Answer: i can understand it sorry
Explanation:
Sublimation is solid to a gas, during the process of sublimation energy is absorbed.
Answer:
(D)
Step-by-step explanation:
Two principles:
- The steps in a mechanism are elementary reactions, so the exponents in the rate laws are the coefficients in the steps.
- No reaction can go faster than its slowest step.
(D) R₂ ⟶ 2R (slow); rate = k[R₂]
(A) is <em>wrong</em>. rate = k[Q][R₂]. Reaction is 1st order in Q.
(B) is <em>wrong</em>. rate = k[Q]². Reaction is 2nd order in Q.
(C) is <em>wrong</em>. rate = k[Q][Z]. Reaction is 1st order in Q and 1st order in Z.
Metals are on the left side of the table and nonmetals are on the left with metalloids between them. And the noble gases are all in group 18 of the periodic table.