Alloys and Their Applications
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Questions and Answers

What is the pH range for acids on the pH scale?

0-6

What is the ability of a metal to be drawn out into wires known as?

Ductile

What color will litmus paper turn in an alkali?

Blue

What is the property of acids that makes them sour?

<p>Corrosive</p> Signup and view all the answers

What type of solution is formed when an acid and alkali are mixed together?

<p>Salt and water</p> Signup and view all the answers

Why are alloys stronger than pure metals?

<p>Different sizes of particles in alloys prevent them from sliding over each other as easily when force is applied.</p> Signup and view all the answers

What is the difference between 24 carat gold and 18 carat gold?

<p>24 carat gold is pure gold, while 18 carat gold is not pure; only 18 out of 24 parts are real gold.</p> Signup and view all the answers

Why are plane wings made with an alloy like Duralumin instead of pure aluminum?

<p>Using pure aluminum would result in the wings falling off during flight due to the pressure put on them.</p> Signup and view all the answers

Why can't coins be made of pure silver?

<p>Pure silver is too soft and weak to be used in coins and would not withstand wear when in pockets.</p> Signup and view all the answers

What metals are bronze and brass alloys made of?

<p>Bronze is a mixture of copper and zinc, while brass is also an alloy.</p> Signup and view all the answers

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