How many moles of phosphorus are in 12.0 grams of phosphorus

This gas can be formed if a hydrogen bomb is detonated.

Match the following reactions with the reaction type. You may use each type more than once. 1) 2HgO (s) → 2Hg (l) + O2 (g) 2) KCl (aq) + AgNO3 (aq) → AgCl (s) + KNO3 (aq) 3) 2Na (s) + H2 (g) → 2NaH (s) 4) Mg (OH) 2 (aq) + 2HNO2 (aq) → Mg (NO2) 2

Give one example of a closed system

The molecular property related to the ease with which the electron density in a neutral atom or molecule can be distorted is called

Determine the total pressure of a mixture of 0.400 mole of He and 0.600 mole of Ne in a 2.00 liter container at 25oC.

What would be the total mass of the products of a reaction in which 25 grams of table salt decomposes into the elements sodium and chlorine?

The nucleus of a Helium atom has a charge equal to twice the proton's charge. Let FN denote the magnitude of the force the Helium nucleus exerts on one of the electrons in a Helium atom, and let Fe denote the magnitude of the force one electron in

What can you say about the past four decades?

Calculate the percent yield for the reaction above if 25.0 grams of H2SO4 was actually produced and the theoretical yield was predicted to be 42.0 grams. (% yield = Actual / theoretical x 100) SO3 (g) + H200 H2SO4 (9) O 59.5 O 168 O 0.595 O 1.68

Why does hot water freeze faster than cold water?