Which of the following gases will have the slowest rate of effusion?

water vapor (M = 18 g/mol)

oxygen gas (M = 32 g/mol)

hydrogen gas (M = 2.0 g/mol)

carbon dioxide (M = 44 g/mol)

The analysis of a compound gives the following percent composition by mass: C: 52.14 percent; H: 9.946 percent; S: 12.66 percent; O: 25.26 percent. What is its molecular formula given that its molar mass is 253.4 g?

How can rice and flour mixture could be separated?

2. All of the following are true regarding alcoholic fermentation, except that alcoholic fermentation A. produces ethanol. B. uses glycolysis. C. does not require oxygen. D. produces as much energy as cell respiration.

The generic empirical formula for an organic compound containing oxygen can be written as CHO, For such a compound which is, by mass percentage, 51.72% carbon, 41.34% oxygen and 6.945% hydrogen, determine the whole number values for x, y & z.

Look at the chemical formula for glucose, how many carbon C, hydrogen H, and oxygen O, atoms are found in a molecule of glucose?

What are the two main systems we use for describing acids and bases?

Why do polar covalent bonds form?

What are some conditions that might control deposition

What are four basics states of matter

For beta radiation, what stops its penetrating abilities? aluminum a piece of paper skin thin fabric