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19 Nov 2019
A chemist combines 11 grams of sodium with 14 grams of chlorine to produce sodium chloride. After the reaction, the chemist finds that all the chlorine was used up by the reaction, but 2 grams of sodium remained. How many grams of sodium chloride were formed? For a neutral atom of magnesium-25, fill in the following: number of protons ___ number of neutrons ___ number of electrons ___ Finally, write the designation for this atom using the format: ^A_Z X^C What is the value of Avogadro's number? The name of the scientist who developed the Law of Conservation of Mass is: a. Robert Boyle. b. Antoine Lavoisier. c. Joseph Proust. d. John Dalton. Determine the number of moles in each of the following: 25.0 g of magnesium. 12 mg of gold.
A chemist combines 11 grams of sodium with 14 grams of chlorine to produce sodium chloride. After the reaction, the chemist finds that all the chlorine was used up by the reaction, but 2 grams of sodium remained. How many grams of sodium chloride were formed? For a neutral atom of magnesium-25, fill in the following: number of protons ___ number of neutrons ___ number of electrons ___ Finally, write the designation for this atom using the format: ^A_Z X^C What is the value of Avogadro's number? The name of the scientist who developed the Law of Conservation of Mass is: a. Robert Boyle. b. Antoine Lavoisier. c. Joseph Proust. d. John Dalton. Determine the number of moles in each of the following: 25.0 g of magnesium. 12 mg of gold.
Hubert KochLv2
29 Oct 2019