Year 10 Chemistry study

A + B -> AB is a basic form of what type of reaction?

Which of the following does not increase the rate of reaction

• Pressure increasing

• temperature increasing

• Catalyst

• volume increasing

which of the following is a balanced chemical equation?

• 4 H2 SiCl2 +2 H2O −−→ 2H8 Si4O4 +8 HCl

• 4 H2 SiCl2 +4 H2O −−→ H8 Si4O4 +8 HCl

• 4 H2 SiCl2 +8 H2O −−→ 2 H8 Si4O4 +8 HCl

• 3 H2 SiCl2 +2 H2O −−→ H8 Si4O4 +8 HCl

which of the following is a balanced chemical equation?

• 2 FeBr3 +3 H2 SO4 −−→ 3 Fe2 (SO4 ) 3 +6 HBr

• 2 FeBr3 +3 H2 SO4 −−→ Fe2 (SO4 ) 3 +6 HBr

• 2 FeBr3 +2 H2 SO4 −−→ 3 Fe2 (SO4 ) 3 +6 HBr

• 2 FeBr3 +6 H2 SO4 −−→ 4 Fe2 (SO4 ) 3 +6 HBr

fuel + excess Oxygen -->

• carbon dioxide and water

• carbon monoxide and water

• carbon dioxide and hydrogen gas

• carbon monoxide and hydrogen gas

Question 5 is an example of what type of reaction

in the equation AB + C --> AC + B, the reactants are found to the right or left of the arrow?

Photosynthesis reaction

• carbon dioxide + water --> Glucose + oxygen

• glucose + oxygen --> Carbon dioxide + water

• glucose + carbon dioxide --> oxygen + water

• water + oxygen --> carbon dioxide + glucose

the definition of a salt is

• anything that gives a salt flavour

• NaCl

• any metal and non metal

• any metal with chloride

exothermic reactions

• release heat and therefore heat is a reactant

• absorb heat and therefore heat is a reactant

• release heat and therefore heat is a product

• absorb heat and therefor heat is a product