The salinity of the baltic sea is about 10 ppt. what weight of salt is present in 2,000 g of its seawater?

  about 20 g

Step-by-step explanation:

Seawater has a salinity of about 3.5%, or 35 parts per thousand. Due to the inflow of fresh water in the Baltic Sea, it has a lower salinity, but it is still measured in parts per thousand, not parts per trillion (the other meaning of "ppt").

The weight of salt in 2 kg of water is expected to be

  (2×10^3 g) × (10×10^-3) = 20 g

Comment on PPT

The US National Institute of Standards and Technology (NIST) recommends against the use of quantifiers such as PPT, which are context- and country-dependent.

the answer is c)8

step-by-step explanaction:

the answer is (-4,-4)

hope this ! : d