Chemistry, 01.12.2021 09:20 jhenderson2024
Which of the following correctly lists the particles in order from least massive to most massive.
A. electron, proton, hydrogen atom, helium atom
B. proton, electron, hydrogen atom, helium atom
C. proton, helium atom, hydrogen atom, electron
D. hydrogen atom, electron, helium atom electron
Answers: 3
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Why do scientists look for patterns in the world? a. patterns can explain observations. b. patterns never change, no matter what. c. patterns are easy for scientists to detect. d. patterns are all the same, through all time.
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Explain what happens at the saturation point when adding salt to water at room temperature.
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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
Which of the following correctly lists the particles in order from least massive to most massive....
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