What are the primary colors of light and why are they called primary colors

How many grams of hcl is dissolved in 500 ml of a 0.2 m hcl solution?

What happened to the kinetic energy of the water particles when gina put the hot wrap on the the cold bottle

Which symbol can be used to indicate the pressure at which a chemical reaction is carried out? 25°C 2 atm Pt

Why must sample spots be above the solvent in paper chromatography

How many grams of O2 (g) are needed to completely burn 15.6 g of C3H8 (g) ?

In a popular classroom demonstration, solid sodium is added to liquid water and reacts to produce hydrogen gas and aqueous sodium hydroxide. part a write a balanced chemical equation for this reaction.

Calculate the vapor pressure lowering on an aqueous solution of glycerin that contains 180g of glycerin and 1000g of water at 25c. The vapor pressure of water at this temperature is 23.8torr.

Why does one Oxygen atom bond with two Hydrogen atoms to form water? Why don't they bond in a different ratio?

A fossilized bone contains about 65% of its original carbon-14. to the nearest hundred years, how old is the bone

Calculate the mass of 1.25 moles of Al2 (SO4) 3