Select the correct answer
In an experiment, chemists heated a solid, red substance in a test tube. Vapors from the heated red substance condensed as a metallic liquid on
the side of the tube. The red substance eventually disappeared, leaving only the metallic liquid and producing a gas that escaped from the tube.
Which statement best describes what happened to the red substance in this experiment?
OA The experiment demonstrates the formation of plasma from the red substance.
B. The experiment demonstrates a physical property of the red substance.
OC The experiment shows that the red substance experienced a chemical change.
OD. The experiment shows that the red substance can be a solid, liquid, or gas.
CE. The experiment shows that the red substance is an element.
Answers: 3
Chemistry, 21.06.2019 23:00
What is the molecular formula for a compound that is 46.16% carbon, 5.16% hydrogen, and 48.68% fluorine? the molar mass of the compound is 156.12 g/mol
Answers: 2
Chemistry, 22.06.2019 13:00
In a copper wire, a temperature increase is the result of which of the following
Answers: 1
Chemistry, 22.06.2019 13:30
If the concentration of phosphate in the cytosol is 2.0 mm and the concentration of phosphate in the surrounding fluid is 0.1 mm, how could the cell increase the concentration of phosphate in the cytosol? a) passive transportb) diffusionc) active transportd) osmosise) facilitated diffusion
Answers: 3
Select the correct answer
In an experiment, chemists heated a solid, red substance in a test tube....
Mathematics, 21.04.2021 08:20
Spanish, 21.04.2021 08:20
History, 21.04.2021 08:20
Biology, 21.04.2021 08:20
Mathematics, 21.04.2021 08:20
Mathematics, 21.04.2021 08:30
Mathematics, 21.04.2021 08:30
Mathematics, 21.04.2021 08:30
Mathematics, 21.04.2021 08:30
Mathematics, 21.04.2021 08:30
Mathematics, 21.04.2021 08:30