Which of the following describes a compound? (hint: carbon and oxygen both appear on the periodic table.) a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom d. carbon and oxygen atoms mixed without being bonded together
Answers: 1
Chemistry, 22.06.2019 05:30, madisonrosamond99
Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?
Answers: 2
Chemistry, 22.06.2019 10:00, winstonbendariovvygn
Diffraction is when light is bent around obstructions. which of the these observation about clouds would indicate diffraction? a) after rain storms, you can sometimes see rainbows. b) clouds are white or gray and cannot be seen through. c) on a cloudy day, the temperature tends to be cooler than a sunny day. d) the edges of dark clouds appear lighter. this
Answers: 3
Chemistry, 22.06.2019 15:30, elizabethprasad2
The reactions of photosynthesis occur in the of plant cell? a. mitochondria. b. lysosomes. c. chloroplasts. d. chlorophyll
Answers: 1
Chemistry, 22.06.2019 15:50, Edwardwall
Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?
Answers: 1
Which of the following describes a compound? (hint: carbon and oxygen both appear on the periodic...
Chemistry, 23.03.2021 18:20
Mathematics, 23.03.2021 18:20
English, 23.03.2021 18:20
Mathematics, 23.03.2021 18:20
Mathematics, 23.03.2021 18:20
Mathematics, 23.03.2021 18:20