rlly need help this is due by tonight and i’m super stressed and i have literally no one who could help me cept you guys. it would mean a lot of you guys helped me. please look at the attachment!

they are both synthetic elements

explanation:

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my dad did alot of meth and ace cheeks

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.