Solve (E. F and M. F.) (HONORS)

Determine the empirical formula of a compound that contains 5.82 g of Carbon, 7.74 g of Sulfur, and 1.44 g of Hydrogen.

Determine the empirical formula of an unknown compound that contains 3.85 g of Carbon, 1.12g of Hydrogen, 2.25 g of Nitrogen, and 10.28 g of Sulfur

Determine the molecular formula from the question above, knowing that the molar mass of the unknown is 329.31g/mol.

Solve (Limiting Reactant)

___HgBr + ___Cl2 -> ___HgCl2 + ___Br2

Identify the limiting reactant when 5.5 L of Cl2 is reacted with 89.5 g HgBr. How many grams of Br2 will be formed?

Iknow #2 is d. i just need to know why

The earth's moon is unusually large. two popular theories of the moon's origin include the "sister world" hypothesis, which states that the moon formed from the same materials as the earth, near enough to the earth that they fell into orbit around each other. a second theory is the "capture" hypothesis, in which the moon formed elsewhere in the solar system, and the earth's gravity pulled it into its orbit. studies of what the moon is made of indicate that some of its materials had to come from the earth or from the same area of the solar system where the earth had formed. at the same time, the moon does not contain much of the material that makes up the earth's core, so the moon could not have formed from the same materials as the earth. how do the two facts above affect the described theories of the moon's origin? a. they show that scientists will never agree on where the moon came from. b. they show that more experiments on moon formation need to be done. c. they show that no theory accounts for the existence of the moon. d. they show that neither theory is complete and entirely correct.

A100-watt light bulb radiates energy at a rate of 100 j/s. (the watt, a unit of power or energy over time, is defined as 1 j/s.) if all of the light emitted has a wavelength of 525 nm , how many photons are emitted per second?