1. When a person hears the word “chemical”, the person will likely have a ___ reaction.
2. a. In 2001, __% of the public understood the term molecule.
b. Test yourself: A molecule is made of more than one ___ held together by ___ bonds.
Give a one word answer in each blank. Separate each answer with a comma.
3. In 2001, 2010, and 2018, 45%, 51%, and 46%, respectively, of the public knew electrons are ___ than atoms.
4. All radioactivity is not manmade.
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