4. Exactly 2 g of steel wool was placed in a 100 g glass jar. After 50 g of water was added to the jar, the lid was sealed tightly. One week later, the steel wool had turned completely to rust. What was the mass of the jar and its contents after 1 week? A. 50 g B. 52 g C. 150 g D. 152 gw bios

4. Exactly 2 g of steel wool was placed in a 100 g glass jar. After 50 g of water was added to the jar, the lid was sealed tightly. One week later, the steel wool had turned completely to rust. What was the mass of the jar and its contents after 1 week? A. 50 g B. 52 g C. 150 g D. 152 gw bios

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter7: Reactions In Aqueous Solutions

Section: Chapter Questions

Problem 51QAP

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Concept explainers

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".

Question

Pls help if u can, sorry for the trouble

4. Exactly 2 g of steel wool was placed in a 100 g glass jar. After 50 g of water was added to
the jar, the lid was sealed tightly. One week later, the steel wool had turned completely
to rust. What was the mass of the jar and its contents after 1 week?
A. 50 g
B. 52 g
C. 150 g
D. 152 gw bios
5. Hydrogen and oxygen react chemically to form water. How much water would be formed
if 2.4 grams of hydrogen reacted with 19.2 grams of oxygen?
A. 16.8 grams
B. 19.2 grams
C. 21.6 grams
D. 24.0 grams
mwollol odsto rainw

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