Which of the following has the greatest mass?

a. 1 mole of uranium (U)

b. 1 mole of oxygen (O)

c. 1 mole of sodium (Na)

.1 mole of chlorine (Cl)

What is the molarity of the two solutions 0.150 mol of NaOH in 1.80 L of solution

Define and explain bond energy.

The valence electrons of representative ("a" groups) elements are

if water absorbs 0.779j and has a mass of 0.4866g, how much would its temperature go up? a) 0.383 C b) 7.458 C c) 0.137 C d) 0.233 C

what is an empirical formulaWhat is the percent composition by mass of nitrogen in (NH4) 2CO3 (gram-formula mass = 96.0 g/mol) ?

Explain why gas is condensed when they're cooled

Rutherford's famous gold foil experiments shot heavy particles at a thin sheet of gold foil. What did he observe, and why did these observations eventually result in the addition of a nucleus to the atomic model?

In the Periodic Table, what is the relationship between two elements that are placed side-by-side in a row? A. The element on the left has one more electron. B. The element on the left has one more proton. C.

What are two traits of pseudoscience

What will happen if an electric current is flowing through a cord and a magnet is brought near the cord?