Which of these is always equal to the molar mass of any element?

its atomic number

its atomic weight

its atomic formula

its atomic structure

Why is Avogadro's number referred to as a mole? If you could change this terminology, what would you change it to and why?

Is it easier to form a positive ion with an element that has a high ionization energy or element that has a low ionization energy? Explain.

The heat flow due to the mass motion of a fluid or gas is accomplished by

If a rock initially contained 10 milligrams of a radioactive substance when it first formed, how much remains after 4 half-lives?

A gas has a volume of 5 liters at 3 atm

What mass of potassium chlorate would contain 40grams of oxygen?

Identical forces act for the same length of time on two different masses. The change in momentum of the smaller mass is A) smaller than the change in momentum of the larger mass, but not zero. B) zero.

How many nuclei of 238 92 U 92 238 U remain in a rock if the activity registers 290 decays per second? (Note that the half life of Uranium-238 is 4.468x109 years)

A base can neutralize an acid. true or false

Hydrochloric acid (12.0 ml of 0.233 m) is added to 296.0 ml of 0.0579 m ba (oh) 2 solution. what is the concentration of the excess h + or oh - ions left in this solution?