If a chemical reaction uses up energy the reaction is

What would be oil classification?

These three members of the Noble gas family (helium, neon, and argon) all have one property in common because they are gases at room temperature. That is they A) are combustible. B) are compressible. C) are relatively dense.

Iron atoms have been detected in the sun's outer atmosphere, some with many of their electrons stripped away.

The color an object appears to be is the color of light that it absorbs.

How many electrons are in a Cd3 + ion?

In the synthesis of barium carbonate from an alkali metal carbonate (M2CO3 where M is one of the alkali metals) a student generated 3.7 g of barium carbonate from 2.0 g of their alkali metal carbonate.

Give the state of matter that water is in as it moves through earths system

What happens to the volume of a substance as temperatures rises?

Find the total number of atoms in a sample of cocaine hydrochloride, c17h22clno4, of mass 22.5 mg.

What is the relationship between chemical equilibrium and the rates of forward and reverse reaction