A particle with 10 protons, 11 neutrons, and 12 electrons has a mass number of:

What can I draw or write about that's related to science?

What are the three ways in which an atom can form bonds with other atoms?

For an aqueous solution of hf, determine the van't hoff factor assuming 0% and 100% ionization, respectively. a solution is made by dissolving 0.0100 mol hf in enough water to make 1.00 l of solution.

The Ba (OH) 2 dissociates as Ba^ (+2) + 2 OH^ (-). H2SO4 dissociates as 2 H^ (+) + SO4^ (-2). Write a balanced equation for this reaction.

The pharmacy stocks a 90% w/v solution of drug 'w'. you need to prepare 200ml of a 5mg/ml solution for a patient. what volume of the stock solution will you need?

How many valence electrons are in atom of sulfur?

My sister needs this answered! Donald is creating an experiment to determine if fertilizer affects plant color. He makes this statement: "If each plant receives a different amount of fertilizer, then the plant's color intensity will change.

What would happen to life if earth were in a different location within the solar system

Substance that undergoes a change in a chemical reaction is a. a product c. a reactant. b. a chemical. d. an enzyme.

List the number of protons, neutrons, and electrons in Iodine-127. (atomic number is 53)