subject
Chemistry, 30.08.2019 09:30 emmaphillips2

44 given the balanced ionic equation:
3pb2+ + 2cr ==> 3pb + 2cr3+
what is the number of moles of electrons gained by 3.0 moles of lead ions?
(1) 5.0 mol (3) 3.0 mol
(2) 2.0 mol (4) 6.0mol
i know that the answer is 4 i just need an explanation of how

ansver
Answers: 1

Another question on Chemistry

question
Chemistry, 21.06.2019 22:30
Joseph has hypothesized that sound travels in waves. if he were following the scientific method, what should he do next? a. ask a question. b. test the hypothesis. c. study the results. d. tell other scientists about his hypothesis.
Answers: 1
question
Chemistry, 22.06.2019 12:30
In france, grapes are 1.95 euros per kilogram. what is the cost of grapes, in dollars per pound, if the exchange rate is 1.14 dollars/euro? (2.6)
Answers: 3
question
Chemistry, 23.06.2019 05:00
How many atomic mass units are equal to 1.672×10−24 g of protons?
Answers: 3
question
Chemistry, 23.06.2019 06:00
When hydrogen peroxide (h2o2) is added to potassium iodide (ki) solution, the hydrogen peroxide decomposes into water (h2o) and oxygen (o2). the chemical equation for the decomposition reaction is: 2h2o2—> 2h2o + o2. what is the role of the potassium iodide in this reaction? a. reactant. b. product. c. precipitate. d. catalyst.
Answers: 1
You know the right answer?
44 given the balanced ionic equation:
3pb2+ + 2cr ==> 3pb + 2cr3+
what is the numbe...
Questions
question
Mathematics, 01.04.2020 08:15
question
Geography, 01.04.2020 08:17
question
Mathematics, 01.04.2020 08:18
Questions on the website: 13722360