Which is NOT something plants need to survive?

Sunlight

Oxygen

Carbon dioxide

Water

Calculate the lattice energy for NaF (s) given the following sublimation of energy + 109 kj/mol Hf for F (g) + 77 kj/mol first ionization energy of Na (g) + 495 electron affinity of F (g) - 328 enthalpy of formation of NaF (s) - 570 kj/mol A.

A chemist measures the amount of fluorine gas produced during an experiment. He finds that 482. g of fluorine gas is produced. Calculate the number of moles of fluorine gas produced. Be sure your answer has the correct number of significant digits.

Given the balanced equation below, calculate the moles of aluminum that are needed to react completely with 17.5 moles of FeO? Show all work 2Al+3FeO->3Fe+Al2O3

A molecule of water (H2O) consists of two hydrogen atoms joined to one oxygen atom by single bonds, but the electrons are not shared equally between the oxygen and hydrogen atoms.

How many seconds are you in school every week?

Why do you think the transition metals are 10 columns wide?

What is released when a election returns to a lower state of energy

Which of the following elements has its highest energy electrons in an "s" atomic orbital? radiium (Ra) neon (Ne) aluminum (Al) lanthanum (La)

About how long does it take for the Sun to make one rotation on its axis?

Does a physical change affect the identity of a substance