Question 1

Convert a temperature of 76S1U1P1$\circ$S1S1P0F to a Celsius value.

Accepted Answer

A)  10 
B)  24 
C)  44 
D)  169 
A)  10 
B)  24 
C)  44 
D)  169

Question 2

Which of the following is a derived unit of the S.I.system?

Accepted Answer

A)  kilogram 
B)  meter 
C)  liter 
D)  mole 
A)  kilogram 
B)  meter 
C)  liter 
D)  mole

Question 3

Do the following calculation and express the answer using correct scientific notation.
______ = (2.97 *102)* (6.09 *10-7)

Accepted Answer

A)  5.53 * 103 
B)  1.81 * 10-4 
C)  4.88 * 108 
D)  2.05 * 10-9 
A)  5.53 * 103 
B)  1.81 * 10-4 
C)  4.88 * 108 
D)  2.05 * 10-9

Question 4

If a sample of blood was found to have a density of 1.05 g/mL,what would be the mass of 1.000 liters of this material? Express your answer with the proper number of significant figures.

Accepted Answer

A)  1.05 *10-3 g 
B)  1.05 * 103 g 
C)  1050 g 
D)  1.050 kg 
A)  1.05 *10-3 g 
B)  1.05 * 103 g 
C)  1050 g 
D)  1.050 kg

Question 5

You are saving for a new $1226 (including taxes)laptop computer using earnings from your part-time job.At that job,you work 20 hours/week,earning $10.25/hour take home pay.If you can save 25% of all of your income,how many weeks will it take for you to save enough money?

Accepted Answer

A)  48 weeks 
B)  24 weeks 
C)  12 weeks 
D)  6 weeks 
A)  48 weeks 
B)  24 weeks 
C)  12 weeks 
D)  6 weeks

Question 6

Table salt,NaCl is best classified as a(n)_____ .

Accepted Answer

A)  compound 
B)  element 
C)  homogeneous mixture 
D)  heterogeneous mixture 
A)  compound 
B)  element 
C)  homogeneous mixture 
D)  heterogeneous mixture

Question 7

The mass of an object is

Accepted Answer

A)  the force between the object and the earth. 
B)  a measure of the amount of matter in the object. 
C)  the amount of space the object occupies. 
D)  depends on the location of the object on the earth. 
A)  the force between the object and the earth. 
B)  a measure of the amount of matter in the object. 
C)  the amount of space the object occupies. 
D)  depends on the location of the object on the earth.

Question 8

One advantage of the Kelvin system is that it is impossible to have temperatures below zero.

Accepted Answer

A) True 
 B)False

Question 9

An entry wound is found to be 0.36 inch in diameter.Which of the following guns was likely to have been used?

Accepted Answer

A)  9 mm Beretta 
B)  12 mm Uzi 
C)  200 mm Howitzer 
D)  0.5 cm pellet gun 
A)  9 mm Beretta 
B)  12 mm Uzi 
C)  200 mm Howitzer 
D)  0.5 cm pellet gun

Question 10

A sample of urine is measured to have the density of 1.15 g/mL which is an indicator that there may be a medical problem.

Accepted Answer

A) True 
 B)False

Question 11

Two pure substances A and B react to form a new pure substance C.From this,we may conclude that

Accepted Answer

A)  A and B are both elements 
B)  C is a compound,A and B may or may not be elements 
C)  C is an element,A and B are compounds 
D)  A,B,and C are all compounds 
A)  A and B are both elements 
B)  C is a compound,A and B may or may not be elements 
C)  C is an element,A and B are compounds 
D)  A,B,and C are all compounds

Question 12

Which of the following is a physical property of matter?

Accepted Answer

A)  it does not burn 
B)  produces a gas when placed in an acid 
C)  freezes at -10S1U1P1$\circ$S1S1P0F 
D)  the surface turns black in air 
A)  it does not burn 
B)  produces a gas when placed in an acid 
C)  freezes at -10S1U1P1$\circ$S1S1P0F 
D)  the surface turns black in air

Question 13

If 3333 is divided by 5.0,the answer should have two significant figures.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following is not one of the five key body characteristics that provide a good assessment of a person's overall health?

Accepted Answer

A)  blood pressure 
B)  blood cholesterol 
C)  body fat 
D)  age 
A)  blood pressure 
B)  blood cholesterol 
C)  body fat 
D)  age

Question 15

The fact that iron (Fe)corrodes when exposed to water and air is a

Accepted Answer

A)  physical property. 
B)  metal property. 
C)  chemical property. 
D)  real property. 
A)  physical property. 
B)  metal property. 
C)  chemical property. 
D)  real property.

Question 16

A hiker began a hike with a pint canteen full of water.One pint equals 16 fluid ounces.At the end of the hike,7.0 fluid ounces of water remained.What percent of the water was used during the hike?

Accepted Answer

A)  78 
B)  44 
C)  56 
D)  13 
A)  78 
B)  44 
C)  56 
D)  13

Question 17

The fact that gold does not corrode is a ______ property

Accepted Answer

A)  physical 
B)  personal 
C)  real 
D)  chemical 
A)  physical 
B)  personal 
C)  real 
D)  chemical

Question 18

How many significant figures are used in expressing a measurement as 0.2503 L?

Accepted Answer

A)  one 
B)  two 
C)  three 
D)  four 
A)  one 
B)  two 
C)  three 
D)  four

Question 19

Henna is a hair coloring that causes a permanent change in color until the hair grows out.Henna is regulated as both a drug and a cosmetic because the change is permanent.

Accepted Answer

A) True 
 B)False

Question 20

Express the following "generic number" in scientific notation.0.0000XXX

Accepted Answer

A)  XXX * 10-7 
B)  X.XX * 105 
C)  X.XX * 10-5 
D)  X.XX * 10-4 
A)  XXX * 10-7 
B)  X.XX * 105 
C)  X.XX * 10-5 
D)  X.XX * 10-4

Exam 1: Matter, measurements, and Calculations

Convert a temperature of 76 ∘\circ∘ F to a Celsius value.

Which of the following is a derived unit of the S.I.system?

Do the following calculation and express the answer using correct scientific notation. ______ = (2.97 *102)* (6.09 *10-7)

If a sample of blood was found to have a density of 1.05 g/mL,what would be the mass of 1.000 liters of this material? Express your answer with the proper number of significant figures.

You are saving for a new $1226 (including taxes)laptop computer using earnings from your part-time job.At that job,you work 20 hours/week,earning $10.25/hour take home pay.If you can save 25% of all of your income,how many weeks will it take for you to save enough money?

Table salt,NaCl is best classified as a(n)_____ .

The mass of an object is

One advantage of the Kelvin system is that it is impossible to have temperatures below zero.

An entry wound is found to be 0.36 inch in diameter.Which of the following guns was likely to have been used?

A sample of urine is measured to have the density of 1.15 g/mL which is an indicator that there may be a medical problem.

Two pure substances A and B react to form a new pure substance C.From this,we may conclude that

Which of the following is a physical property of matter?

If 3333 is divided by 5.0,the answer should have two significant figures.

Which of the following is not one of the five key body characteristics that provide a good assessment of a person's overall health?

The fact that iron (Fe)corrodes when exposed to water and air is a

A hiker began a hike with a pint canteen full of water.One pint equals 16 fluid ounces.At the end of the hike,7.0 fluid ounces of water remained.What percent of the water was used during the hike?

The fact that gold does not corrode is a ______ property

How many significant figures are used in expressing a measurement as 0.2503 L?

Henna is a hair coloring that causes a permanent change in color until the hair grows out.Henna is regulated as both a drug and a cosmetic because the change is permanent.

Express the following "generic number" in scientific notation.0.0000XXX

Atoms and Molecules

Electronic Structure and the Periodic Law

Forces Between Particles

Chemical Reactions

The States of Matter

Solutions and Colloids

Reaction Rates and Equilibrium

Acids,bases,and Salts

Radioactivity and Nuclear Processes

Organic Compounds: Alkanes

Unsaturated Hydrocarbons

Alcohols, phenols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Esters

Amines and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Nucleic Acids and Protein Synthesis

Nutrition and Energy for Life

Carbohydrate Metabolism

Lipid and Amino Acid Metabolism

Body Fluids

Filters

Convert a temperature of 76^$\circ$F to a Celsius value.

Do the following calculation and express the answer using correct scientific notation. ______ = (2.97 10²) (6.09 *10^-7)