Chemistry, 07.09.2020 02:01, hayden6920
If a 4.79 g piece of aluminum with a temperature of 80.00 degrees C is dropped into 15.0 mL of water reaching a final temperature of 12.30 degrees C, what is the initial temperature of the water? C(aluminum)=0.8897 J/g degrees C Density of water = 1.00g/mL
Answers: 3
Chemistry, 21.06.2019 20:30, mvtthewisdead
If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared
Answers: 1
Chemistry, 22.06.2019 00:00, lilyclairehutson
Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.
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
If a 4.79 g piece of aluminum with a temperature of 80.00 degrees C is dropped into 15.0 mL of water...
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