Normal cellular pH has a hydrogen concentration of 3.98 x 10-8 M. what is the pH of a cell

Which of the following absorption methods is a very slow and ineffective? A. injection method B. inhalation method C. skin contact method D. ingestion method

What is the area of a rectangle that has a base of 6 cm and a height of 18 cm?

19 The coefficients in a balanced chemical equation represent (l) the mass ratios of the substances in the reaction (2) the mole ratios of the substances in the reaction (3) the total number of electrons in the reaction (4) the total number of

Because rusting is a spontaneous process under standard conditions, which of the following is a correct conclusion about the process

Reactions that absorb thermal energy are called blank reactions

Blanking and Punching size:A compound die will be used to blank and punch a large washer out of 6061ST aluminum alloy sheet stock 3.80 mm thick. The outside diameter of the washer is 60.0 mm and the inside diameter is 28.0 mm.

Whats the difference between china and Europe

Iodine pentafluoride gas reacts with iodine fluoride gas producing iodine heptafluoride gas and iodine gas. What is the maximum number of grams of iodine gas that can be produced from a reaction of 10.0 g of iodine pentafluoride with 11.

What evidence of a chemical reaction might you see in dropping an Alka-Seltzer tablet into a glass of water?

State hess's law. how is it used