How many moles of sodium are required to produce 40. grams of NaOH? *

2Na + 2H20 (arrow) 2NaOH + H2

.25 moles

.50 moles

1.0 mole

2.0 moles

What is the difference between a strong electrolyte and a weak electrolyte

Which scientist was responsible for discovering the neutron? A. Niels Bohr B. Robert Millikan C. James Chadwick D. Ernest Rutherford

Distilled water will A. change blue litmus paper to red. B. change red litmus paper to blue. C. not change red or blue litmus paper. D. cannot be tested using litmus paper.

Calculate the number of moles in 456 grams of lead, Pb

Consider the Zn (s) + Cu+2 (aq) + Zn+2 (aq) + Cu (s) system. Which element was the electron donor?

Most air pollution come from a) pollen b) forest fires c) volcanic eruptions d) burning fossil fuels

How many neutrons does a calcium 48 isotope have

Carbon disulfide burns in oxygen to yield carbon dioxide and sulfur dioxide according to the following chemical equation. CS2 (l) + 3O2 (g) → CO2 (g) + 2SO2 (g) a. If 1.00 mol CS2 reacts with 1.00 mol O2, identify the limiting reactant. b.

What is the meaning of monovalent?

What is a neutron and what charge does it have