Answer:
oxygen
Explanation:
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Questions:
1) Kinetic energy is the energy an object has due to its ________.
2) Kinetic energy can be calculated from what two measurements?
3) What is the standard unit of measurement for kinetic energy?
4) What would happen to the kinetic energy of an object if you doubled the mass?
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Answers:
1) Motion
2) Velocity and mass
3) Joule
4) The kinetic energy would double
A. Plum Pudding
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Answer:
6.85g/mol
Explanation:
According to the Graham's law of diffusion,the rate of diffusion is inversely proportional to the square root of molecular mass.
k=r√m.m
k=constant
r=rate of diffusion or effusion
m.m=molecular mass
taking ''1'' and '2" to be the two gases 1=oxygen,2=unknown gas
r1√m1=r2√m2,molar mass of oxygen=16
mathematically√m2=229√16/350
√m2=2.617
m2=6.85g/mol
Answer:
Explanation:
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In this case, since isotopes of the same element have the same number of protons and electrons but different atomic mass, we can compute the number of neutrons by subtracting the number of protons to the atomic mass of the isotope; thus, for Ga-69 and Ga-71 (rounded up to whole numbers), we obtain:
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