1. What is the mass of:

(1) 1 mol of N atoms

How is the half-life of a radioactive material useful for radioactive dating?

In the chemical reaction equation zn + 2HCL - - - > ZnCl2 + H2

How many grams of CuO would be required to produce 10.0 moles of nitrogen gas in the following chemical reaction? 2 NH3 (g) + 3 CuO (s) 3 Cu (s) + N2 (g) + 3 H2O (g)

At what speed does Earth move

What subatomic particles are found in the space surrounding an atoms nucleus. A. electrons B. ions and protons C. neutrons and electrons D. protons and neutrons

A very simple assumption for the specific heat of a crystalline solid is that each vibrational mode of the solid acts independently and is fully excited and thus cv=3NAkB=24.9 kJ / (kmol⋅K). This is called the law of Dulong and Petit.

How many elements are found in the following chemical equation? K + Cl → KCl A. 1 B. 2 C. 3 D. 0

How many liters of 0.85 M HCl solution would react completely with 3.5 moles Ca (OH) 2?

The specific heat of aluminum is 0.897 J/g•°C. Which equation would you use to calculate the amount of heat needed to raise the temperature of 0.75 g of aluminum from 7°C to 29°C? A. Q = 0.75 g x 0.897 J/g•°C x 22°C B. Q = 0.75 g x 0.

Carbon dating advisable for measuring materials ages for a few years, thousands of years, millions of years