The periodic table below shows the state of matter of elements at standard temperature and pressure.

Based on the periodic table above, which of the following elements is a gas at standard temperature and pressure?

A.

K

B.

Ca

C.

Br

D.

Ar

Chemical Reaction Ca + S =

How many milliliters of c5h8 can be made from 366 ml c5h12

Which phrase describes a volcano that is not expected to erupt again? quiet volcano extinct volcano dormant volcano explosive volcano

Explain why the statement "The speed of light is 300 million m/s" is not always correct.

A covalent compound is formed when a chemical reaction occurs between atoms of

Which describes a precipitate in a chemical reaction? a a gaseous product formed from aqueous reactants b a solid reactant that forms aqueous product c a gaseous reactant that forms aqueous products d a solid product formed from aqueous reactants

Prepare a solution that is 0.1 M acetic acid and 0.1 M sodium acetate by measuring out 5.0 mL of the 1.0 M acetic acid solution and 5.0 mL of the 1.0 M sodium acetate solution in a 100 mL graduated cylinder, diluting the 10.

Which element has an ion that is smaller than an ion of calcium?

Which factor is responsible for the weak attraction between diatomic molecules of the halogens (group 7A) ? A) Hydrogen bonding B) Ionic bonding C) Dipole interactions D) London dispersion forces

Which is the correct equation for refractive index?