The substances sodium (na), oxygen (o2), and sodium oxide (na2o) participate in this chemical reaction: 4na + o2 → 2na2o. which statement best describes the reaction? a. elements rearrange, but no compounds are created or destroyed. b. sodium oxide is created by the chemical reaction. c. atoms from sodium oxide rearrange to form sodium and oxygen. d. in a mixture of the three substances, sodium oxide separates from the sodium and oxygen.

The correct answer is Option B

Sodium oxide is created by the chemical reaction.

Reason: This is a covalent reaction in which the ions pair to form Na2O.

Both Na has a valency of +1 and O has two pair of free electrons. Oxygen shares its electron with Na to form Covalent compound Na2O.

It is an unstable compound and soon react with hydrogen to form sodium hydroxide

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.