Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 1: Problem 24

A silvery metal is put inside a beaker of water. Bubbles form on the surface of the metal and it dissolves gradually. (a) Is this an example of a chemical or a physical change? (b) Do you expect the remaining solution to be a pure substance of a mixture?

Short Answer

Expert verified
(a) This is an example of a chemical change, as new substances are produced during the process. (b) The remaining solution is a mixture, as it contains components from both the original metal and the water.

Step by step solution

01

Identify the type of change

Analyze the given clues: bubbles form on the metal's surface, and it dissolves gradually in the water. These observations indicate that new substances are produced in the process. Therefore, this is an example of a chemical change.
02

Determine the nature of the resulting solution

Since a chemical change occurred, new substances were formed during the process. This means that the resulting solution contains components from both the original metal and the water. Hence, the remaining solution is a mixture. So, to sum up: (a) The observed change is a chemical change. (b) The remaining solution is a mixture.

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.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

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 match is lit to light a candle. The following observations are made: (a) The candle burns. (b) Some wax melts. (c) Melted wax solidifies on the candleholder. (d) Soot (carbon) is produced by the burning of the match and the candle. Which of these occurrences are due to physical changes, and which are due to chemical changes?

(a) The speed of light in a vacuum is $2.998 \times 10^{8} \mathrm{~m} / \mathrm{s}$. Calculate its speed in miles per hour. (b) The Sears Tower in Chicago is \(1454 \mathrm{ft}\) tall. Calculate its height in meters. \((\mathbf{c})\) The Vehicle Assembly Building at the Kennedy Space Center in Florida has a volume of \(3,666,500 \mathrm{~m}^{3}\). Convert this volume to liters and express the result in standard exponential notation. (d) An individual suffering from a high cholesterol level in her blood has $242 \mathrm{mg}\( of cholesterol per \)100 \mathrm{~mL}$ of blood. If the total blood volume of the individual is \(5.2 \mathrm{~L}\), how many grams of total blood cholesterol does the individual's body contain?

(a) After the label fell off a bottle containing a clear liquid believed to be benzene, a chemist measured the density of the liquid to verify its identity. A \(25.0-\mathrm{mL}\) portion of the liquid had a mass of 21.95 g. A chemistry handbook lists the density of benzene at \(15^{\circ} \mathrm{C}\) as $0.8787 \mathrm{~g} / \mathrm{mL}$. Is the calculated density in agreement with the tabulated value? (b) An experiment requires \(15.0 \mathrm{~g}\) of cyclohexane, whose density at \(25^{\circ} \mathrm{C}\) is $0.7781 \mathrm{~g} / \mathrm{mL}$. What volume of cyclohexane should be used? (c) A spherical ball of lead has a diameter of \(5.0 \mathrm{~cm}\). What is the mass of the sphere if lead has a density of $11.34 \mathrm{~g} / \mathrm{cm}^{3} ?\( (The volume of a sphere is \)(4 / 3) \pi r^{3},\( where \)r$ is the radius.)

Water has a density of \(0.997 \mathrm{~g} / \mathrm{cm}^{3}\) at $25^{\circ} \mathrm{C}\(; ice has a density of \)0.917 \mathrm{~g} / \mathrm{cm}^{3}$ at \(-10^{\circ} \mathrm{C}\). (a) If a soft-drink bottle whose volume is $1.50 \mathrm{~L}\( is completely filled with water and then frozen to \)-10^{\circ} \mathrm{C},$ what volume does the ice occupy? (b) Can the ice be contained within the bottle?

(a) What is the mass of a silver cube whose edges measure 2.00 \(\mathrm{cm}\) each at \(25^{\circ} \mathrm{C} ?\) The density of silver is $10.49 \mathrm{~g} / \mathrm{cm}^{3}\( at \)25^{\circ} \mathrm{C}$. (b) The density of aluminum is \(2.70 \mathrm{~g} / \mathrm{cm}^{3}\) at \(25^{\circ} \mathrm{C}\). What is the weight of the aluminum foil with an area of \(0.5 \mathrm{~m}^{2}\) and a thickness of \(0.5 \mathrm{~mm} ?\) (c) The density of hexane is \(0.655 \mathrm{~g} / \mathrm{mL}\) at $25^{\circ} \mathrm{C} .\( Calculate the mass of \)1.5 \mathrm{~L}$ of hexane at this temperature.
See all solutions

Recommended explanations on Chemistry Textbooks

Chemistry Branches

Read Explanation

Inorganic Chemistry

Read Explanation

Making Measurements

Read Explanation

Kinetics

Read Explanation

Physical Chemistry

Read Explanation

The Earths Atmosphere

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.

Sign-up for free