What the different ways to increase the rate of a chemical reaction? (Check all that apply.)

Question

*
1 point
increasing the reactant concentration
decreasing the reactant concentration
increasing the catalyst concentration
decreasing the catalyst concentration
increasing the water concentration
decreasing the water concentration
increasing the temperature
decreasing the temperature
increasing the surface area
decreasing the surface area
Is this chemical reaction balanced?
Na + Cl2 ---> 2NaCl
1 point
Yes
No
How would you balance the chemical equation that creates water?
What are the correct ratio of coefficients?
__CH4 + __O2 ---> __CO2 + __H2O
1 point
1:1:1:1
2:2:2:2
1:2:1:2
2:1:2:1

Answer 1

To answer your questions:

1. Different ways to increase the rate of a chemical reaction (Check all that apply):

   • Increasing the reactant concentration: ✔️
   • Decreasing the reactant concentration: ❌
   • Increasing the catalyst concentration: ✔️
   • Decreasing the catalyst concentration: ❌
   • Increasing the water concentration: ✔️ (if water is a reactant)
   • Decreasing the water concentration: ❌
   • Increasing the temperature: ✔️
   • Decreasing the temperature: ❌
   • Increasing the surface area: ✔️
   • Decreasing the surface area: ❌

2. Is this chemical reaction balanced?

   • Na + Cl2 ---> 2NaCl
   • Yes: ✓ (There is 1 Na on each side and 2 Cl on each side.)

3. How would you balance the chemical equation that creates water?

   • The unbalanced equation is:
     __CH4 + __O2 ---> __CO2 + __H2O
   • The correct ratio of coefficients is:
     • 1:2:1:2: ✓ (Balanced: 1 CH4 + 2 O2 → 1 CO2 + 2 H2O)

So, your final answers are:

• To increase the rate of reaction: Increasing reactant concentration, increasing catalyst concentration, increasing water concentration, increasing temperature, and increasing surface area.
• The reaction Na + Cl2 ---> 2NaCl is balanced.
• The correct ratio of coefficients for the balanced equation is 1:2:1:2.