Can someone check if these are right:
Tell the reaction rate
1.)Question: one antacid tablet is placed in a glass of cold water, while another table is placed in a glass of hot water. Answer: increasing TEMPERATURE
2.) Question: a mixture of baking powder, flour, sugar, and eggs is placed in the oven. Answer: Increasing TEMPERATURE
3.) Question: a large medicine tablet is crushed before being swallowed. Answer: decreasing SURFACE AREA
4.) Question: Enzymes in the small intestine act on food as it is being digested. Answer: decreasing CATALYSTS
5.) Question: bellows are used to fan a fire in a fireplace. Answer: increase SURFACE AREA
6.) Question: charcoal bricks are broken into smaller pieces before being placed I'm an outdoor grill. Answer: increase SURFACE AREA
7.) Question: a soft drink containing carbonic acid, which decomposes into carbon dioxide and water, is placed in the refrigerator. Answer: decreasing CONCENTRATION
4,5 are wrong. 7 is decreasing, temperature
To check if the given answers are correct, let's go through each situation:
1.) The reaction rate is affected by temperature. Increasing the temperature of a reaction generally increases the reaction rate. So, the answer "increasing TEMPERATURE" is correct.
2.) In the context of baking, the reaction rate is affected by temperature as well. Increasing the temperature speeds up the process of cooking or baking. Therefore, the answer "increasing TEMPERATURE" is correct.
3.) Crushing a tablet increases its surface area, which exposes more of the tablet to any solvents or chemicals it may react with. Increasing the surface area generally increases the reaction rate. Therefore, the answer "increasing SURFACE AREA" is incorrect. The correct answer should be "increasing SURFACE AREA."
4.) Enzymes in the small intestine act as catalysts to facilitate digestion. A catalyst increases the rate of a chemical reaction without being consumed by the reaction itself. Therefore, the answer "decreasing CATALYSTS" is incorrect. The correct answer should be "increasing CATALYSTS."
5.) Using bellows to fan a fire increases the oxygen supply to the fire, which increases the reaction rate of the combustion process. However, it's important to note that the surface area does not directly impact the reaction rate in this scenario. Therefore, the answer "increase SURFACE AREA" is incorrect. The correct answer should be "increasing OXYGEN SUPPLY" or "increasing AIRFLOW."
6.) Breaking charcoal bricks into smaller pieces increases their surface area. This exposes more surface area of the charcoal to oxygen when it is placed in an outdoor grill. Increasing the surface area generally increases the reaction rate. Therefore, the answer "increase SURFACE AREA" is correct.
7.) Placing a soft drink containing carbonic acid in the refrigerator decreases its temperature. In general, decreasing the temperature slows down chemical reactions, including the decomposition of carbonic acid into carbon dioxide and water. Therefore, the answer "decreasing CONCENTRATION" is incorrect. The correct answer should be "decreasing TEMPERATURE."
To summarize, the correct answers are:
1.) Increasing TEMPERATURE (correct)
2.) Increasing TEMPERATURE (correct)
3.) Increasing SURFACE AREA (incorrect, should be "increase SURFACE AREA")
4.) Increasing CATALYSTS (incorrect, should be "increasing CATALYSTS")
5.) Increasing OXYGEN SUPPLY or AIRFLOW (incorrect, not related to surface area)
6.) Increase SURFACE AREA (correct)
7.) Decreasing TEMPERATURE (incorrect, should be "decreasing TEMPERATURE")