Answer:
I think your answer is D.
{sorry if I'm wrong}
1 km an hour
Explanation:
i mean its pretty easy like you said if at 4 hours its traveled 4 km then its going 1 km an hour and at 10 its gone 10 km
2 C(s) + 3 H2(g) = C2H6(g)
orbital
electrons are found in an orbital
the answer is
2,1,1,1