The atomic number of magnesium (Mg) is 12. This is also the number of which of the following?

Determine the mechanical energy of this object: a 1kg ball sits on a 10 meter high cliff a. 980j b. the ball isn't moving. so the mechanical energy is zero c. 98j d. 10j

The atomic number is the number of in an atom.

In which state of matter has least amount of kinetic energy A gas B liquid C plasma D solid

What is the theoretical yield of ammonia, in kilograms, that we can synthesize from 5.26 kg of h2 and 32.7 kg of n2?

For the reaction A+B↽--⇀C+D, assume that the standard change in free energy has a positive value. Changing the conditions of the reaction can alter the value of the change in free energy (ΔG).

How much ice at a temperature of - 17.5 ∘C must be dropped into the water so that the final temperature of the system will be 31.0 ∘C?

Why does a gas fill completely the vessel in which it is kept?

Individuals who work full time and those who work part-time enjoy basically the same number of paid leave benefits. True False

There is a large increase in ionization energy between the second and the third ionization energies of a metal. What kind of ion is the metal likely to form? Include the charge in your answer.

Which of the following are true statements about equilibrium systems? For the following reaction at equilibrium: CaCO3 (s) ⇌ CaO (s) + CO2 (g) adding more CaCO3 will shift the equilibrium to the right.