Can you tell if a liquid is a pure substance or a solution by looking at it? Explain why or why not.

No, you cannot tell by looking at it if something is a pure substance or a solution. In a solution, the different particles combine so thoroughly that it appears to contain only one kind of particle throughout, just like a pure substance.

8 m/s because for him to get the same amount of energy as ray is putting out, bobby, who weighs half as much as ray, needs to run twice as fast.

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them