Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
Chemistry Help?!?!?!?!?!??!!??!??!?
Consider the equation H2 + Cl2 --> 2HCl. A student suggests that according to the ratio shown by the coefficients, 20 g of hydrogen will react with 20 g of chloride to form 40 g of HCl. Is the student correct? Explain???
1 Answer
- 1 decade agoFavorite Answer
The student is incorrect because the coefficients present in the chemical equation represent the number of moles, not the number or grams. In reality, one mole of hydrogen will react with one mole of chloride to form 2 moles of HCl. In grams, 2g of hydrogen will react with 70.9 g of chloride to form 36.45 g of hydrochloric acid (using molar mass off of the periodic table).
Source(s): high school & college chem class
