The density of water is approximately 1 g/cm³. Which of these substances will sink in water? A) Liquid hydrogen, d = 0.070 g/cm³ B) Lithium, d = 0.535 g/cm³ C) Potassium, d = 0.860 g/cm³ D) Polymer resin, d = 1.03 g/cm³

The density of water is approximately 1 g/cm³. Which of these substances will sink in water? A) Liquid hydrogen, d = 0.070 g/cm³ B) Lithium, d = 0.535 g/cm³ C) Potassium, d = 0.860 g/cm³ D) Polymer resin, d = 1.03 g/cm³

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter4: Energy And Chemical Reactions

Section: Chapter Questions

Problem 4.ECP

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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

The density of water is approximately 1 g/cm³. Which of these substances will sink in water?

A) Liquid hydrogen, d = 0.070 g/cm³

B) Lithium, d = 0.535 g/cm³

C) Potassium, d = 0.860 g/cm³

D) Polymer resin, d = 1.03 g/cm³

Definition Definition Large and very high-molecular-weight substances that consist of hundreds to thousands of repeating units. Polymers are also known as macromolecules. Number-average-molecular weight is the measuring system for the polymers.

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