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Questions and Answers
Which quantity is measured in kilograms?
Which quantity is measured in kilograms?
What is the derived SI unit for pressure?
What is the derived SI unit for pressure?
How is velocity expressed in SI derived units?
How is velocity expressed in SI derived units?
Which of the following is the base unit for temperature in the SI system?
Which of the following is the base unit for temperature in the SI system?
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What is the SI derived unit for energy?
What is the SI derived unit for energy?
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Which quantity is measured in m²?
Which quantity is measured in m²?
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Which of the following represents the unit for electric current?
Which of the following represents the unit for electric current?
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What is the correct expression for density in SI derived units?
What is the correct expression for density in SI derived units?
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What is the SI unit for volume?
What is the SI unit for volume?
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What is the equivalent of 1 atmosphere in kilopascals?
What is the equivalent of 1 atmosphere in kilopascals?
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How is temperature converted from Celsius to Kelvin?
How is temperature converted from Celsius to Kelvin?
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Which prefix represents $10^{-3}$ in the metric system?
Which prefix represents $10^{-3}$ in the metric system?
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In measuring a known standard mass of 100.00 g, a balance shows 78.55 g. What term describes this measurement?
In measuring a known standard mass of 100.00 g, a balance shows 78.55 g. What term describes this measurement?
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What does precision in measurements refer to?
What does precision in measurements refer to?
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What is the density of a substance with a mass of 250 g and a volume of 1500 mL?
What is the density of a substance with a mass of 250 g and a volume of 1500 mL?
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Which of the following is a non-SI unit for energy?
Which of the following is a non-SI unit for energy?
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What is the primary difference between accuracy and precision?
What is the primary difference between accuracy and precision?
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How many significant figures are in the number 0.00456?
How many significant figures are in the number 0.00456?
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How are trailing zeros treated when determining significant figures?
How are trailing zeros treated when determining significant figures?
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If the number 105.500 is rounded to three significant figures, what is the result?
If the number 105.500 is rounded to three significant figures, what is the result?
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Which of the following numbers has only two significant figures?
Which of the following numbers has only two significant figures?
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According to the significant figures rules, how many significant figures does the number 0.010205 have?
According to the significant figures rules, how many significant figures does the number 0.010205 have?
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What should you do if you want to round the number 13.25 to one decimal place?
What should you do if you want to round the number 13.25 to one decimal place?
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When rounding the number 14.50 to the nearest whole number, which of the following is correct?
When rounding the number 14.50 to the nearest whole number, which of the following is correct?
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How many significant figures are in the value 0.003840?
How many significant figures are in the value 0.003840?
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What is the rounded value of 3.365 x 10^5 to three significant figures?
What is the rounded value of 3.365 x 10^5 to three significant figures?
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How many molecules are present in one mole of a substance?
How many molecules are present in one mole of a substance?
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What is the molar mass of a substance if its molecular weight is 46.1 amu?
What is the molar mass of a substance if its molecular weight is 46.1 amu?
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If you have 2.55 moles of Cu, how many grams of Cu do you have based on its molar mass of 63.5 g/mol?
If you have 2.55 moles of Cu, how many grams of Cu do you have based on its molar mass of 63.5 g/mol?
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When calculating the number of moles using the formula n = m / M.wt, what does 'm' represent?
When calculating the number of moles using the formula n = m / M.wt, what does 'm' represent?
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What is the significance of the number 6.022 x 10^23 in chemistry?
What is the significance of the number 6.022 x 10^23 in chemistry?
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Which of the following statements about significant figures is correct?
Which of the following statements about significant figures is correct?
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