Answer: 1.7 g
Explanation: When it is filled with an unknown gas, the mass increases to 1.7 g.
I have the same question right now and i think that it is D
Answer:
a. 10.0 g
Explanation:
Hello.
In this case, for melting phase change, which is a physical change that allow the organized molecular arrangement of solid particles to spread and turn out into the spread molecular arrangement of liquids, we must take into account that the process is undergone by the entire mass then reaching the equilibrium (after some time).
Therefore as there ware 10.0 g of ice, then 10.0 g of liquid will remain after the melting process gets carried out, thus, answer is a. 10.0 g
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Best regards.
Answer:
Explanation:
The molecular mass of C2H6 is approximately 30 or [(2 x 12) + (6 x 1)]. Therefore the molecule is about 2.5 times as heavy as the 12C atom or about the same mass as the NO atom with a molecular mass of 30 or (14+16).
Answer:
Density measures the amount of mass per unit of volume in a substance. Concentration describes the amount of a substance dissolved in another substance. Changing the concentration of a solution changes the density of the solution.