4 On a bright, sunny day, which time of day can
be predicted to create the shortest shadows?
F 9:00 A. M.
H 3:00 P. M.
G 12:00 P. M. J 12:00 A. M.

Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.

Why is soap used to remove grease? a. its nonpolar end dissolves the grease. b. it makes the water bond with the grease. c. it chemically bonds with the grease. d. its polar end dissolves the grease. correct answer for apex - a, its nonpolar end dissolves the grease.

Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.