What is the gram-formula mass of Fe (NO3) 3?

(1) 146 g/mol (3) 214 g/mol

(2) 194 g/mol (4) 242 g/mol

In a problem you are given two volumes and one pressure at a constant temperature and amount of gas. You are asked to find a second pressure. What law should you use?

Which rule for assigning oxidation numbers is correct? Hydrogen is usually - 1. Oxygen is usually - 2. A pure group 1 element is + 1. A monatomic ion is 0.

How many grams of magnesium oxide are needed to produce 264g of magnesium hydroxide

which term shows the correct way to write a scientific name? A. Carnivora B. Ursus arctos C. grizzly bear

The air in a hot-air balloon at 735 torr is heated from 22.0°C to 46.0°C. Assuming that the moles of air and the pressure remain constant, what is the density of the air at each temperature? (The average molar mass of air is 29.0 g/mol.)

A balloon containing 0.0400 mol of a gas with a volume of 500 mL was expanded to 1.00 L. Answer the questions and round answers to nearest hundredth place. Which equation should you use to find the amount of gas added?

Can quadrilateral RSTU be a parallelogram

Four moles of hydrogen chloride (HCl) gas react with one mole of oxygen (O2) gas to produce two moles of chlorine gas (Cl2) and two moles of water gas (H2O).

The density of rubbing alcohol is 0.785g/mL at 25 Celsius. Calculate the mass of 15.0 mL of the rubbing alcohol.

Is the universe an isolated system?