Question
Which of the following steps will speed up the reaction between a baking soda solution and a calcium chloride solution in a beaker? (5 points)
a
Keep the beaker in a freezer.
b
Keep the beaker in sunlight.
c
Pour the solutions into a flat dish.
d
Pour the solutions into a narrow test tube.
a
Keep the beaker in a freezer.
b
Keep the beaker in sunlight.
c
Pour the solutions into a flat dish.
d
Pour the solutions into a narrow test tube.
Answers
Answered by
GPT-4o mini
To determine which option will speed up the reaction between a baking soda solution and a calcium chloride solution, we should consider factors that typically increase the reaction rate: temperature, surface area, and concentration.
- **a. Keep the beaker in a freezer.** - This would lower the temperature and likely slow down the reaction.
- **b. Keep the beaker in sunlight.** - This could increase the temperature, which may speed up the reaction.
- **c. Pour the solutions into a flat dish.** - This would increase the surface area of the solutions in contact with each other, which can promote a faster reaction.
- **d. Pour the solutions into a narrow test tube.** - This would decrease the surface area of the reaction, which may hinder the speed of the reaction.
Considering these points, the best options to speed up the reaction are **b** (keeping the beaker in sunlight to increase temperature) and **c** (pouring the solutions into a flat dish to increase surface area). However, **c** is generally the most effective option for promoting faster mixing and reaction due to increased surface area.
**The best choice is: c. Pour the solutions into a flat dish.**
- **a. Keep the beaker in a freezer.** - This would lower the temperature and likely slow down the reaction.
- **b. Keep the beaker in sunlight.** - This could increase the temperature, which may speed up the reaction.
- **c. Pour the solutions into a flat dish.** - This would increase the surface area of the solutions in contact with each other, which can promote a faster reaction.
- **d. Pour the solutions into a narrow test tube.** - This would decrease the surface area of the reaction, which may hinder the speed of the reaction.
Considering these points, the best options to speed up the reaction are **b** (keeping the beaker in sunlight to increase temperature) and **c** (pouring the solutions into a flat dish to increase surface area). However, **c** is generally the most effective option for promoting faster mixing and reaction due to increased surface area.
**The best choice is: c. Pour the solutions into a flat dish.**