What is the mass percent of nitrogen in the dyeing agent, picric acid (C6H3N3O7) ? (The molar mass of C = 12.01, H = 1.0079, N = 14.01, and O = 16.00.)

For 2H2 + O2 → 2H2O: 4 moles of H2 will react with moles of O2 to produce moles of H2O

For questions #14 - 17, write an equation for the reaction of magnesium chloride and sodium oxide to produce magnesium oxide with sodium chloride. 14. Show the formulas of the reactants. 15. Show the formulas of the products. 16.

Determine the ammonia concentration of an aqueous solution that has a ph of 11.50. the equation for the dissociation of nh3 (k b = 1.8 Ã 10-5) is nh3 (aq) + h2o (l) â nh4 + (aq) + oh - (aq).

Explain the difference between a) constant and proportional error. b) absolute and relative error. c) population mean and sample mean d) quantitative and qualitative analysis in analytical measurement.

Melissa is interested in her family tree and how her family has changed over its many generations. Melissa probably more closely resembles

Which of the following is the correct name for the compound hgs? mercury sulfide mercury (i) sulfide mercury (ii) sulfide mercury monosulfide?

Which of these has the most impact on the apparent brightness of a star seen from Earth? Gravitational pull, temperature of star, distance from earth, earths orbital pattern

What are 6 abiotic factos from finding nemo?

Which of the following is an element? a. carbon monoxide gas (co) b. magnesium chloride salt (mgcl) c. hydrochloric acid (hcl) d. zinc metal (zn)

Describe the formation of an aqueous KI solution when KI dissolves in water