An aqueous solution has a mass of 490 grams

containing 8.5 103 gram of calcium ions. The

concentration of calcium ions in this solution is

(1) 4.3 ppm (3) 17 ppm

(2) 8.5 ppm (4) 34 ppm

When an atom of lithium loses an electron, the atom becomes a (1) negative ion with a radius smaller than the radius of the atom (2) negative ion with a radius larger than the radius of the atom (3) positive ion with a radius smaller than the radius

How many moles of carbon atoms are in 1 mole of carbon dioxide?

Polycarbonate plastic has density of 1.2g/cm cube

How many moles are in 12.3 grams of CO2

How do electricity and magnetism interact?

Ionic compounds can conduct electricity when dissolved in water or melted, because a. the ions are free to move. b. they have no ions to contribute to the solution. c. the ions are fixed in place. d. they have shared electrons.

What does the number next to the ion signify?

Write a molecular equation for the precipitation reaction potassium chloride and lead (II) acetate

Which outcome is not caused by gravitational force?

Explain the properties of the substance around us depend on the atoms and molecules that compose them