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a part of the periodic table is shown. (5 points)

a portion of the first two columns of the periodic table is shown. column one from top to bottom reads 11 sodium, 19 potassium, and 37 rubidium. column two reads 12 magnesium, 20 calcium, and 38 strontium.

which of the following elements is more reactive than the others?
calcium (ca)
magnesium (mg)
potassium (k)
sodium (na)

in the analysis of systems that involve fluid flow, we frequently encounter the combination of properties u and pv.

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