Question:

Chemistry questions?? 10 pnts!!!!?

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describe one effect of chemistry and one effect of physics in each of the following actions.

a. A birthday cake is made by heating a mixture of salt, flour, baking powder, sugar, and oil.

b. iron, not silver, is used to build the frame of a car.

c. a small wagon accelerates faster than a large pickup truck when the same force is applied to both.

d. sea otters can float in water on their backs while feeding.

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2 ANSWERS


  1. idk


  2. a. chem-ingredients combine to create cake.

    phys-heat causes cake to expand

    b. iron is more chemically stable, and does not tarnish. it also stands up to extreme pressure better

    c. the small wagon has less weight, and therefore less inertia. the large pickup is also made up of a stronger alloy (chem)

    d. sea otters are able to displace the water well (phys) and have chemicals in their coats that repel water.

    hope this helps

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