How many moles of each element are in one mole of (NH4)2S? A) 2 moles of nitrogen, 6 moles of hydrogen, 1 mole of sulfur
B) 1 mole of nitrogen, 8 moles of hydrogen, 1 mole of sulfur
C) 2 moles of nitrogen, 8 moles of hydrogen, 1 mole of sulfur
D) 1 mole of nitrogen, 6 moles of hydrogen, 1 mole of sulfur

Will report those who have random answers, so don't think you can just get free points.

In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 5.35 mol fe and 7.65 mol nio(oh) react?

Oxidation-reduction reactions (often called "redox" for short) are reactions that involve the transfer of electrons from one species to another. oxidation states, or oxidation numbers, allow chemists to keep track of these electron transfers. in general, one element will lose electrons (oxidation), with the result that it will increase in oxidation number, and another element will gain electrons (reduction), thereby decreasing in oxidation number. the species that is oxidized is called the reducing agent or reductant. the species that is reduced is called the oxidizing agent or oxidant. to sum up: oxidation = increase in oxidation state = loss of electrons = reducing agent reduction = decrease in oxidation state = gain of electrons = oxidizing agent part a which element is oxidized in this reaction? fe2o3+3co→2fe+3co2 enter the elemental symbol. view available hint(s) is oxidized part b which element is reduced in this reaction? 2hcl+2kmno4+3h2c2o4→6co2+2mno2+2kcl +4h2o enter the elemental symbol. view available hint(s) is reduced

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate