Two atoms have the same number of protons but different number of neutrons. what can you conclude about these masses

How many moles are there in 45.0 grams of sulfuric acid, H2SO4? moles

How many moles are in 25 grams of water?

How chemical equations demonstrate conservation of mass?

What is the oxidation number of Mn in Ca (MnO4) 2

Vad är en fällningsreaktion?

How many molecules of molecular oxygen react with four molecules of NH3 to form four molecules of nitrogen monoxide and six molecules of water?

How many unchanged atoms would remain after 3 half-lives if the initial sample had 600 atoms? Explain.

Chegg Identify the type of reaction [ (combination (c), decomposition (d), combustion (co), single replacement (sr), double replacement (dr), or neutralization (n) ] and write a balanced equation. If there is no reaction, write NR.

A sample of a radioactive isotope initially contains 20 x 10^10 atoms. After 16 days, 5 x 10^10 atoms remain. what is the half-life of the isotope? A) 12 days B) 20 days C) 10 days D) 16 days E) 8 days

What happens to a hill due to wind blown sand