Answer:
A
Step-by-step explanation:
has 2 oxygens for every carbon.
will contribute one of each for every molecule. You then have to have an even multiple of
molecules to not end up with an odd number of oxygens.
So if you take
, you should end up with 2 carbons on the RHS.
then has 4 oxygens. 2 of them are already accounted for, so you just need one
to balance out the reaction.
Answer:
The first one is supplementary
The second one is complementary
The third one is vertical
Step-by-step explanation:
Answer: There are 25 ways to select two members.
Step-by-step explanation:
Since we have given that
S={E,F,G,H,J}
Number of elements = 5
We need to select two members from S allowing the repetition.
We will use "Fundamental theorem of counting":
There are 5 choices for the first member.
There are 5 choices for the second member.
So, Number of ways would be
Hence, there are 25 ways to select two members.