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NEED ANSWERED ASAP FOR TEST PLEASE HELP If a chemical change requires energy, which of the following could be the source of the energy? Select one: a. Settling the mixture for 20 minutes b. Adding more
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NEED ANSWERED ASAP FOR TEST PLEASE HELP If a chemical change requires energy, which of the following could be the source of the energy?

Select one:
a. Settling the mixture for 20 minutes
b. Adding more substance to the observed material
c. Measuring mass from a beam balance
d. Heating with a flame

User Nick Russler
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1 Answer

4 votes
d. Heating with a flame, as this would provide thermal energy to the solution/substance
User Uwe Geuder
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