A Helium Balloon contains 24.3 moles of Helium Gas. How many grams of Helium is this?

0.165 g

6.01 g

97.2 g

1.46 x 10^25 g

Clean bed linen placed in a resident's room but not used should be:

How quickly or slowly a substance heats or cools is measured by its

Chlorine has 7 electrons in its valence shell It accepts an electron to complete its acetate and becomes a chlorine ion which is the nature of this chlorine ion A. Cation B. Anion C. Metal ion

Which example involves a phase change in which heat energy is released by the substance

To neutralize gastric juices in your stomach, antacids contain what

Can somebody explain step by step how to solve decomposition reactions?

Which of the following statements are correct about the chemical reaction? H2 + O2 - > H2O2 versus 2 H2 + O2 - > 2 H2O? They are both balanced chemical equations. The two reactions are equivalent. The laws of thermodynamics apply to both.

What do chemists use to describe a chemical reaction

When you drop a sugar cube in a glass of water, at first the water doesn't taste sweet. Later, it tastes very sweet. Eventually, the water will taste equally sweet throughout. What term explains molecule movement to maintain a balance?

Using density what is the mass in grams of 150mL of a liquid with a density of 1.4 g/mL