Why is nitrogen fixation necessary?

Differentiate concentrated acid from dilute acid.

When a person uses an iron to remove the wrinkles from a shirt, why does heat travel from the iron to the shirt?

Write a balance equation for the following. 1) Aqueous solution tin (II) chloride is added to sodium sulfide solution

What is the molar mass of Au2S

For the reaction 2H2O (g) ↽--⇀2H2 (g) + O2 (g) the equilibrium concentrations were found to be [H2O]=0.250 M, [H2]=0.300 M, and [O2]=0.750 M. What is the equilibrium constant for this reaction?

The atomic number of nitrogen is 7. The number of electrons a neutral nitrogen atom has is

Describe the charges of the subatomic particles by choosing the answer from the drop-down menu. Proton have a charge. Have a 0 charge. Electrons have a charge.

How did Alexander effect the people of Judah?

Is it possible for a molecule only made up of hydrogen and carbon to be polar?

Which of these represents a chemical change?