Protons have about the same mass as:

A. electrons

B. neutrons

C. plasma particles

Stars can be classified into groups based on their a) size b) temperature c) proximity to earth d) proximity to the sun

Chemist determined by measurements that 0.015 moles of nickel participated in a chemical reaction. Calculate the mass of nickel that participated in the chemical reaction. Round your answer to 2 significant digits.

In Haber's process, 30 moles of hydrogen and 30 moles of nitrogen react to make ammonia. If the yield of the product is 50%, what is the mass of nitrogen remaining after the reaction?

Which of the following is NOT a possible end-product of a fermentation process? - glucose - carbon dioxide - lactic acid - ethanol

Find the mass, in grams, of 5.00*10^23 molecules of F2

I have 2 electrons is the first shell, 8 in the second, and 6 in the third

The production of plastics makes life, so it benefits society. On the other hand, the production of plastics causes air and water, so it also harms society.

The total number of moles represented by 20 grams of CaCO3 is

Particles of matter how have both potential and kinetic energy is that true or false?

Visible light waves are part of the blank Spectrum