How many moles of magnesium are needed to react with 3.0 mol of O2?

2Mg (s) + O2 (g) → 2MgO (s)

What volume would 3 moles of hydrogen gas occupy at stp?

Which reaction is a decomposition reaction? A. 2KClO3 → 2KCl + 3O2 B. 4Na + O2 → 2Na2O C. ZnS + 3O2 → 2ZnO + 2SO2 D. 2NaBr + CaF2 → 2NaF + CaBr2

All BUT one substance would be involved with a neutralization reaction. That is a (n) A) acid. B) alcohol. C) salt. D) water.

By which process is a precipitate most easily separated from the liquid in which it is suspended

A person who is interested in the role of genetics in health might pursue a career in A) endocrinology B) gene therapy C) neuroscience D) sports medicine

Given 7.40 g of butanoic acid and excess ethanol, how many grams of ethyl butyrate would be synthesized, assuming a complete 100% yield?

Water droplets forming on the inside of a cold windshield is an example of Evaporation Conduction Vaporation Condensation

What is the mol of 1 5 x 10^26

Express the answer in scientific notation and with the correct number of significant figures: (6.32 x 10-4) : 12.64 Your answer should have the same number of significant figures as the starting measurement. 872.4 mm =

What are some facts about sea breeze