Materials<span> and their </span>properties<span>: </span>compounds like<span> sodium chloride - an interactive educational resource for 11 to 14 year olds. ... Elements are substances (</span>like<span> hydrogen and oxygen) that can't be split into simpler substances. ... For </span>each<span> statement, decide whether it describes a mixture or a </span>compound<span> and check the box.</span>
Explanation:
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sorry I don't have any ideas
At first we thought atoms were just electrons and were negatively charged, but now we’ve learned that is can create different and many more substances.
I looked it up and got Precipitation