What is the reason why ions form? (whats happening with the
valance electrons)

What is the result of multiplying (2.5 × 1010) × (2.0 × 10-7)? a. 5.0 × 103 b. 5.0 × 10-3 c. 5.0 × 1017 d. 5.0 × 10-17

Drag each label to the correct location on the chart. classify each reaction as endothermic or exothermic.

Amap that uses a range of colors and shading to represent the elevation, depth, or landscape of specific features on earth is a/an map.