/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 19 Label each of the following as e... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 1: Problem 19

Label each of the following as either a physical process or a chemical process: (a) corrosion of aluminum metal, (b) melting of ice, (c) pulverizing an aspirin, (d) digesting a candy bar, (e) explosion of nitroglycerin.

Short Answer

Expert verified
(a) Corrosion of aluminum metal: Chemical process (b) Melting of ice: Physical process (c) Pulverizing an aspirin: Physical process (d) Digesting a candy bar: Chemical process (e) Explosion of nitroglycerin: Chemical process

Step by step solution

01

(a) Corrosion of aluminum metal

Corrosion is the process of gradual destruction of metal due to a chemical reaction with its surrounding environment, such as air or water. In the case of aluminum metal, the corrosion leads to the formation of aluminum oxide. Since the molecular composition changes, this is a chemical process.
02

(b) Melting of ice

Melting of ice involves the change of state from solid (ice) to liquid (water) without altering its molecular composition. Both ice and water are composed of H2O molecules, and therefore, it is a physical process.
03

(c) Pulverizing an aspirin

Pulverizing an aspirin tablet involves breaking it down into smaller pieces or powder without altering its molecular structure or composition. This process only changes the physical appearance of the aspirin tablet; hence, it is a physical process.
04

(d) Digesting a candy bar

Digesting a candy bar involves the breakdown of the complex substances present in the candy bar into simpler molecules that can be absorbed and used by the body. This process changes the molecular composition of the substances in the candy bar, so it is a chemical process.
05

(e) Explosion of nitroglycerin

An explosion of nitroglycerin is a chemical reaction in which nitroglycerin rapidly decomposes to produce various gaseous products and releases a large amount of energy in the form of heat, light, and sound. Since the molecular composition of nitroglycerin changes during the explosion, it is a chemical process.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

(a) A sample of carbon tetrachloride, a liquid once used in dry cleaning, has a mass of \(39.73 \mathrm{~g}\) and a volume of \(25.0\) mLat \(25^{\circ} \mathrm{C}\). What is its density at this temperature? Will carbon tetrachloride float on water? (Materials that are less dense than water will float.) (b) The density of platinum is \(21.45 \mathrm{~g} / \mathrm{cm}^{3}\) at \(20^{\circ} \mathrm{C}\). Calculate the mass of \(75.00 \mathrm{~cm}^{3}\) of platinum at this temperature. (c) The density of magnesium is \(1.738 \mathrm{~g} / \mathrm{cm}^{3}\) at \(20^{\circ} \mathrm{C}\). What is the volume of \(87.50 \mathrm{~g}\) of this metal at this temperature?

A package of aluminum foil contains \(50 \mathrm{ft}^{2}\) of foil, which weighs approximately \(8.0\) oz. Aluminum has a density of \(2.70 \mathrm{~g} / \mathrm{cm}^{3} .\) What is the approximate thickness of the foil in millimeters?

The density of air at ordinary atmospheric pressure and \(25^{\circ} \mathrm{C}\) is \(1.19 \mathrm{~g} / \mathrm{L}\). What is the mass, in kilograms, of the air in a room that measures \(12.5 \times 15.5 \times 80 \mathrm{ft}\) ?

Use appropriate metric prefixes to write the following measurements without use of exponents: (a) \(6.35 \times 10^{-2} \mathrm{~L}\), (b) \(6.5 \times 10^{-6} \mathrm{~s}\), (c) \(9.5 \times 10^{-4} \mathrm{~m}\), (d) \(4.23 \times 10^{-9} \mathrm{~m}^{3}\), (e) \(12.5 \times 10^{-8} \mathrm{~kg}\), (f) \(3.5 \times 10^{-10} \mathrm{~g}\) (g) \(6.54 \times 10^{9} \mathrm{fs}\).

Gold can be hammered into extremely thin sheets called gold leaf. If a \(200-\mathrm{mg}\) piece of gold (density \(=19.32 \mathrm{~g} / \mathrm{cm}^{3}\) ) is hammered into a sheet measuring \(2.4 \times 1.0 \mathrm{ft}\), what is the average thickness of the sheet in meters? How might the thickness be expressed without exponential notation, using an appropriate metric prefix?
See all solutions

Recommended explanations on Chemistry Textbooks

Making Measurements

Read Explanation

Physical Chemistry

Read Explanation

Chemistry Branches

Read Explanation

Kinetics

Read Explanation

Ionic and Molecular Compounds

Read Explanation

Nuclear Chemistry

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.