Which tool is used to measure mass?

A:ruler

B:balance

C:graduated cylinder

D:liquid thermometer

3.9 X 1022 molecules of CO2 = _ moles of CO2

Bases are commonly used as cleaning products because they can dissolve grease. true false

What is the definition of to squeeze a gas into a smaller space

How many moles of ions are in 1.80 mol of K2SO4?

If the pH of a solution is 2.7 what is the pOH

Several steps are involved in the industrial production of sulfuric acid. One step involves the oxidation of sulfur dioxide gas to form sulfur trioxide gas. A catalyst is used to increase the rate of production of sulfur trioxide gas.

All energy waves other than the visible light spectrum cannot be seen. true or false

Describe two important functions for carbon dioxide in the atmosphere.

In the chemical reaction: 2 h 2 (g) o2 (g) → 2 h2o (g), with 8 grams of h 2 (2 grams/mole) and 16 grams of o2 (32 grams/mole) and the reaction goes to completion, what is the excess reactant and how much of that would remain

What is the volume of a gold nugget that weighs 2.20 kg? The density of gold is 19.28 g/cc.