Chemistry, 04.02.2021 21:10 morenodonaldo762
ASAPPP HELPPP
Oxygen in Earth's early atmosphere was first produced during the Precambrian from
A)
cyanobacteria in Earth's oceans
B)
volcanic activity along plate boundaries
C)
the absorption of sunlight by plants
D)
evaporation of ocean water
Answers: 2
Chemistry, 22.06.2019 10:00
The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) β co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) β co2(g) k=1.363Γ10^69 b. 2 h2(g) + o2(g) β 2 h2o(g) k=1.389Γ10^80 c. 2co(g) + o2 (g) β 2 co2(g) k=1.477Γ10^90
Answers: 1
Chemistry, 22.06.2019 23:30
Why do oxygen have a strong attractive force for electrons
Answers: 2
Chemistry, 23.06.2019 07:30
Assignment directions: pick one of the following chemists and perform a bit of research on him/her. answer the following questions. alice hamilton βββββ βββββ rosalind franklin marie curie βββββ βββββ gertrude b. elion ada yonath βββββ βββββ henry cavendish robert boyle βββββ βββββ antoine lavoisier mario j. molina βββββ βββββ svante arrhenius
Answers: 1
Chemistry, 23.06.2019 12:30
The equilibrium constant kc for the reaction 2 nocl(g) β 2 no(g) + cl2(g) is 0.453 at a certain temperature. a mixture of nocl, no, and cl2 with concentrations 1.30, 1.20, and 0.600 m, respectively, was introduced into a container at this temperature. which of the following is true? 1. no apparent reaction takes place. 2. [cl2] = 0.30 m at equilibrium. 3. nocl(g) is produced until equilibrium is reached. 4. [nocl] = [no] = [cl2] at equilibrium. 5. cl2(g) is produced until equilibrium is
Answers: 3
ASAPPP HELPPP
Oxygen in Earth's early atmosphere was first produced during the Precambrian from
Social Studies, 14.12.2021 01:00
Mathematics, 14.12.2021 01:00
Health, 14.12.2021 01:00
Mathematics, 14.12.2021 01:00
English, 14.12.2021 01:00
Social Studies, 14.12.2021 01:00
Chemistry, 14.12.2021 01:00
Arts, 14.12.2021 01:00
Mathematics, 14.12.2021 01:00
SAT, 14.12.2021 01:00
Mathematics, 14.12.2021 01:00
Arts, 14.12.2021 01:00
Mathematics, 14.12.2021 01:00
Business, 14.12.2021 01:00
Mathematics, 14.12.2021 01:00