Exam 3: Matter and Energy

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A slice of pizza contains 28 g of carbohydrate,13 g of protein and fat.If the pizza contains 280 kcal,how many grams of fat are present? (The caloric values are: 4 kcal/g for carbohydrate,9 kcal/g for fat,and 4 kcal/g for protein.Round off the energy value for each food group to the tens place.)

(Multiple Choice)

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Question 101

A 12-g sample of cooking oil,which is a fat,contains ________ kcal.(Round to the tens place.)

(Short Answer)

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Question 102

Which of the following is a chemical change?

(Multiple Choice)

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Question 103

A serving of fish contains 50 g protein and 4 g of fat.If protein has a caloric value of 4 kcal/g and fat has 9 kcal/g,how many kcal are in the serving? Round off the energy value for each food group to the tens place.

(Multiple Choice)

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Question 104

The specific heat of water (in J/g °C )is ________.

(Short Answer)

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Question 105

A car driving on the freeway has ________ energy.

(Short Answer)

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Question 106

How many calories are required to increase the temperature of 13 g of ethanol from 11 °C to 23 °C? The specific heat of ethanol is 0.59 cal/g °C.

(Multiple Choice)

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Question 107

If the heat of vaporization for water is 540 cal/g,how many kilocalories are released when 5.00 g of steam is converted to liquid at

(Multiple Choice)

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Question 108

A liquid has its own volume and shape.

(True/False)

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Question 109

The specific heat of copper is 0.0920 cal/g °C,and the specific heat of silver is If 100 cal of heat is added to one g of each metal at 25 °C,what is the expected result?

(Multiple Choice)

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Question 110

Showing 101 - 110 of 110

A slice of pizza contains 28 g of carbohydrate,13 g of protein and fat.If the pizza contains 280 kcal,how many grams of fat are present? (The caloric values are: 4 kcal/g for carbohydrate,9 kcal/g for fat,and 4 kcal/g for protein.Round off the energy value for each food group to the tens place.)

A 12-g sample of cooking oil,which is a fat,contains ________ kcal.(Round to the tens place.)

Which of the following is a chemical change?

A serving of fish contains 50 g protein and 4 g of fat.If protein has a caloric value of 4 kcal/g and fat has 9 kcal/g,how many kcal are in the serving? Round off the energy value for each food group to the tens place.

The specific heat of water (in J/g °C )is ________.

A car driving on the freeway has ________ energy.

How many calories are required to increase the temperature of 13 g of ethanol from 11 °C to 23 °C? The specific heat of ethanol is 0.59 cal/g °C.

If the heat of vaporization for water is 540 cal/g,how many kilocalories are released when 5.00 g of steam is converted to liquid at

A liquid has its own volume and shape.

The specific heat of copper is 0.0920 cal/g °C,and the specific heat of silver is If 100 cal of heat is added to one g of each metal at 25 °C,what is the expected result?

Chemistry in Our Lives

Chemistry and Measurement

Atoms and Elements

Nuclear Chemistry

Ionic and Molecular Compounds

Chemical Quantities and Reactions

Gases

Solutions

Acids and Bases and Equilibrium

Introduction to Organic Chemistry: Hydrocarbons

Alcohols, thiols, ethers, aldehydes, and Ketones

Carbohydrates

Carboxylic Acids, esters, amines, and Amides

Lipids

Amino Acids, proteins, and Enzymes

Nucleic Acids and Protein Synthesis

Metabolic Pathways and Energy Production

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