Minnesota is one of the largest contributors of nitrogen to the Gulf.

a. True

b. False

How many moles of cobalt atoms are there in 6.00x10^9 Co atoms?

Can the nature of a reactant be altered to speed up reaction

What is the standard cell notation for a galvanic cell made with silver and nickel?

The number of moles of the reagent in excess can be used to calculate the moles of the products of the reaction. True False

Which one of the following ionic solids would have the largest lattice energy?! A) CaCl2 B) CaBr2 C) Csi D) NaCl E) NaF

A balloon is filled with 12L of air at a pressure of 2 atm. What is the volume of ballon if the pressure is changed to 3 atm?

What ionic bond occurs between what particles? A. Two Negative Ions B. A positive and negative ion C. Two positive ions D. Two neutral atoms

Which of the following are good traits of a hypothesis? it will be able to be tested it can predict an outcome it will explain the observations all of these

What is the mass of a box of nails

In a phase change of water between the liquid and the gas phases, 770.1 kJ of energy was released by the system. What was the product, and how much of it was formed in the phase change? (dа ta: H₂O (l) → H₂O (g) ΔH = 44.01 kJ/mol.) A.