subject
Chemistry, 08.10.2020 01:01 tre1124

Unlike the atmosphere today, the atmosphere 3.5 billion years ago did not contain a. sunlight. c. gases. b. birds. d. oxygen. Please select the best answer from the choices provided A B C D

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 22.06.2019 15:50
How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate
Answers: 1
question
Chemistry, 22.06.2019 19:50
Which sentence from holes contains an implied personality trait? stanley and his parents had tried to pretend that he was just going away to camp for a while, just like rich kids do. he'd just been in the wrong place at the wrong time. stanley felt somewhat dazed as the guard unlocked his handcuffs and led him off the bus. stanley nodded to show he understood
Answers: 3
question
Chemistry, 23.06.2019 06:30
Achemist is studying the following equilibirum, which has the given equilibrium constant at a certain temperature: 2 no(g) + cl2(g) < => 2 nocl(g) kp = 2 x 10^(-6)he fills a reaction vessel at this temperature with 13. atm of nitrogen monoxide gas and 12. atm of chlorine gas. use this data to answer the questions: a. can you predict the equilibrium pressure of noci, using only the tools available to you within aleks? y/nb. if you said yes, then enter the equilibrium pressure of nocl at right. round your answer to 1 significant digit.
Answers: 1
question
Chemistry, 23.06.2019 08:50
Reacting masses1 calcium carbonate breaks down on heating to produce calcium oxide and carbondioxide gas.caco3 + cao + co2a student heats 15 g of calcium carbonate strongly in a crucible.relative atomic masses (a): ca = 40, c = 12, o = 16.calculate the mass of calcium oxide produced by this reaction.(5 marks)
Answers: 3
You know the right answer?
Unlike the atmosphere today, the atmosphere 3.5 billion years ago did not contain a. sunlight. c. ga...
Questions
question
Mathematics, 23.12.2020 23:20
question
Biology, 23.12.2020 23:20
question
Mathematics, 23.12.2020 23:20
question
Mathematics, 23.12.2020 23:20
Questions on the website: 13722360