Chemistry, 02.04.2020 21:16, skatingby8910
Which of the following is true about the gas we call “air.” (the atmosphere)
a. composed mostly of the elements carbon and oxygen.
b. composed of molecules relatively far apart.
c. never contains water vapor.
d. all of the above
Answers: 2
Chemistry, 22.06.2019 14:30, emilymartinez75
Need ! asap will mark 10 pts using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. explain your answers
Answers: 1
Chemistry, 23.06.2019 01:00, carson9373
Wind and moving water provide energy. chemical mechanical thermal none of the above
Answers: 1
Chemistry, 23.06.2019 08:30, xojade
According to the passage, which of these is true about gray water systems? a) gray water systems use plants that require less water. eliminate b) gray water systems require the use of less fossil fuels. c) gray water systems reduce the amount of fresh water used. d) gray water systems reduce the amount water used by shower heads.
Answers: 1
Chemistry, 23.06.2019 15:30, kfull6027
The amount of iron in ore can be quantitatively determined by titrating a solution of the unknown with a standard solution of dichromate, cr2o72−. the net ionic equation is 6fe2+(aq)+cr2o72−(aq)+14h+(aq)→6fe3 +(aq)+2cr3+(aq)+7h2o(aq) part a the titration of 25.0 ml of an iron(ii) solution required 18.0 ml of a 0.230 m solution of dichromate to reach the equivalence point. what is the molarity of the iron(ii) solution?
Answers: 1
Which of the following is true about the gas we call “air.” (the atmosphere)
a. compose...
a. compose...
Mathematics, 31.07.2019 20:00
Mathematics, 31.07.2019 20:00