Consider the elements in the periodic table. the stair-step line between the pink squares and the yellow squares separates the (pink) from the (yellow).
a) gases; solids
b) metals; nonmetals
c) nonmetals; metals
d) reactive; nonreactive

Alculate the concentration of h3o⁺in a solution that contains 5.5 × 10-5m oh⁻at 25°c. identify the solution as acidic, basic, or neutral. a) 1.8 × 10-10m, basicb) 1.8 × 10-10m, acidicc) 5.5 × 10-10m, neutrald) 9.2 × 10-1m, acidice) 9.2 × 10-1m, basic

Asap! how do you lengthen a pattern piece? (family and consumer science, sewing)

The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride