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Author Archives: Anonymous

You notice that as the number of students in a class increas…

You notice that as the number of students in a class increases, the amount of personal attention each student receives decreases. What kind of proportion is this?

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Why is electrical energy transmitted at high voltage over lo…

Why is electrical energy transmitted at high voltage over long distances?

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Why are some isotopes radioactive?

Why are some isotopes radioactive?

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Solution A has a pH of 3, what is solution’s nature?

Solution A has a pH of 3, what is solution’s nature?

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What is the sum of the atomic weights of all the atoms in an…

What is the sum of the atomic weights of all the atoms in any formula called?

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What is the mass in grams that is numerically equal to its a…

What is the mass in grams that is numerically equal to its atomic weight known as?

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Which of the following best describes a chemical reaction?

Which of the following best describes a chemical reaction?

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According to the text, what chemicals are acids and bases in…

According to the text, what chemicals are acids and bases in water?

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What causes the property of magnetism?

What causes the property of magnetism?

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Where are coefficients placed to balance a chemical equation…

Where are coefficients placed to balance a chemical equation?

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