Rate of Reaction

The following equation shows the reaction between calcium carbonate, CaCO₃ and hydrochloric acid, HCl:

CaCO_3(aq) + 2HCl_(aq) → CaCl_2(aq) + CO_{2 (g)­­} + H₂O_(l)

Which of the following is the suitable method to determine the rate of reaction?

• Change in the temperature of the solution with time

• Change in the volume of carbon dioxide gas with time

• Change in the mass of water with time

• Change in the concentration of hydrochloric acid with time

Tags

NGSS.HS-PS1-5

How is this equipment being used to measure the rate of reaction?

• The gas syringe measures how much gas is produced in a certain time

• The reaction mixture will increase in volume in a certain time

Tags

NGSS.HS-PS1-5

Which unit is correct for the rate of reaction?

• g mol^-1

• g min^-1

• mol dm^-3

• kJ mol^-1

Tags

NGSS.HS-PS1-5

Identify where the reaction has finished

• A

• B

• C

• D

Which of the following reactions occurs at the highest rate?

• Photosynthesis

• Rusting of iron

• Combustion of hydrogen in oxygen

• Combustion of magnesium in oxygen

Tags

NGSS.HS-PS1-5

Why don't all collisions between particles cause a reaction?

• the particles also need to collide with a catalyst

• not all the particles collide with enough energy

• not all the particles collide at a high enough temperature

• the particles need to collide with each other twice

Tags

NGSS.HS-PS1-5

Which of the following has the lowest rate of reaction?

• Combustion of ethanol

• Fermentation of glucose

• Oxidation of magnesium

• Precipitation of silver chloride

Tags

NGSS.HS-PS1-5

Which reactions has the highest rate of reaction?

• Rusting of water pipe

• Photosynthesis in green plant

• Burning of a small piece of charcoal in the air

• Formation of stalactites and stalagmites

Tags

NGSS.HS-PS1-5

Which graph shows the effect of increasing temperature on the rate of reaction of calcium carbonate with dilute hydrochloric acid?

• 
• 
• 
• 

Tags

NGSS.HS-PS1-5

Which factors affect the rate of a reaction?

• temperature

• pressure

• concentration

• catalyst

• All of the above

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6