Use the periodic table to determine which of the

following could be an isotope of bromine (Br).

Check all that apply.

- Z = 79, A = 196

Z = 35, A = 79

A = 79, N = 44

Z = 44, N=44

NDN

DONE

Under appropriate conditions, nitrogen and hydrogen undergo a combination reaction to yield ammonia: N 2 (g) 3H 2 (g) 2NH3 (g) If the reaction yield is 87.5%, how many moles of N 2 are needed to produce 3.00 mol of NH 3

Find the mass in grams of 4.52 mol C20H42. Use the molar masses: C = 12.0 g/mol; H = 1.0 g/mol. CA. 15.3g B. 8.09 g C. 1.27 g D. 2.54 g Check Answer

Why do oxygen (O) and neon (Ne) have different chemical properties

Select the correct answer. How does the structure of a carbon atom enable it to form large molecules? A. Each carbon atom can be stable with one, two, three, or four bonds because of how its valence electrons are arranged. B.

What is the effect of temperature on molarity?

Rebekah is studying a molecule and trying to determine if it is DNA or RNA. Which kind of molecule is she studying? carbohydrate protein nucleic acid lipid

The function of most proteins depends primarily on the

Compare the temperature of water as ice begins to form with the temperature of ice as it begins to melt?

Which elements are present in sugars?

How does Q compare to Keg? O Q> Keq O Q< Kea OQ = Keg