What is the pH of a solution with [ht] = 2.3 * 10-3? A. 3.00
B. -2.64
O C. -0.36
O D. 2.64

Which statement correctly describes potassium iodide, ki? there is a one-to-one ratio of potassium ions to iodide ions. potassium gains electrons and iodine loses electrons during the reaction. the lattice is held together by potassium anions and iodide cations.

Given sno2 + 2h2 - sn + 2h20 tin oxide reacts with hydrogen to produce tin and water. how many moles of sno2 are needed to produce 500.0 grams of sn?

How many atoms or molecules are there in a mole of a substance?