Answer: I think it’s B
explanation
Answer:
constant
Explanation:
A constant is a number with a fixed value in a specific mathematical context
Answer:
Ammonia, urea, uric acid
Explanation:
The given compounds are:-
Urea which has a molecular formula of
and has 2 atoms of nitrogen per molecule.
Ammonia which has a molecular formula of
and has 1 atom of nitrogen per molecule.
Uric acid which has a molecular formula of
and has 4 atoms of nitrogen per molecule.
Thus,
The order from least to most nitrogen is:-
Ammonia, urea, uric acid
19) it's not balanced because when adding h2 and o2 u get h2o2 not h2o
20) I'm not sure