If a five-cent coin is made of 25% copper and 75% Nickel, determine the mass of Nickel and Copper in the coin.

3.75g of Ni and 1.25g of Cu

Explanation:

The five-cent coin of Unit States has a mass of 5.000g. To find the mass of each atom we have to multiply the total mass times the percentage of each atom (Nickel and Copper). That is:

Mass Nickel:

5.000g * 75% = 3.75g of Ni

Mass Copper:

5.000g * 25% = 1.25g of Cu

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because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates