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Chemistry, 17.12.2020 18:10 10mrodmg

Which is evidence that a chemical reaction has occurred? a. a phase change occurs

b. a new gas is observed in the form
of bubbles

c. red and yellow paint mixing to make orange paint

d. the temperature of the substances remains constant

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Which is evidence that a chemical reaction has occurred? a. a phase change occurs

b. a...

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