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Showing posts with label pH Scale.. Show all posts
Showing posts with label pH Scale.. Show all posts

Friday, November 9, 2018

The pH Scale Quiz!

This week in science we were given a quiz about the pH Scale. I teamed up with Lars and we worked together during the quiz. Some of the questions were hard to answer but we were allowed to search up the questions to get the answer. It was a fun quiz to do and I have learned lots of things I haven't known before. I believe that Lars and I did pretty good, during the quiz. But the other questions were too hard for us, although Axle helped us at some of the questions. The answers are made bold and they have brackets around them. But anyways here is the quiz!

Task 1
Complete the quiz below

Neutral solutions have a pH of  (7)

What colour represents neutral on the pH scale (Green)

What is the range covered by the pH scale (0-14)

pH is a measure of (Hydrogen  ions) Oxygen Hydrogen Hydroxide

Acids and bases can combine to create water and salts (True)

Which is not a property of a base Sour taste Bitter taste Slippery (Sour taste)

There are a variety of strengths of acids and bases True False (True)

Vinegar is an example of a Strong base Strong Acid Weak Acid (Weak acid)

An acid’s pH is between (0-14)

What is true when acids and bases neutralize each other; (They react to neutralize then the  acid and base properties will produce a salt.)

Water is produced Salt is produced Both water and salt are produced (Salt)

Does baking soda have a pH of 9? Explain your answer (“Yes” it have a pH of 9, making it a mildly alkaline substance.) _________________________________________________________________________________