The volume of 400mL chlorine gas at 400mm Hg is decrease to 200mL at constant tempature. What is the new gas pressure?

In a single replacement reaction between 2.57 moles Aluminum and 3.59 moles of Hydrochloric acid, how many moles of Hydrogen can actually be produced

Identify properties of metals, metalloids, and nonmetals

Match these items. 1. an atom that has gained or lost electrons ion 2. produces OH - ions when added to water acid 3. produces H + ions when added to water base

Which instrument would be used to measure the mass of a small stone? I 1. graduated cylinder 2. Celsius thermometer 3. triple-beam balance 4. metric ruler

Suppose on an average day air contains 6.5 mg of carbon monoxide per 1000 m 3 3 of air. How many milligrams of carbon monoxide are in a room measuring 10 ft x 10 ft x 10 ft? (1m = 3.28 ft). Do not use scientific notation.

What fraction of carbon 14 remains in an animal frozen in a glacier 18000 years ago?

How do you convert the number of molecules of a substance to the number of moles? a. add Avogardo's number b. subtract Avogardo's number c. multiply Avogardo's number d. devide Avogardo's number

Give 3-5 pieces of evidence to support why cloning is bad.

Nitrogen combines with oxygen to form nitrogen monoxide (no) and nitrogen dioxide (no2). a sample of no consists of 1.14 g of oxygen and 1 g of nitrogen.

The modern periodic table reflects many improvements to Mendeleev's original table. If Mendeleev's table was incorrect, why is it still studied in chemistry classrooms today?