Chemistry, 21.01.2021 19:00 crodriguez87
Drew added yeast and sugar to lukewarm water and placed it in a flask. He
stretched a balloon over the opening of the flask. After several minutes, he noticed
small bubbles rising along the side of the flask as the balloon slowly began to inflate.
Drew concluded that -
A)a physical change was occurring
B) the bubbles indicated a chemical change
C) the water surger and yeast were products of a chemical reaction
D) the strong smell was evidence of a physical changer
Answers: 3
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Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.
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Nitrogen dioxide decomposes according to the reaction 2 no2(g) ⇌ 2 no(g) + o2(g) where kp = 4.48 × 10−13 at a certain temperature. if 0.70 atm of no2 is added to a container and allowed to come to equilibrium, what are the equilibrium partial pressures of no(g) and o2(g)
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What happens in the particles of a gas when the gas is compressed
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Drew added yeast and sugar to lukewarm water and placed it in a flask. He
stretched a balloon over...
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