You add two substances together in a sealed bag and a chemical reaction happens. The mass before the reaction was 167 g. What was the mass after the reaction? Why?

Mountains that begin when molten material reaches Earth's surface through a weak area of crust are fault-blocked mountains.

What is the value of the standard enthalpy of formation of an element in its most stable form?

Where can you find the information needed to change grams of a substance to moles? A. coefficients B. oxidation numbers C. electronegativity values D. periodic table E. diagonal rule

On a hot summer day, water droplets often form on the outside of a cold glass. the water droplets form when water vapor in the air

A mixture of benzoic acid and naphthalene was dissolved in tert-butyl methyl ether and the resulting solution was extracted with aqueous sodium bicarbonate. The major organic species (excluding solvent) that is present in the lower layer is?

What are the monomers of proteins called

What type of fermentation occurs in yeast?

How much energy is required to vaporize 0.5kg of water?

Can u give me uses of sodium

Why are the internal structures of these limbs similar?