How do we find mass number of elements in chemistry?

Is the bond between Hydrogen and Chlorine ionic or covalent?

Is rubbing alcohol a mixture, compound or solutions?

If your unknow solid has an impurity that is insoluble in cyclohexane, will this impurity result in the molar mass of the unknown solid being recorded as high, low, or unaffected? Explain.

What are some indicators that a chemical reaction is occurring? Check all that apply.

What is the molar mass of mg3 (po4) 2, a substance formerly used in medicine as an antacid?

How many moles are in 4,55 X 10^23 molecules of CO2 (rounded)

In standardization of NaOH solution, a student found that 25.55cm3 of base neutralized exactly 21.35cm3 of 0.12M HCl. Find the molarity of the NaOH.

Which is a base unit in SI? A. centimeter B. kilogram C. gram D. grams/milliliter

The primary mechanism for converting atmospheric carbon into usable forms for life on earth is achieved by

For a particular collision, she detects the emitted products and find 15 protons, 2 antiprotons, 7 positrons, and 24 neutral particles. How many electrons are also emitted