What is the relationship between a mole and Avogadro's number

Determine the number of atoms of each element in the empirical formula of a compound with the following composition: 68.75 percent C, 10.90 percent H, 20.35 percent O.

In the balanced reaction nh3 + h2o - nh3oh how many hydrogen atoms are gained in the reaction A) 3 B) 2 C) 5 D) 0

An experiment requires 42.5 g of sulfuric acid, which is easier to measure by volume than by mass what voliume should be measured out if the denstiy of the sulfuric acid is 1.84

Which compounds are electrolytes

In Flask A, you reacted 7.23 g Mg with 1.05 mol HCl. In Flask B, you reacted 1.22 g Mg with 1.35 mol HCl. Which balloon will inflate the most?

The density of water is 1.0 g/cm3 will rubbing alcohol float with a density of 0.81 g/cm3

Write an equation that shows the formation of the phosphide ion from a neutral phosphorus atom.

Which of the following terms is defined by the measure of mass per unit of volume? gravity density weight acceleration

Select the lon. O NO₂ H2SO4 O A3

True or False: A Solar eclipse occurs when Earth casts a shadow on the Moon.