 8

To balance a chemical equation, what are you allowed to change?

InvestigatorQuestion 4 of 8

Most chemical reactions go faster when they are colder.

ScientistQuestion 5 of 8

In the balanced equation 2N₂ + 5O₂ → 2N₂O₅, how many oxygen atoms are on each side?

ScientistQuestion 6 of 8

Which of these equations for hydrogen burning in oxygen to make water is correctly balanced?

AdvancedQuestion 7 of 8

In a sealed container, 16.04 g of methane reacts completely with 64.00 g of oxygen. What is the total mass of the products, in grams?

ExpertQuestion 8 of 8

Using collision theory, explain why raising the temperature usually increases a reaction's rate even though it barely changes how often particles collide in the right orientation.