What differentiates one element from another

Which of these is an element? A. Oxygen B. Sodium Chloride C. Water D. Air

Which element has a higher ionization energy? chlorine or bromine

Which is an example of a heterogeneous catalyst? A amylase B catalytic converter C food preservatives D amino acids

The following reaction is at equilibrium. What would be the effect of adding an excess of N2 and O2? N2 + O2 ↔ 2NO Question 16 options: The equilibrium will shift to the right. The equilibrium will shift to the left. Less product will be produced.

In a solution, the solvent In a solution, the solvent can be a liquid or gas. A. is the substance present in the smallest concentration. B. can be a solid, liquid, or gas. C. is a liquid. D. is never a solid.

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda