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Science 10: Chemical Reactions and Properties

12 Questions

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Science 10: Chemical Reactions and Properties

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Questions and Answers

What is the product of the chemical reaction between nitrogen gas and hydrogen gas?

H2O

NH3 (correct)

What type of biomolecule would cause a person to gain more weight?

Protein

Nucleic acid

Fat (correct)

Carbohydrate

What is the total number of H atoms in the reactant side of the equation N2(g) + 3H2(g) → 2NH3(g)?

6 (correct)

What happens to the gas molecules when a gas confined in a closed container is heated?

They move faster Signup and view all the answers

What is the primary factor that determines an atom's ability to undergo chemical reactions?

Outermost electrons Signup and view all the answers

Why do tires blow out during long summer drives?

Because the volume of the gases increases as the temperature increases Signup and view all the answers

What is the result of increasing the temperature in a chemical reaction?

The reaction rate increases Signup and view all the answers

What is the purpose of adding coefficients in a chemical equation?

To balance the equation Signup and view all the answers

Why do reactions eventually stop?

One or more of the reactants has been used up Signup and view all the answers

Why can you still pump air into a balloon even though it is already inflated?

Because air molecules can be compressed Signup and view all the answers

What is the condition for the greatest reaction to occur between marble and hydrochloric acid?

1 g of powdered marble in 100 ml of hydrochloric acid at 30 °C Signup and view all the answers

What is the result of a double displacement reaction involving NaNO3 and KOH?

NaOH and KNO3 Signup and view all the answers