How many miles in 12000 yards? There are 5280 ft/mi and 3 ft/yd.

A student boils 9.43 grams of an unknown substance into vapor. If completely vaporizing the substance required 8,720 joules of energy, what is the heat of vaporization?

How do I write a balanced chemical equation for the dissolution of Ca (OH) 2 (s) in pure water?

Plants use sunlight to make food. Sally's father told her that if plants were placed inside, away from a window, they would bend and grow toward the light. Sally did not believe her father so she took some flowering plants inside in flower pots.

If a gas has an initial pressure of 101kPa and a volume of 10L, then it expands to a volume of 20L what is the new pressure?

El vinagre es una suspensión?

Identify whether each compound will ionize or dissociate in water. Sodium sulfate (Na2SO4) Ammonium phosphate ((NH4) 3PO4) Sulfuric acid (H2SO4) Potassium iodide (KI)

The equation below shows hydrogen reacting with oxygen to produce water. 2H2+O2>2H2O if 16mol of oxygen were reacted with excess hydrogen gas, how many moles of water would be produced?

The density of a metal is 9.80 g/mL. What is the mass of a sample of metal when dropped in 28.9 mL of water, the volume increases to 56.4 mL?

Does sound travel best through solids, liquids, or gases?

Which term refers to the number of molecules or atoms that participate as reactants in an elementary step in a chemical reaction? molecularity particulates reactants submolecular