How many grams of solute must be in 2.0g of solution to have a concentration of 8.0ppm?

1) 0.004g
2) 0.008g
3) 4.0g
4) 0.016g

explain

Select the correct answer how does the heat content of the reaction change in the process of photosynthesis when a glucose molecule is formed? ca the value of is negative the value of qis positive the value of a remains constant the value of a decreases the value of equals zero e

Which statement is best described as a atom

In the cathode ray tube experiment, j. j. thomson passed an electric current through different gases inside a cathode ray tube in the presence of an electric field. in which two ways did this experiment change scientists’ understanding of the atom?