How many moles of pb (no3) 2 are required if 8 moles of PbCl2

Which phrase describes the prime meridian

What is the name for the S2 - ion

7.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have a molar mass of 70. g/mol, is burned completely in excess oxygen, and the mass of the products carefully measured. 21.96 g of carbon dioxide and 8.

What shows how much potential energy is in the water stored in hoover dam?

Which of these is a mixture? A. Carbon Dioxide B. salt water C. calcium D. potassium

Which of the following statements is true? Selected Answer: D. At least two of the above statements (A-C) are true. Answers: A. Ions are formed by adding or removing protons or electrons. B. Scientists believe that solids are mostly open space. C.

Does anybody know which element from the periodic table that has 19 electrons and 24 neutrons, for atomic charge.

Given the following reaction 2Al + 3Cl2 - -> 2AlCl3 How many grams of AlCl3 aluminum chloride will be produced from 125 g of Al and 125 g of Cl2?

Potassium chlorate (used in fireworks, flares, and safety matches) forms oxygen and potassium chloride when heated. KClO3 (s) → KCl (s) + O2 (g) [unbalanced] What mass of oxygen gas is formed if 26.4 g of potassium chlorate decomposes completely?

Explain the iodine clock reaction.