A number written in front of a chemical formula is a what?

Example 2: how many hydrogens are in c7h? n, which has 0 ring (s) and 2 double bond (s)

What kind of intermolecular forces act between two hydrogen fluoride molecules? Note: If there is more than one type of intermolecular force that acts, be sure to list them all, with a comma between the name of each force.

Why are viruses (specifically) so dangerous?

If the volume of a spherical ball is 113.04 cubic inches, what is the radius? 3 inches 9 inches 18 inches 27 inches

A drum used to transport crude oil has a volume of 162 L. How many grams of water, as steam, are required to fill the drum at 1.20 atm and 100°C?

Are nails in a jar with water a chemical change

What is the molarity of a solution composed of 4.73 g of potassium iodide (KI) dissolved in enough water to make 0.169 L of solution? Answer in units of M.

Suppose you were given a substance and asked to determine whether or not it was a plasma. Write the characteristics you would look for to identify the substance.

What is a comet? tell in a short and easy answer

In calcium fluoride, what is the closets noble gas that each ion becomes?