Apart of the periodic table is shown below: a portion of the first two columns of the periodic table is shown. column one from top to bottom reads three lithium, 11 sodium, and 19 potassium. column two reads four beryllium, 12 magnesium, and 20 calcium. which of the following elements is less reactive than the others?

Brainliesttt me asap! the below reaction can be categorized as more than one type of reaction. which reactions are these, and what are the types of reactions?

Compare and contrast physical changes with chemical changes.

Need asap question 1 minerals are organic compounds. true false question 2 what vitamin can be found in foods like oranges, grapefruits, and broccoli? a. vitamin a b. vitamin k c.vitamin c d. vitamin d question 3 what are minerals? a. chemical elements that are needed for body processes. b. organic compounds that the body needs in small amounts to function properly. c. small molecules used to build proteins. d. an organic compound that is insoluble in water and includes fats. question 4 how many types of vitamins does the human body need? a. 15 b. 11 c. 13 d. 17 question 5 vitamins are a good source of energy. true false