Question 4 of 10 Which of the following describes a chemical reaction?
A. Atoms in substances react with each other.
B. Molecules interact without bonds breaking.
C. Substances change shape but not properties.
D. Molecules mix without interacting.
SIR

Which element in the third period would you expect to have the larger atomic radius, sodium (na) or sulfur (s)? a. sodium, because it has a higher effective nuclear charge attracting electrons in fewer energy levels. b. sodium, because it has fewer protons attracting electrons in the same energy levels. c. sulfur, because it has more protons attracting electrons in more energy levels. d. sulfur, because it has a higher effective nuclear charge attracting electrons in the same energy levels.

C3h8o3 - glycerol major species present when dissolved in water

Can someone me with 1 to 4 plz. fast