The reaction of aluminum with bromine is shown here. The equation for the reaction is

2 Al (s) + 3 Br2 (ℓ) n Al2Br6 (s)

1. What are the stoichiometric coefficients in this equation?

(a) 1, 3, 4 (b) 2, 3, 1 (c) 1, 6, 8 (d) 1, 1, 1

1. Take the reaction: NH3 + O2 + NO + H2O. In an experiment, 3.25g of NH3 are allowed to react with 8.12g of O. c. How many grams of NO are formed?

The volume of a weather balloon is 200.0 L and its internal pressure is 1.17 atm when it is launched at 20 °C. The balloon rises to an altitude in the stratosphere where its internal pressure is 63 mmHg and the temperature is 210 K.

Which secondary air pollutant is found mainly around cities and is formed from burning coal or oil, which releases a combination of soot, carbon monoxide, and sulfur dioxide?

Explain what conversion factors you would need to use to convert 35 miles to centimeters.

The atomic mass of an element is found of which of the following methods? A.) doubling the number of protons B.) identifying the number of protons C.) adding the number of protons and neutrons D.) adding the number of protons and electrons

The ksp of cobalt (ii) carbonate, coco3, is 1.0 * 10-10. calculate the solubility of this compound in g/l.

If crown b is more dense than crown a then which is pure gold

In an ecosystem, a population can be defined as A. all the individuals of a species that exist together at a given place and time. B. all individuals of a species born in a specified month in every region of the world. C.

How many grams of NH3 are needed to provide the same number of molecules as in 0.55 grams of SF6?

Round 129.752416 to the requested number of significant figure a. 3 significant figures c. 6 significant figures_22 b. 4 significant figures d. 7 significant figures