In this REDOX reaction shown here, which answer choice is the correct equation for the species that oxidized? Mg (s) + 2Ag(NO3) (aq) → Mg(NO3)2 (aq) + 2Ag (s)
O Mg + 2e → Mg+2
O Ag+1 → Agº + e
O Ag+1 + e
Ago
O MgO + Mg+2 + 2e

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car

How is electrolysis most commonly used to produce an energy source? a - splitting water molecules produces oxygen, which organisms breathe to fuel their bodies. b - splitting water molecules produces hydrogen gas, which is used to power machines through hydrogen fuel cells. c - splitting carbon dioxide molecules produces coal, a form of carbon that can be burned to produce heat. d - splitting carbon dioxide molecules produces natural gas, which can be burned to generate electricity in power plants.