I think it is A. Harm
Scientists are trying to find chemicals that will be helpful to agriculture but which will not HARM the environment
Explanation:
T1/V1 = T2/V2
V2 = T2 x V1/T1
V2 = 296.15x535/319.15
V2 = 496.44mL
Answer:
A substance that can conduct electricity in solution
varying composition is not a property of a pure substance
B.
