Question

question 16 (0.5 points)
give the formula from the systematic name
aluminum carbide 1 2
a. al₂ b. al c. al₃ d. al₄ e. so₃ f. (so₃)₂
g. (c₂h₃o₂)₂ h. c₂h₃o₂ i. hso₃ j. c₂ k. c₃
l. po₃ m. hpo₃ n. h₂po₃ o. oh p. (oh)₂
q. s r. so₄ s. (so₄)₂ t. c₄ u. alien

Explanation:

Step1: Determine aluminum and carbon charges

Aluminum (Al) has a +3 charge as a metal in Group 13, and carbon (C) in carbide has a - 4 charge.

Step2: Use charge - balance to find formula

To balance the charges, we need 4 aluminum atoms (+3×4 = + 12) and 3 carbon atoms (-4×3=-12). The formula is $Al_4C_3$. From the given options, for aluminum part it is D. $Al_4$ and for carbon part it is K. $C_3$.

Answer:

D. $Al_4$, K. $C_3$