Hermatite is a naturally occurring mineral and a common form of iron one. The following statements describe physical and chemical changes occurring to hermatite. Which statement describes a chemical change

Acycloalkane molecule contains 8 carbon atoms. how many hydrogen atoms are present in the molecule?

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

Consider the following multistep reaction: a b→ab(slow) a ab→a2b(fast)−−−−−−−−−−−−−−−−− 2a b→a2b(overall) based on this mechanism, determine the rate law for the overall reaction. express your answer in standard masteringchemistry format. for example, if the rate law is k[a]3[b]2 type k*[a]^3*[b]^2