Two friends are discussing physical and chemical changes. Anna says that when you eat, it is a physical change because when you chew, the food is only being changed into smaller pieces. Elsa says that when you eat, it is a chemical change because your body digests the food as the chemicals in your body break down the food into energy. Who is right?
A) Anna
B) Elsa
C) Both girls are correct
D) Neither girl is correct
Answers: 1
Chemistry, 21.06.2019 18:50
Suppose you got a low yield of benzoin from your benzoin condensation reaction and thus only have 0.300 g of benzoin to use as the starting material for this reaction. how much concentrated nitric acid should you add? (concentrated nitric acid is 15.8 m). write your answer in the form x.xx ml
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Chemistry, 22.06.2019 03:00
Schrodinger and heisenberg developed an alternate theory about atomic nature that contradicted some of bohr's model of the atom. how do changes resulting from new technology and evidence affect the reputation of the atomic theory?
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Chemistry, 22.06.2019 05:30
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Chemistry, 22.06.2019 08:40
What is the value of keq for the reaction expressed in scientific notation?
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Two friends are discussing physical and chemical changes. Anna says that when you eat, it is a physi...
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