Gastric acid pH can range from 1 to 4, and most of the acid is HCl.

For a sample of stomach acid that is 1.71×10−2 M in HCl, how many moles of HCl are in 13.1 mL of the stomach acid?

Express the amount to three significant figures and include the appropriate units.

im not exactly sure but i think its b!

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?

it is stable as it is in group 0 which have full outer shells of electrons

the answer is d.) potassium