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Chemical reactions ____.
a. occur only in living organisms
c. only occur outside living organisms
b. create and destroy atoms
d. produce new substances ____ 2. everyday equations describe ____.
a. thermonuclear reactions
c. chemical reactions
b. everyday processes
d. biological chemistry ____ 3. what does the symbol in a chemical equation mean

Respuesta :

laynahaycraft
2.everyday equations describe -everyday processes                                                                                                                                                                    1.Chemical reactions-produce new substances.
3.what does the symbol in a chemical equation mean-that the reaction is reversible

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