What does the salinity of sea water represent? the concentration of salt dissolved in the ocean
A. the concentration of all

B. dissolved chemicals in the ocean

C. the volume of salt in the ocean

D. the mass of salt in the ocean

PLEASE GIVE ME THE RIGHT ANSWER!

Which of the following best supports the concept that genetic information is passed on to offspring from both of their parents, not just one?

Element before carbon on the periodic table

The zinc within a copper-plated penny dissolves in hydrochloric acid if the copper coating is filed down in several spots (so that the hydrochloric acid can reach the zinc). the reaction between the acid and the zinc 2h+(aq)+zn(s)→h2(g)+zn2+(aq) . when the zinc in a certain penny dissolves, the total volume of gas collected over water at 25 °c is 0.947 l at a total pressure of 743 mmhg . (vapor pressure of water is 23.78 mmhg at 25 °c .) what mass of hydrogen gas is collected? answer in appropriate significant figures