Which of the following statements is true of hemiacetals?
A) All hemiacetals are stable.
B) All hemiacetals are unstable.
C) Some cyclic hemiacetals are stable.
D) Hemiacetals have two OH groups bonded to the same carbon.
C
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A chemical equation for the combustion of propane, C3H8, is shown below. Through this reaction is the carbon oxidized or reduced? C3H8 + 5 O2 ? 3 CO2 + 4 H2O
A) The carbon is oxidized. B) The carbon is reduced. C) Some of the carbons are oxidized while others are reduced. D) The carbon is neither oxidized nor reduced.
Explain why it is cold in the Northern Hemisphere when the Earth is closest to the Sun
What will be an ideal response?
What does carbon dioxide break down into once it is in the ocean?
A) Carbonic acid B) Bicarbonate C) Carbonate D) All of these choices
The Asian region is quite vast and expansive with over half the population of the world and half the total land area of the world
Indicate whether the statement is true or false