1. which of the following elements has a complete outer shell of electrons? a. nitrogen (n) b. hydrogen (h) c. neon (ne) d. iron (fe) 2. when atoms of two or more different elements bond, their properties a. combine b. none of these c. change d. are the same as the largest atom in the compound

Select the correct answer. when carbon dioxide dissolves in water, it sometimes reacts with water to form carbonic acid as in this balanced equation: co2 + h2o → h2co3. if 495 milliliters of carbon dioxide at 25°c and 101.3 kilopascals reacts with excess water, what is the theoretical yield of carbonic acid? use the periodic table and the ideal gas resource a. 0.889 g b. 1.10g c. 1.27g d. 2.02g what's the answer! quick!

The big bang nucleosynthesis theory states that elements were produced in the first few minutes of the big bang while elements have their origins in the interiors of stars, forming much later in the history of the universe.

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains