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Chemistry Bases Quiz

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Questions and Answers

What is the definition of a base according to Svante Arrhenius?

A substance that dissociates in aqueous solution to form hydroxide ions (correct)

A substance that changes the color of pH indicators

A substance that increases the hydronium concentration in water

A substance that reacts with acids to form water

What characteristic properties are associated with aqueous hydroxide solutions?

Sticky to the touch, sour taste, and turn litmus paper red

Slippery to the touch, bitter taste, and change the color of pH indicators (correct)

Smooth to the touch, salty taste, and turn litmus paper green

Rough to the touch, sweet taste, and turn litmus paper blue

What is the pH of a solution yielded by a base at standard conditions?

Higher than 7.0 (correct)

Exactly 7.0

Lower than 7.0

Depends on the specific base

What is a soluble base called if it contains and releases OH− ions quantitatively?

An alkali Signup and view all the answers

Why are bases and acids seen as chemical opposites?

Acids increase the hydronium concentration, while bases reduce it Signup and view all the answers

What is the formula to find the n-th term of an arithmetic progression?

$a_n = a_1 + (n - 1)d$ Signup and view all the answers

What is a finite portion of an arithmetic progression called?

Finite arithmetic progression Signup and view all the answers

What is the sum of a finite arithmetic progression called?

Arithmetic series Signup and view all the answers

Who is often credited with reinventing the method to compute the sum of integers from 1 through 100 using arithmetic progression?

Carl Friedrich Gauss Signup and view all the answers

What is the common difference in the arithmetic progression: 3, 7, 11, 15, 19, ...?

4 Signup and view all the answers