Answered: A gold-colored pebble is foundin a…

A gold-colored pebble is foundin a stream. Its mass is 23.2 mg,and its volume is 1.20 mm3. Whatis its density in grams per cubiccentimeter? Is it gold? (The densityof gold = 19.3 g/cm3.)

Introductory Chemistry: An Active Learning Approach

6th Edition

ISBN:9781305079250

Author:Mark S. Cracolice, Ed Peters

Publisher:Mark S. Cracolice, Ed Peters

Chapter3: Measurement And Chemical Calculations

Section: Chapter Questions

Problem 17PE: At a certain temperature, 0.878 g of a pure liquid substance occupies 1.00 mL. What is the volume of...

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Concept explainers

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.

Question

A gold-colored pebble is found
in a stream. Its mass is 23.2 mg,
and its volume is 1.20 mm³. What
is its density in grams per cubic
centimeter? Is it gold? (The density
of gold = 19.3 g/cm³.)

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