12 Two molecules of HBr collide and then form H2 and Br2. During the collision, the bonds in the HBr molecules are

A bundle of nerve fibers

Katherine recently had a swimming pool installed in her back yard. Using the water hose, she can put 75 gallons of water into the pool every hour. If the pool can hold 13,500 gallons, how long will it take to fill the pool? A. 120 hours B.

The compound HCI is an example of a (n)

Of the following, the particle generally not found in the nucleus of an atom is a) a hyperon b) a meson c) an electron d) a muon

g Given the reaction 4NH3 (g) 5O2 (g) - -> 4NO (g) 6H2O (g), what is the numerical value and sign in front of the change in [ammonia] over time for the rate expression of ammonia

Which pair of elements would combine to form an ionic compound? а b sodium and calcium sodium and chlorine carbon and oxygen carbon and sulfur с d

How many moles are there in 545g of Fe2O3?

How are magic minerals different from Felsic minerals? A. Mafic minerals contains lower levels of iron and magnesium. B. Mafic minerals contain more dark-colored, high-density minerals C.

Which of the following gases in Earth's atmosphere would you expect to find as molecules and which as individual atoms? a. Nitrogen b. Oxygen c. Argon

A substance that does not conduct electricity as a solid but does conduct electricity when melted is most likely classified as (1) an ionic compound (2) a molecular compound (3) a metal (4) a nonmetal