In the formula for carbon tetrahydride, ch4, the percent composition of all elements is:

75% c, 25% h

25% c, 75% h

81% c, 19% h

20% c, 80% h

The percentage composition if carbon tetrahydride is 75% of carbon and 25% of hydrogen.

Explanation:

Molecular mass of carbon tetrahydride = 16 g/mol

Atomic mass of carbon = 12 g/mol

Atomic mass of hydrogen atom = 1 g/mol

Percentage of an element in a compound:

Percentage of carbon:

Percentage of hydrogen:

The percentage composition if carbon tetrahydride is 75% of carbon and 25% of hydrogen.

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