Exam Instructions Question 13 of 20
Select the best answer for the question.
13. Which of the following is a leguminous cover crop that can add nitrogen to the soil?
© A. Corn
O B. Clover
O c. Barley
OD. Wheat
O Mark for review (Will be highlighted on the review page)
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What best explains whether bromine (br) or neon (ne) is more likely to form a covalent bond? bromine forms covalent bonds because it has seven valence electrons, but neon has eight valence electrons and already fulfills the octet rule. bromine forms covalent bonds because it has many electron shells, but neon has only two electron shells and is tightly bound to its electrons. neon forms covalent bonds because it can share its valence electrons, but bromine has seven valence electrons and can gain only one more electron. neon forms covalent bonds because it has only two electron shells, but bromine has many electron shells and will lose electrons in order to fulfill the octet rule.

Ascientific idea becomes valid when it is what?

Veins have a much lower blood pressure than arteries. which of these prevents backflow of blood in veins? a. pressure applied by the heart b. one–way valves in veins c. thin muscular walls of veins