At 0°C,35.7 g of sodium chloride (NaCl)will dissolve in 1.00 × 102 mL of water.What mass of sodium chloride will dissolve in 7.75 L of water (at 0°C)?

A) 4.61 g B) 4.61 × 101 g C) 7.75 × 101 g D) 2.17 × 102 g E) 2.77 × 103 g A) 4.61 g B) 4.61 × 101 g C) 7.75 × 101 g D) 2.17 × 102 g E) 2.77 × 103 g

The volume of a carbon atom is 1.9 × 10-30 m3.What is the radius of the atom in picometers? The volume of a sphere is (4/3)πr3.

A) 77 pm B) 520 pm C) 770 pm D) 3.0 × 102 pm E) 52 pm A) 77 pm B) 520 pm C) 770 pm D) 3.0 × 102 pm E) 52 pm

Atomic dimensions are often reported in Ångstroms (1 Å = 1 × 10−10 m).If the atomic radius of an aluminum atom is 1.43 Ångstroms,what is its radius in millimeters?

A) 1.43 × 10−13 mm B) 1.43 × 10−7 mm C) 0.143 mm D) 14.3 mm E) 143 mm A) 1.43 × 10−13 mm B) 1.43 × 10−7 mm C) 0.143 mm D) 14.3 mm E) 143 mm

Exam 1: Matter and Measurements

Calcium carbonate,or limestone,is relatively insoluble in water.At 25°C,only 5.8 mg will dissolve in 1.0 liter of water.What volume of water is needed to dissolve 5.0 g of calcium carbonate?

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Question 1

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At what point is the temperature in °C twice that of the temperature in °F?

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Question 2

Correct Answer:

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What is the correct answer to the following expression? 7.4576 × 10^-2+ 4.11 × 10^-5+ 6 × 10^-4

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Question 3

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If the outdoor temperature is 17.0°C,what is the temperature in Fahrenheit? (Remember: water melts at 0°C and 32°F;water boils at 100°C and 212°F)

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Question 4

At 0°C,35.7 g of sodium chloride (NaCl)will dissolve in 1.00 × 10² mL of water.What mass of sodium chloride will dissolve in 7.75 L of water (at 0°C)?

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Question 5

An extensive property is

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Question 6

The dimensions of a box are 1.2 feet by 0.50 feet by 0.75 feet.Calculate the volume of the box in cubic centimeters.(2.54 cm = 1.00 inch,12.0 inches = 1.00 foot)

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Question 7

Which of the following is the largest volume?

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Question 8

What is the correct answer to the expression below? 1.472 × 10−⁷ + 4.32 × 10−⁹ =

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Question 9

All of the following are examples of chemical change EXCEPT

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Question 10

All of the following statements are false EXCEPT

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Question 11

The boiling point of ammonia is -33.3°C.What is this temperature in kelvin?

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Question 12

The volume of a carbon atom is 1.9 × 10^-30 m³.What is the radius of the atom in picometers? The volume of a sphere is (4/3)πr³.

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Question 13

All of the following are examples of an intensive property EXCEPT

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Question 14

Atomic dimensions are often reported in Ångstroms (1 Å = 1 × 10−¹⁰ m).If the atomic radius of an aluminum atom is 1.43 Ångstroms,what is its radius in millimeters?

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Question 15

Which term best describes rocks,such as granite or marble?

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Question 16

How many significant figures are in the following mass: 0.00047800 kg?

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Question 17

Which one of the following substances is classified as a chemical compound?

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Question 18

Express 0.00720 in exponential notation.

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Question 19

525 mL of water at 25°C (density = 0.997 g/mL)is placed in a container.The water is then cooled to form ice at −10°C (density = 0.917 g/mL).What is the mass and volume of the ice?

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Question 20

Showing 1 - 20 of 44

Exam 1: Matter and Measurements

Calcium carbonate,or limestone,is relatively insoluble in water.At 25°C,only 5.8 mg will dissolve in 1.0 liter of water.What volume of water is needed to dissolve 5.0 g of calcium carbonate?

At what point is the temperature in °C twice that of the temperature in °F?

What is the correct answer to the following expression? 7.4576 × 10-2+ 4.11 × 10-5 + 6 × 10-4

If the outdoor temperature is 17.0°C,what is the temperature in Fahrenheit? (Remember: water melts at 0°C and 32°F;water boils at 100°C and 212°F)

At 0°C,35.7 g of sodium chloride (NaCl)will dissolve in 1.00 × 102 mL of water.What mass of sodium chloride will dissolve in 7.75 L of water (at 0°C)?

An extensive property is

The dimensions of a box are 1.2 feet by 0.50 feet by 0.75 feet.Calculate the volume of the box in cubic centimeters.(2.54 cm = 1.00 inch,12.0 inches = 1.00 foot)

Which of the following is the largest volume?

What is the correct answer to the expression below? 1.472 × 10−7 + 4.32 × 10−9 =

All of the following are examples of chemical change EXCEPT

All of the following statements are false EXCEPT

The boiling point of ammonia is -33.3°C.What is this temperature in kelvin?

The volume of a carbon atom is 1.9 × 10-30 m3.What is the radius of the atom in picometers? The volume of a sphere is (4/3)πr3.

All of the following are examples of an intensive property EXCEPT

Atomic dimensions are often reported in Ångstroms (1 Å = 1 × 10−10 m).If the atomic radius of an aluminum atom is 1.43 Ångstroms,what is its radius in millimeters?

Which term best describes rocks,such as granite or marble?

How many significant figures are in the following mass: 0.00047800 kg?

Which one of the following substances is classified as a chemical compound?

Express 0.00720 in exponential notation.

525 mL of water at 25°C (density = 0.997 g/mL)is placed in a container.The water is then cooled to form ice at −10°C (density = 0.917 g/mL).What is the mass and volume of the ice?

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What is the correct answer to the following expression? 7.4576 × 10^-2+ 4.11 × 10^-5+ 6 × 10^-4

At 0°C,35.7 g of sodium chloride (NaCl)will dissolve in 1.00 × 10² mL of water.What mass of sodium chloride will dissolve in 7.75 L of water (at 0°C)?

What is the correct answer to the expression below? 1.472 × 10−⁷ + 4.32 × 10−⁹ =

The volume of a carbon atom is 1.9 × 10^-30 m³.What is the radius of the atom in picometers? The volume of a sphere is (4/3)πr³.

Atomic dimensions are often reported in Ångstroms (1 Å = 1 × 10−¹⁰ m).If the atomic radius of an aluminum atom is 1.43 Ångstroms,what is its radius in millimeters?