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john is writing a report for his science teacher and its on compounds what sentence should he put in his report A)A compound is a pure substance composed of two or more elements that are chemically combined B)cats are composed of compounds C)compounds can be decomposed by chemical means D)compounds are mad up of matter
Lilly has home work due for ms Bolton and she has to make a word splash for the word elements what 3 words will be best for her word slpash A)periodic table, matter ,elements B)h20,sulfur,compound C)energy level,periodic table D) neutron,proton,biosphere
tony is taking a test and he is lost what is A substance that cannot be broken down into a simpler form by ordinary chemical means is called an
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