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Chemistry Atoms First2e

2nd Edition

OpenStax

Publisher: OpenStax College

ISBN: 9781947172647

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Chapter

Section

Problem 1E:

Explain how you could experimentally determine whether the outside temperature is higher or lower...

Problem 2E:

Identify each of the following statements as being most similar to a hypothesis, a law, or a theory....

Problem 3E:

Identify each of the following statements as being most similar to a hypothesis, a law, or a theory....

Problem 4E:

Identify each of the underlined items as a part of either the macroscopic domain, the microscopic...

Problem 5E:

Identify each of the underlined items as a part of either the macroscopic domain, the microscopic...

Problem 6E:

According to one theory, the pressure of a gas increases as its volume decreases because the...

Problem 7E:

The amount of heat required to melt 2 lbs of ice is twice the amount of heat required to melt 1 lb...

Problem 8E:

Why do we use an objects mass, rather than its weight, to indicate the amount of matter it contains?

Problem 10E:

How does a heterogeneous mixture differ from a homogeneous mixture? How are they similar?

Problem 13E:

How do molecules of elements and molecules of compounds differ? In what ways are they similar?

Problem 15E:

Many of the items you purchase are mixtures of pure compounds. Select three of these commercial...

Problem 16E:

Classify each of the following as an element, a compound, or a mixture: (a) copper (b) water (c)...

Problem 17E:

Classify each of the following as an element, a compound, or a mixture: iron oxygen mercury oxide...

Problem 19E:

How are the molecules in oxygen gas, the molecules in hydrogen gas, and water molecules similar? How...

Problem 21E:

Prepare a list of the principal chemicals consumed and produced during the operation of an...

Problem 22E:

Matter is everywhere around us. Make a list by name of fifteen different kinds of matter that you...

Problem 23E:

When elemental iron corrodes it combines with oxygen in the air to ultimately form red brown...

Problem 24E:

As stated in the text, convincing examples that demonstrate the law of conservation of matter...

Problem 25E:

Yeast converts glucose to ethanol and carbon dioxide during anaerobic fermentation as depicted in...

Problem 26E:

Classify the six underlined properties in the following paragraph as chemical or physical: Fluorine...

Problem 27E:

Classify each of the following changes as physical or chemical: condensation of steam burning of...

Problem 28E:

Classify each of the following changes as physical or chemical: coal burning ice melting mixing...

Problem 29E:

The volume of a sample of oxygen gas changed from 10 mL to 11 mL as the temperature changed. Is this...

Problem 30E:

A 2.0-mer volume of hydrogen gas combined with 1.0 liter of oxygen gas to produce 2.0 liters of...

Problem 32E:

Identify the following properties as either extensive or intensive. volume temperature humidity heat...

Problem 33E:

The density (d) of a substance is an intensive property that is defined as the ratio of its mass (m)...

Problem 35E:

Is a meter about an inch, a foot, a yard, or a mile?

Problem 36E:

Indicate the SI base units or derived units that are appropriate for the following measurements: the...

Problem 37E:

Indicate the SI base units or derived units that are appropriate for the following measurements: the...

Problem 38E:

Give the name and symbol of the prefixes used with SI units to indicate multiplication by the...

Problem 39E:

Give the name of the prefix and the quantity indicated by the following symbols that are used with...

Problem 40E:

A large piece of jewelry has a mass of 132.6 g. A graduated cylinder initially contains 48.6 mL...

Problem 41E:

Visit this PhET density simulation (http://openstaxcollege.org/l/16phetmasvolden) and select the...

Problem 42E:

Visit this PhET density simulation (http://openstaxcollege.org/l/16phetmasvolden) and select Custom...

Problem 43E:

Visit this PhET density simulation (http://openstaxcollege.org/l/16phetmasvolden) and select Mystery...

Problem 44E:

Express each of the following numbers in scientific notation with correct significant figures: 711.0...

Problem 45E:

Express each of the following numbers in exponential notation with correct significant figures: 704...

Problem 46E:

Indicate whether each of the following can be determined exactly or must be measured with some...

Problem 47E:

Indicate whether each of the following can be determined exactly or must be measured with some...

Problem 48E:

How many significant figures are contained in each of the following measurements? 38.7 g 21018m...

Problem 49E:

How many significant figures are contained in each of the following measurements? 53 cm 2.05108m...

Problem 50E:

The following quantities were reported on the labels of commercial products. Determine the number of...

Problem 51E:

Round off each of the following numbers to two significant figures: 0.436 9.000 27.2 135 1.497103...

Problem 52E:

Round off each of the following numbers to two significant figures: 517 86.3 6.382103 5.0008 22.497...

Problem 53E:

Perform the following calculations and report each answer with the correct number of significant...

Problem 54E:

Perform the following calculations and report each answer with the correct number of significant...

Problem 55E:

Consider the results of the archery contest shown in this figure. Which archer is most precise Which...

Problem 56E:

Classify the following sets of measurements as accurate, precise, both, or neither. Checking for...

Problem 57E:

Write conversion factors (as ratios) for the number of: yards in 1 meter liters in 1 liquid quart...

Problem 58E:

Write conversion factors (as ratios) for the number of: kilometers in 1 mile liters in 1 cubic foot...

Problem 59E:

The label on a soft drink boule gives the volume in two units: 2.0 L and 67.6 fl oz. Use this...

Problem 60E:

The label on a box of cereal gives the mass of cereal in two units: 978 grams and 34.5 oz. Use this...

Problem 61E:

Soccer is played with a round ball having a circumference between 27 and 28 in. and a weight between...

Problem 62E:

A woman’s basketball has a circumference between 28.5 and 29.0 inches and a maximum weight of 20...

Problem 65E:

The diameter of a red blood cell is about 3104 in. What is its diameter in centimeters?

Problem 66E:

The distance between the centers of the two oxygen atoms in an oxygen molecule is 1.21108 cm. What...

Problem 67E:

Is a 197-lb weight lifter light enough to compete in a class limited to those weighing 90 kg or...

Problem 68E:

A very good 197-Ib weight lifter lifted 192 kg in a move called the clean and jerk. What was the...

Problem 69E:

Many medical laboratory tests are run using 5.0 L blood serum. What is this volume in milliliters?

Problem 70E:

If an aspirin tablet Contains 325 mg aspirin, how many grams of aspirin does it contain?

Problem 71E:

Use scientific (exponential) notation to express the following quantities in terms of the SI base...

Problem 72E:

Complete the following conversions between SI units. 612g = mg 8.160 m ______ cm 3779 g = ________ g...

Problem 73E:

Gasoline is sold by the liter in many countries. How many liters are required to fill a 12.0-gal gas...

Problem 74E:

Milk is sold by the liter in many Countries. What is the volume of exactly 1/2 gal of milk in...

Problem 76E:

Make the conversion indicated in each of the following: the men’s world record long jump, 29 ft 414...

Problem 77E:

Make the conversion indicated in each of the following: the length of a soccer field, 120 m (three...

Problem 78E:

Many chemistry conferences have held a 50-Trillion Angstrom Run (two significant figures). How long...

Problem 79E:

Many chemistry conferences have held a 50-Trillion Angstrom Run (two significant figures). How long...

Problem 80E:

The gas tank of a certain luxury automobile holds 22.3 gallons according to the owner’s manual. If...

Problem 81E:

As an instructor is preparing for an experiment, he requires 225 g phosphoric acid. The only...

Problem 82E:

To prepare for a laboratory period, a student lab assistant needs 125 g of a compound. A bottle...

Problem 83E:

A chemistry student is 159 cm tall and weighs 45.8 kg. What is her height in inches and weight in...

Problem 84E:

In a recent Grand Prix, the winner completed the race with an average speed of 229.8 km/h. What was...

Problem 85E:

Solve these problems about lumber dimensions. To describe to a European how houses are constructed...

Problem 86E:

The mercury content of a stream was believed to be above the minimum considered safe —1 part per...

Problem 88E:

Osmium is one of the densest elements known. What is its density if 2.72 g has a volume of 0.12 1...

Problem 89E:

Calculate these masses. What is the mass of 6.00 cm3 of mercury, density = 13.5939 g/cm3 What is the...

Problem 90E:

Calculate these masses. What is the mass of 4.00 cm3 of sodium, density = 0.97 g/cm3 What is the...

Problem 91E:

Calculate these volumes. What is the volume of 25 g iodine, density = 4.93 g/cm3 What is the volume...

Problem 92E:

Calculate these volumes. What is the volume of 11.3 g graphite, density = 2.25 g/cm3 What is the...

Problem 95E:

Convert the temperature of the coldest area in a freezer, 10 F, to degrees Celsius and kelvin.

Problem 97E:

Convert the boiling temperature of liquid ammonia. 28.1 F, into degrees Celsius and kelvin.

We offer sample solutions for Chemistry Atoms First2e homework problems. See examples below:

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Explain how you could experimentally determine whether the outside temperature is higher or lower...In the following drawing, the green spheres represent atoms of a certain element. The purple spheres...The light produced by a red neon sign is due to the emission of light by excited neon atoms....Does a cation gain protons to form a positive charge or does it lose electrons?Explain how Ïƒ and bonds are similar and how they are different.What is the total mass (amu) of carbon in each of the following molecules? CH4 CHCl3 C12H12O6...What does it mean to say an equation is balanced? Why is it important for an equation to be...Why are sharp knives more effective than dull knives (Hint: think about the definition of pressure)?A burning match and a bonfire may have the same temperature, yet you would not sit around a burning...

In terms of their bulk properties, how do liquids and solids differ? How are they similar?How do solutions differ from compounds? From other mixtures?What is a spontaneous reaction?What does it mean to describe a reaction as reversible?Write equations that show NH3 as both a conjugate acid and a conjugate base.Complete the changes in concentrations for each of the following reactions: (a) AgI(s)Ag+(aq)+I(aq)x...Identify each half-reaction below as either oxidation or reduction....What is the difference between average rate, initial rate, and instantaneous rate?How do alkali metals differ from alkaline each metals in atomic structure and general properties?Write the electron configurations far each of the following elements: (a) Sc. (b) Ti. (c) Cr. (d)...Write the following isotopes in hyphenated form (e.g., carbon-14). (a) N1124a (b) A1329l (c) K3673r...Write the chemical formula and Lewis structure of the following each of which contains five carbon...

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