subject
Chemistry, 13.11.2020 21:50 jc2025

Did carbon dioxide levels in the atmosphere increase or decrease when sedimentary rocks and fossil fuels that contain carbon were formed??

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 22.06.2019 05:00
Which position represents spring in the southern hemisphere? a) b) c) d)
Answers: 2
question
Chemistry, 22.06.2019 14:30
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
question
Chemistry, 22.06.2019 15:30
Count the number of each type of atom in the equation below, and then balance the equation. write in the numbers of atoms and coefficients. add a 1 if there should be no coefficient. cs2(l) + o2(g) → co2(g) + so2(g) c [ ] s [ ] o > c [ ] s [ ] o [ ] cs2(l) + [ ] o2(g) > [ ] co2(g) + [ ] so2(g)
Answers: 3
question
Chemistry, 22.06.2019 17:00
Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.
Answers: 2
You know the right answer?
Did carbon dioxide levels in the atmosphere increase or decrease when sedimentary rocks and fossil f...
Questions
question
Social Studies, 12.07.2019 20:00
question
Mathematics, 12.07.2019 20:00
question
Mathematics, 12.07.2019 20:00
question
English, 12.07.2019 20:00
question
Mathematics, 12.07.2019 20:00
Questions on the website: 13722363