How many sodium ions are there in 85 g of sodium oxide?

Ascorbic acid, or vitamin c (c6h8o6, molar mass = 176 g/mol), is a naturally occurring organic compound with antioxidant properties. a healthy adult's daily requirement of vitamin c is 70-90 mg. a sweet lime contains 2.86*10-4 mol of ascorbic acid.

A salt is obtained as a reaction between a. a base and water. b. a base and an acid. c. an acid and oxygen. d. a nonmetal and a metal.

How many grams of hydrogen gas would be needed to form 8.0 grams of water

1. How much heat is required to vaporize 25 g of water at 100˚C?

Zinc metal reacts with hydrochloric acid, according to the chemical equation below. Zn (s) + 2 HCl (aq) → ZnCl2 (aq) + H2 (g) Tina added 0.146 mole of hydrochloric acid solution to 0.

The nucleus of an atom consists of a. neutrons and electrons. b. neutrons alone. c. protons and neutrons. d. protons and electrons.

What holds the two strands of a DNA molecule to each other?

1. Copper (__) is an element on the periodic table. CU (both letters capitalized) Cu (first letter capitalized) cU (second letter capitalized) cu (both letters lowercase)

Which concepts can be used to explain the difference in acidicty between ethanol and 2-fluoroethanol?

The diagram to the right is composed of carbon hydrogen and oxygen so is an example of a