How many moles are there in 25.0 grams of KMnO4

The problem provides a conversion factor---> 1 mm3= 7.0 x 10^6 RBC. Therefore, to determine the quantity of red blood cells in your sample, we must first convert Liters to cm3 using the conversion factor--> 1 mL= 1 cm3

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Answer: The correct option is, 30 protons

Explanation:

Element = Zinc

Atomic number = 30

Atomic mass number = 65

Recall that the atomic number equals the number of electrons and protons.

Atomic number = Number of electrons = Number of protons = 30

Number of neutrons = Atomic mass - Number of protons = 65 - 30 = 35

Therefore, an uncharged zinc atom has 30 protons.