In a(n) reaction there is a loss of electrons, while in a(n) reaction there is a gain of electrons.

Ais a mountain created from eruptions of lava, ash, rocks, and hot gases.

An unsaturated hydrocarbon is a hydrogen-carbon compound with a. a network solid structure b. single bonds c. single bonds in a branched-chain structure d. double or triple bonds

Scientist think that animals with remarkably similar embryo development probably shared a common ancestor