How many grams of chlorine must be added to a balloon containing 8.00 grams of helium to double its volume?

A. 4 grams

B. 79 grams

C. 8 grams

D. 16 grams

E. 2 grams

What is glucose element look like?

What are examples for solution

Which of the following relationships concerning solute and solvent are false? A. like dissolves like B. ionic dissolves in polar C. polar dissolves in polar D. nonpolar dissolves in polar

Which of the following is true about a scientific theory? a. a theory is a proposed explanation for a hypothesis b. a theory can be changed to explain new observations or experimental results c. a theory can be formed after a single experiment d.

In a chemical change, the substance that you end up with is the A. Reactant B. Product C. Displacement element D. Exchange element

Calcium's atomic number is 20. it forms ions with 18 electrons. what is the electrical charge of a calcium ion?

The doldrums region on Earth is created by an amount of heating from the Sun that results in the rising of warm, moist air, low air pressure, cloudiness, high humidity, and numerous forms of severe weather, such as thunderstorms.

If a certain gas occupies a volume of 19 L when the applied pressure is 9.5 atm, find the pressure when the gas occupies a volume of 4.8 L

What is a type of force that will change an objects motion

A flask contains 4.4g of carbon dioxide gas. calculate how many moles CO2 gas does it contains?