Answered: When we see a compound that has…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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When we see a compound that has parentheses, we treat them the same way we would in algebra. If we saw 2(x-4), we could distribute that 2 so that it would be 2x-8, right? Parentheses work in much the same way, but we usually use subscripts to be distributed.

Fe2(SO4)3 looks complicated. But remember our subscripts are just part of the chemical formula and they are still to the right of whatever elements we're looking at. This formula tells us there are 2 irons, 3 sulfurs, and 12 oxygens (just like when we distributed the 2 in the algebraic formula and multiplied above, we multiply the subscripts).

Let's look at an example: which of the following compounds has 9 hydrogens (H)?

Options:

	(NH4)2HPO4
	C₄H₈BeF₃NO₄
	C6H12O6
	CH₆NO₃P

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