Atoms. A 0.0106-mol sample of urea, NH 2CONH 2. contains
O a. 2.55 x 10 22 molecules.
Ob.5.10 x 10 22
O c. 2.55 10 23
O d. 1.06 x 10 24
atoms.
O4.6.02 10 23 molecules. .
atoms.

What is the molar mass of a gas that has density of 2.054 g/l

Which statement correctly identifies the scientific question and describes why the question is scientific? question 1 refers to the supernatural.question 2 reflects a moral or social value.question 3 refers to something that can be measured.question 4 reflects a question that can’t be observed.

A5 mole sample of liquid acetone is converted to a gas at 75.0°c. if 628 j are required to raise the temperature of the liquid to the boiling point, 15.600 kj are required to evaporate the liquid, and 712 j are required to raise the final temperature to 75.0°c, what is the total energy required for the conversion?