Which of the following pairs of formulas have the same empirical and molecular formulas?

a. C2H4O2 and CH20

O b. CH2 and CH4

Oc. C6H6 and CH4

Od. CO2 and SO2

Extreme (1, 2, or 3) in the center of nebulae causes hydrogen atoms to shed their electrons and collide with one another. The (4, 5, or 6) of the collisions cause the smaller, bare nuclei to fuse into large helium nuclei. 1. expansion 2. heat 3.

What is the amount, in moles, of each elemental sample? a. 11.8 g Ar b. 3.55 g Zn c. 26.1 g Ta d. 0.211 g Li

What chemical warfare agent (cwa) primarily attacks the airway and lungs, causing irritation of the entire airway from the nose to the lungs resulting in what is commonly known as dry-land drowning?

Which statement is NOT true about oxygen-17 and oxygen-18? They have the same number of protons. Their atoms have an identical mass. They are isotopes of oxygen. They do not have the same mass number

How does chemical balance affect marine life in a bad way.

I'm doing isotope homework and I need the find the number of protons, neutrons, and electrons first one is chromium-58 and chromium-63

Trisha and her lab partner were conducting a variety of experiments to produce gases: hydrogen, oxygen, and carbon dioxide. In one experiment, they added a piece of magnesium ribbon to 10 milliliters of hydrochloric acid.

what mass of magnesium is required to react with excess nitrogen to produce 0.500 mol magnesium nitrade

Silver chromate is sparingly soluble in aqueous solutions. the ksp of ag2cro4 is 1.12 * 10-12 m3. what is the solubility (in mol/l) of silver chromate

What do you think 1,5-pentanedithiol C5H12S would smell like