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3. Which of the following substance is an element?
A. Carbon dioxide
8. Iron
C. Salt
D. Sugar​


Sagot :

Answer:

B

Explanation:

Iron is a chemical element with symbol Fe and atomic number 26.

Answer:

B. IRON

Explanation:

IRON is the fourth most abundant element, by mass, in the Earth's crust. The core of the Earth is thought to be largely composed of iron with nickel and sulfur.