Match the following associations. + ΔΗ (endothermic, exothermic)
Ez energy is absorbed (endothermic, exothermic)
Ez > E (endothermic, exothermic)
- ΔΗ
(endothermic, exothermic)

In a floral arrangement, the focal area is often

What does x represent in the formula for the compound xcl4?

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.