ᴴᵉˡˡᵒ ʰᵃⁿᵈˢᵒᵐᵉ ᶠᵒˡˡᵒʷ ᵗʰᵉ ˡⁱⁿᵏ ᵃⁿᵈ ᴵ ʷᵒᵘˡᵈⁿᵗ ˡᵉᵗ ʸᵒᵘ ᶠᵃˡˡ ᵃˢˡᵉᵉᵖ ᵗᵒⁿⁱᵍʰ
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Chemistry, 22.06.2019 09:00, lrasanaoaksandfurana
Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?
Answers: 1
Chemistry, 22.06.2019 14:30, joejoefofana
Consider the reduction reactions and their equilibrium constants. cu+(aq)+e−↽−−⇀cu(s)pb2+(aq)+2e−↽−−⇀ pb(s)fe3+(aq)+3e−↽−−⇀fe(=6.2×108=4. 0×10−5=9.3×10−3 cu + ( aq ) + e − ↽ − − ⇀ cu ( s ) k =6.2× 10 8 pb 2 + ( aq ) +2 e − ↽ − − ⇀ pb ( s ) k =4.0× 10 − 5 fe 3 + ( aq ) +3 e − ↽ − − ⇀ fe ( s ) k =9.3× 10 − 3 arrange these ions from strongest to weakest oxidizing agent.
Answers: 3
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