What is the mass of 1.56 x 1021 atoms of magnesium in grams?

Which substance is the oxidizing agent in this reaction? 2CuO+C→2Cu+CO2 Express your answer as a chemical formula.

What 3 atoms have eight valence electrons

A 0.229-g sample of an unknown monoprotic acid is titrated with 0.112 m naoh. the resulting titration curve is shown here. part a determine the molar mass of the acid. express your answer using two significant figures.

Griffin was walking to school one day and found a old bone. He took it to a scientist friend of his, and after studying the bone, she determined it was approximately 24,000 years old.

Which reaction results in only a physical change? A. 2H2O (l) + electricity ® 2H2 (g) + O2 (g) B. 2H2O2 (l) ® 2H2O (l) + O2 (g) C. 2H2 (g) + O2 (g) ® 2H2O (l) D. H2O (l) + heat ® H2O (g)

How can a gardener remedy soil that is overly basic.

Cocaine and amphetamines are both classified as

What is the formula for aluminum sulfate?

What is the chemical formula for calcium carbonate

Which statement applies to electronegativity? electronegativity increases as the size of atom increases. electronegativity decreases as the size of atom decreases. there is no correlation between electronegativity and atom size.