If a helium balloon has a volume of 8.5L assuming STP conditions, how many miles are there?

Which of the following best explains why electrolyte solutions conduct electricity? A. the presence of free-flowing electrons B. the presence of water C. the presence of free-flowing ions D. the presence of atoms

An atom in the ground state contains a total of 5 electrons 5 protons and 5 neutrons. Which Lewis electron-dot diagram represents this atom

1. Islands in the middle of the oceans (for example, Great Britain, Hawaii, Bermuda) tend to have more stable climates with smaller temperature fluctuations than regions of the same mass surrounded by land (for example, continents).

What do you get when you mix oxygen and chlorine

Why is it important to have the International System of Units?

A mixture of two compounds, a and b, was separated by extraction. after the compounds were dried, their masses were found to be: 105 mg of compound a and 91 mg of compound b. both compounds were recrystallized and weighed again.

What are the five types of chemical reactions?

Which chemical reaction do plants use to take carbon dioxide out of the air

What are the primary elements of the earths layres?

How long does it usually take fir a rock to undergo a stage within the rock cycle