D.
A more accurate answer would be -50 m/s. 50 m/s is the change in speed.
The bond that exist between two oxygen atoms is
called a double covalent bond. This bond involves the sharing of four electrons
to obtain a more stable structure. This type of bond is much stronger than the
single covalent bond. They are much harder to break.
The maximum oxygen uptake is known as the VO2 max.
Most often, electrons are transferred from the metal atoms to the nonmetal atoms. Some other reactions are possible, such as the reaction between some metal cations and compounds of nonmetals, such as carbon monoxide, to form coordinate covalent bonds.
Answer:
C. L mol-1 s-1.
Explanation:
Hello,
In this case, a rate law has the following general form:

Whereas r accounts for the rate measured in M/s units, k is the rate constant whose units depends on the order of the reaction, C the concentration of the species in M units, contributing to the rate and x the order of the reaction.
In such a way, since in this case x equals two (second-order rate), the units of k turns out:

Which matches with C. L mol-1 s-1.
Best regards.