How many moles of MgCl2 are there in 329g of the compound

Which electrons in a calcium atom in the ground state have the greatest effect on the chemical properties of calcium

What volume of silver metal will weigh exactly 2500.0g. The density of the silver is 10.5 g/cm3

How many neutrons are in cesium-135 (135/55Cs)

H2O is a single atom of wat true or false?

Of the elements pt v li and kr which is a nonmetal

You are preparing some solutions for your instructor and have been asked to prepare 3.00 L of a 0.250M sodium hydroxide solution. To make the solution, you should weigh out: A. 30.0 g NaOH and add 3.00 L of water to it. B. 75.

Which of the following contains maximum number of atoms? a) 2.0g hydrogen b) 2.0g oxygen c) 2.0g nitrogen d) 2.0g methane

Which of the following are likely to form an ionic bond? • copper atoms • hydrogen atoms • hydrogen and oxygen atoms • copper and fluorine atoms

How much heat is released if 7.15 g cao (s) is added to 152 g of h2o (l) ? cao (s) + h2o (l) → ca (oh) 2 (s) δh°rxn = - 64.8 kj/mol?

Why does water flow decrease in your shower when someone flushes the toilet