2 NO(g) + O2(g) → 2 NO2(8) 24. Consider the following mechanism for the
reaction represented above.
Step 1: 2 NO NO, (fast reversible)
Step 2: N, O2 + O2 → 2 NO2 (slow)
Which of the following statements is true?

The approximate distance from earth to the moon is 240 thousand miles. the approximate distance from earth to the sun is 93 million miles. in standard notation, the approximate distance from the sun to earth is miles greater than the approximate distance from earth to the moon. in scientific notation, the distance is m × 10n, where m is and n is .

Two changes are described below. a green banana turns yellow and ripens. a layer of rust forms on an iron nail. which statement is true about the two changes? a) both are chemical changes because new substances are formed. b) both are physical changes because only the physical state of the substances change. c) a is a physical change due to a change of state, but b is a chemical change because new molecules are formed. d) a is a chemical change due to a change of state, but b is a physical change because new molecules are formed.

Which is an example of a mixture? a. water b. trail mix c. hydrogen d.carbon dioxide