PH Worksheet to Accompany Experiment 10
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Which fossil fuel is mainly used for heating and cooking? a. electricity b. coal c. petroleum d. natural gas

Type the letter that represents the correct location for each particle type below. the neutron is found at __ the electron is found at __ the proton is found at __

Kelly has come up with an explanation for why her sister is sometimes in a good mood and other times in a bad mood. she speculates that it is based on the hours of sleep her sister got the previous night. this explanation for her sister's behaviors is an example of a(n)