Chapter 1: Problem 94
True or false? A theory is an attempt to explain why a law is true.
Chapter 1: Problem 94
True or false? A theory is an attempt to explain why a law is true.
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Get started for freeThe air you breathe is made up mostly of nitrogen gas, \(\mathrm{N}_{2}\). (a) What can you say about the smallest possible piece of nitrogen gas? (b) Is nitrogen gas a compound? Explain.
Define chemistry.
True or false? After being heated to above its boiling point, ethanol is no longer ethanol but something else. Explain.
Which one of the following is a heterogeneous mixture: fog, gasoline, aluminum-magnesium alloy (made by melting these metals together), mixture of \(\mathrm{N}_{2}(g)\) and \(\operatorname{Ar}(g)\) ?
The United States started to undergo electrification in the late \(1800 \mathrm{~s}\), with the first example of widespread electric lighting at the 1893 Chicago World's Fair by Nikola Tesla. In 1831 , Michael Faraday discovered electromagnetic induction, which uses magnets to produce electricity in a wire. Explain which is an example of science and which an example of technology.
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