Reactant a can participate in both of these reactions: 1) a + b c + d grxn = –15.6 kj 2) a + e f + g grxn = –20.5 kj reaction 1 has a much higher rate than reaction 2 under the same reaction conditions. explain this observation in terms of activation energy.

they are both synthetic elements

explanation:

d

what is the average time it took the car to travel 0.25 meters?

⇒ 2.23 seconds

what is the average time it took the car to travel 0.50 meters?

⇒ 3.13 seconds

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

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