What is the atomic mass of chlorine if 75.77% has an atomic mass of 34.97 u and 24.23% has an atomic mass of 36.97 u?

What does velocity describe

How many molecules are in 2.50 moles of 02

A solid ice cube absorbs 151.7 J of energy as it warms from 0.00°C to 4.70°C. What is the mass of the ice cube? 74.7 g 351.2 g 15.9 g 65.5 g

What are two forms of friction that oppose the motion of a moving car

Identify factors that account for the high phosphoryl‑transfer potential of the nucleoside triphosphates, NTPs.

What is a good sentence for (pure) substance

Driving under the influence of the of an opiate is dangerous 1: they cause the user to feel they are in a safe place and not care about outside dangers 2: They cause you to become agitated and engage in the road rage 3: They can have the unreliable

If the lipid bilayer were to contain the K + channel protein, what would pass through the membrane if you added a 1 M solution of sodium chloride on the left side and a 1.

As the atomic numbers of the elements in column IIA increase, the size of the atoms generally increase stay the same cannot tellus decrease varies

How does newtons law explain why a book on a desk does not move