Which number in a chemical formula tells you how many atoms of element you have

What makes salt an ionic compound?

What is the molecular weight of one mole of H2CO3? 29.018 62.0 62.026

How is measuring the volume of liquids different than measuring the volume of regular-shaped solids?

The rate of sulfur formation in the reaction of sodium thiosulphate with nitric acid: a. Does not change with increasing concentration of sodium thiosulfate b. Increases with increasing concentration of sodium thiosulfate c.

Select the set of quantum numbers that represents each electron in a ground‑state Be atom. n = 2,? = 0, m? = 0, m s = - 1 2 n = 1,? = 0, m? = 0, m s = + 1 2 n = 2,? = 0, m? = 0, m s = + 1 2 n = 2,? = 1, m? = 0, m s = - 1 2 n = 1,? = 0, m?

Can an organism carry out cellular respiration without photosynthesis?

Predict the product for PtCl4 + F2

Calculate the formula mass of ethanol, c2h5oh. express your answer to three significant figures and include the appropriate units.

What are the four classifications of matter? of those four, which two are pure substances?

Which relationship or statement best describes delta s for the following reaction: 2H2S (g) + 3O2 (g) - -> 2H2O (g) a) Delta S = 0 b) Delta S < 0 c) Delta S> 0 d) Delta S = Delta H |T e) More information is needed to make a reasonable prediction.