Which of the following is NOT a chemical change? A. Tarnishing silver
B. Melting butter
C. Digesting food
D. Baking a cake

Temperature is _related to the average kinetic energy of a gas. inversely directly not disproportionally

If a straight-chain hydrocarbon is a gas at room temperature, how many carbon atoms will it have? a. 6 carbon atoms b. 12 carbon atoms c. 24 carbon atoms d. 3 carbon atoms

In what way do investigations build scientific knowledge? the results of investigations lead to questions that cannot be tested. they reflect the opinions and social values of scientists, ensuring valid information. the results of investigations lead to new questions, which lead to new investigations. they are not influenced by the research of earlier scientists, so they are able to address gaps in understanding. i