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:TEMPERATURE
2.) Question: a mixture of baking powder, flour, sugar, and eggs is placed in the oven. Answer: TEMPERATURE
3.) Question: a large medicine tablet is crushed before being swallowed. Answer: SURFACE AREA
4.) Question: Enzymes in the small intestine act on food as it is being digested. Answer: CATALYSTS
5.) Question: bellows are used to fan a fire in a fireplace. Answer: SURFACE AREA
6.) Question: charcoal bricks are broken into smaller pieces before being placed I'm an outdoor grill. Answer: SURFACE AREA
7.) Question: a soft drink containing carbonic acid, which decomposes into carbon dioxide and water, is placed in the refrigerator. Answer: CONCENTRATION
Let's check if these answers are correct:
1.) The reaction rate in this scenario is affected by temperature. Therefore, your answer of "temperature" is correct.
2.) The reaction rate in an oven is indeed influenced by temperature. So, your answer of "temperature" is correct.
3.) The reaction rate of a large medicine tablet being crushed and swallowed is actually influenced by the surface area. Therefore, your answer of "surface area" is correct.
4.) Enzymes in the small intestine act as catalysts to speed up the digestion process. Hence, your answer of "catalysts" is correct.
5.) When bellows are used to fan a fire, it increases the airflow, which affects the reaction rate. However, the correct answer is "increased oxygen supply" rather than "surface area". So, this answer is not entirely correct.
6.) Breaking charcoal bricks into smaller pieces before placing them on an outdoor grill does increase the surface area in contact with oxygen, therefore affecting the reaction rate. Hence, your answer of "surface area" is correct.
7.) Carbonic acid decomposing into carbon dioxide and water in the refrigerator is affected by the concentration of the acid. Thus, your answer of "concentration" is correct.
In summary, answers 1, 2, 3, 4, 6, and 7 are correct. The only incorrect answer is number 5, which should be changed to "increased oxygen supply".
To check if these answers are correct, we need to understand what factors affect the reaction rate in each scenario. Let's analyze each question:
1.) In the first scenario, one antacid tablet is placed in a glass of cold water, while another tablet is placed in a glass of hot water. The correct answer is temperature. When the water is hot, the reaction rate will be faster due to the increased kinetic energy and collision frequency among particles.
2.) In the second scenario, a mixture of baking powder, flour, sugar, and eggs is placed in the oven. The correct answer is not temperature, but rather it is time. When the mixture is placed in the oven, it needs time to bake and undergo chemical reactions to form a finished product.
3.) In the third scenario, a large medicine tablet is crushed before being swallowed. The correct answer is surface area. By crushing the tablet, you increase its surface area, allowing for more contact with the digestive fluids and enhancing the rate of dissolution.
4.) In the fourth scenario, enzymes in the small intestine act on food as it is being digested. The correct answer is catalysts. Enzymes are biological catalysts that speed up chemical reactions without being consumed in the process.
5.) In the fifth scenario, bellows are used to fan a fire in a fireplace. The correct answer is not surface area, but rather it is airflow or oxygen supply. By using bellows to blow air onto the fire, you increase the oxygen supply, providing more fuel for combustion and enhancing the reaction rate.
6.) In the sixth scenario, charcoal bricks are broken into smaller pieces before being placed in an outdoor grill. The correct answer is surface area. Breaking the charcoal bricks into smaller pieces increases their surface area, which improves the availability of reactants and facilitates more efficient combustion.
7.) In the seventh scenario, a soft drink containing carbonic acid, which decomposes into carbon dioxide and water, is placed in the refrigerator. The correct answer is concentration. By placing the soft drink in the refrigerator, the decrease in temperature increases the solubility of carbon dioxide, resulting in a higher concentration of dissolved carbon dioxide and a faster decomposition reaction.
So, after analyzing each scenario, we find that the correct answers are:
1.) Temperature
2.) Time
3.) Surface area
4.) Catalysts
5.) Airflow/Oxygen supply
6.) Surface area
7.) Concentration