Deck 4: Properties of Matter

Question 1

Physical properties include all the following except

A)boiling point.
B)reactivity with other substances.
C)odor.
D)specific gravity.

Answer 1

reactivity with other substances.

Question 2

Which is a chemical change?

A)Iron rusting
B)Water freezing
C)Alcohol evaporating
D)Ice melting

Answer 2

Iron rusting

Question 3

How many joules of energy are required to raise the temperature of 150.0g of water from 15.0^º C to 45.0^º C?

A)4500 J
B)18800 J
C)25400 J
D)6590 J

Answer 3

18800 J

Question 4

Carbon,when burned completely,forms carbon dioxide.If 11.7g of carbon combines with 31.3g of oxygen,what mass of carbon dioxide will be produced?

A)11.7g
B)19.6g
C)31.3g
D)43.0g

Question 5

Which is not a physical property of water?

A)Water is colorless.
B)The freezing point of water is 0^º Celsius.
C)Water reacts with sodium metal to produce sodium hydroxide and hydrogen.
D)The density of water at 4^º C is 1.00g/mL.

Question 6

A sample of water absorbs 3.00 x 10³ J of heat energy and its temperature rises from 20.0^ºC to 31.2^ºC.What is the mass of the water?

A)3.21g
B)64.0g
C)3.58g
D)1120g

Question 7

How many joules of energy are released when 100.0g of water cools from 98.0^º C to 20.0^º C?

A)32600 J
B)32800 J
C)167 J
D)7800 J

Question 8

300.0g of water is at 12.0^ºC.The water absorbs 4016 J of heat energy.What is the new temperature of the water?

A)3.2^ºC
B)15.2^ºC
C)8.8 ^ºC
D)13.1^ºC

Question 9

Hydrogen combines with oxygen to form water.If 1.67g of hydrogen combines with 13.33g of oxygen what mass of water will be produced?

A)1.67g
B)11.66g
C)13.33g
D)15.00g

Question 10

How many kilojoules of energy are absorbed when 800.0g of water is heated from 20.0^º C to 50.0^º C?

A)39.0 kJ
B)163 kJ
C)100.kJ
D)62.8 kJ

Question 11

Which is a physical change?

A)Kerosene burning
B)Decomposition of water by electrolysis
C)Salt dissolving in water
D)Converting alcohol to vinegar

Question 12

400.0g of a metal absorbs 10000.J of heat energy and its temperature rises from 20.0^º C to 103.0^º C)What is the specific heat of the metal?

A)0.301 J/g^º C
B)0.255 J/g^º C
C)3.32 J/g ^º C
D)0.243 J/g ^ºC

Question 13

How many kiloJoules of energy are released when 1600.g of water cools from 80.0^º C to 60.0^º C?

A)32.0 kJ
B)382 kJ
C)515 kJ
D)134 kJ

Question 14

A 400.0g sample of water is at 30.0^º C.How many joules of energy are required to raise the temperature of the water to 45.0^º C?

A)628 J
B)1880 J
C)25100 J
D)450 J

Question 15

250.0g of a metal releases 5000.J of energy and its temperature drops from 90.0^ºC to15.7^ºC.What is the specific heat of the metal?

A)3.72 J/g^ºC
B)0.269 J/g^ºC
C)0.222 J/g^ºC
D)1.27 J/g ^ºC

Question 16

Which phase change absorbs energy?

A)HOH (l) $\rarr$ HOH (s)
B)Fe (l) $\rarr$ Fe (s)
C)HOH (g) $\rarr$ HOH (l)
D)CH₃OH (l) $\rarr$ CH₃OH (g)

Question 17

Which phase change releases energy?

A)H₂O (l) $\rarr$ H₂O (g)
B)H₂O (s) $\rarr$ H₂O (l)
C)H₂O (l) $\rarr$ H₂O (s)
D)H₂O (s) $\rarr$ H₂O (g)

Question 18

45.0g of water is at 20.0 ^ºC.The water releases 2000.J of heat energy.What is the new temperature of the water?

A)19.9^ºC
B)30.6 ^ºC
C)-168^ºC
D)9.4^ºC

Question 19

A sample of water releases 4.50 x 10³ J of heat energy and its temperature drops from 80.0^ºC to 68.0^ºC.What is the mass of the water?

A)89.6g
B)13.4g
C)15.8g
D)1570g

Question 20

How many joules of energy are released when 45.0 g of water cools from 18.0^º C to 7.0^º C?

A)495 J
B)791 J
C)2860 J
D)2070 J

Question 21

3.17g of sodium combines with chlorine to form 8.00g of sodium chloride.What is the mass of chlorine in this sample of sodium chloride?

A)3.17g
B)4.83g
C)8.00g
D)11.17g

Question 22

Which is a physical change?

A)A piece of sulfur burns
B)Ice melts
C)Iron corrodes
D)A nail rusts

Question 23

12.0g of copper combine with iodine to form 36.0g of copper(I)iodide.What is the percent by mass of copper in copper(I)iodide?

A)12.0%
B)33.3%
C)66.7%
D)100.%

Question 24

Combining hydrogen and oxygen to form water is a

A)chemical change.
B)physical change.
C)conservation reaction.
D)none of these.

Question 25

12.0g of copper combine with iodine to form 36.0g of copper(I)iodide.What is the percent by mass of iodine in copper(I)iodide?

A)12.0%
B)33.3%
C)24.0%
D)66.7%

Question 26

Barium iodide contains 35.1% barium by mass.What mass of iodine is contained in 8.50g of barium iodide?

A)2.98g
B)5.52g
C)8.00g
D)2.54g

Question 27

A sample of carbon monoxide has a mass of 4.00g.What is the mass of oxygen in this compound if the mass of carbon is 1.71g?

A)1.71g
B)2.29g
C)0.59g
D)5.71g

Question 28

The specific heat of aluminum is 0.900 J/g^ºC.How much energy is required to heat 45.0g of aluminum from 20.0^ºC to 50.0^ºC?

A)2840 J
B)1220 J
C)810.J
D)2030 J

Question 29

Calcium chloride is 36.0% calcium by mass.A 5.00g sample of calcium chloride contains what mass of chlorine?

A)1.80g
B)1.40g
C)3.20g
D)5.00g

Question 30

Which is a physical change?

A)A piece of wood is burned
B)A nail rusts
C)A rubber band is stretched
D)A firecracker explodes

Question 31

To heat 60.0g of water from 30.0^ºC to 50.0^ºC requires

A)5.02 kJ
B)7.53 kJ
C)12.6 kJ
D)6.28 kJ

Question 32

Magnesium oxide is 60.0% magnesium by mass.What mass of magnesium is in a 14.0g sample of magnesium oxide?

A)8.40g
B)5.60g
C)2.80g
D)14.0g

Question 33

Which is not a physical property?

A)Boiling point
B)Physical state
C)Color
D)Bleaching action

Question 34

Which of these is not involved in the calculation of heat absorbed as a substance is warmed?

A)The mass of the sample
B)The density of the sample
C)The specific heat of the substance
D)The change in temperature of the sample

Question 35

Which is a chemical change?

A)Water evaporates
B)A penny tarnishes
C)Ice melts
D)Rock is ground into sand

Question 36

The specific heat of aluminum is 0.900J/g^ºC.A 400.0g sample of aluminum at 20.0^ºC absorbs 2520.J of heat energy.What is the new temperature of the aluminum?

A)7.00^ºC
B)13.0^ºC
C)20.0^ºC
D)27.0^ºC

Question 37

Magnesium chloride is 25.3% magnesium by mass.What mass of magnesium is in a 63.0g sample of magnesium chloride?

A)63.0g
B)31.2g
C)47.1g
D)15.9g

Question 38

To heat 12.4g of water from 20.0^ºC to 25.0^ºC requires

A)1040 J
B)1300 J
C)259 J
D)1050 J

Question 39

The specific heat of iron is 0.473 J/g^ºC.A 400.0g sample of iron at 20.0^ºC releases 2270.4 J of heat energy.What is the new temperature of the iron?

A)8.0 ^ºC
B)12.0^ºC
C)20.0 ^ºC
D)32.0 ^ºC

Question 40

The specific heat of iron is 0.473 J/g^ºC.How much energy is required to heat a 40.0g sample of iron from 35.0^ºC to 75.0^ºC?

A)757 J
B)2080 J
C)6690 J
D)1320 J

Question 41

Mercury(II)sulfide contains 86.2% mercury.The mass of mercury(II)sulfide that can be produced from 60.0g of mercury is

A)3450g
B)0.464g
C)34.5g
D)69.6g

Question 42

When 9.44g of calcium is heated in air,13.22g of calcium oxide is formed.What is the percent by mass of calcium in this compound?

A)28.6%
B)40.0%
C)71.4%
D)13.2%

Question 43

An example of a chemical property is

A)TNT is explosive.
B)gasoline is flammable.
C)zinc reacts with hydrochloric acid to produce hydrogen gas.
D)all the above

Question 44

According to the Law of Conservation of Energy,energy can be

A)created.
B)destroyed.
C)created and destroyed.
D)converted from one form to another.

Question 45

Which is a chemical property of chlorine?

A)It has a sharp suffocating odor.
B)It is a yellowish-green gas.
C)It boils at -34.6^ºC.
D)It combines with sodium to form sodium chloride.

Question 46

8.50g of potassium combines with 7.71g of chlorine to form potassium chloride.What is the percent by mass of potassium in potassium chloride?

A)52.4%
B)64.8%
C)47.6%
D)60.7%

Question 47

Magnesium chloride is 25.5% magnesium.What mass of magnesium could be recoveredfrom the decomposition of 25.5g of magnesium chloride?

A)25.5g
B)35.0g
C)6.50g
D)8.94g

Question 48

When 12.66g of calcium is heated in air,17.73g of calcium oxide is formed.The percent by mass of oxygen in calcium oxide is

A)28.60%
B)40.00%
C)71.40%
D)1.400%

Question 49

Mercury(II)sulfide contains 86.2% mercury by mass.The mass of mercury(II)sulfide that can be prepared from 30.0g of mercury is

A)2.59 X 10³g
B)2.87g
C)25.9g
D)34.8g

Question 50

Which illustrates in an increase in potential energy?

A)A firecracker explodes
B)A person climbs a set of stairs
C)A wind-up toy winding down
D)An apple dropping from a tree

Question 51

When 15.0g of magnesium and 15.0g of sulfur were mixed and reacted to form the compound magnesium sulfide,3.50g of magnesium remained unreacted.What is the percent by mass of magnesium in magnesium sulfide?

A)31.6%
B)43.4%
C)50.0%
D)56.8%

Question 52

When 9.44g of calcium is heated in air,13.22g of calcium oxide is formed.What is the percent by mass of oxygen in this compound?

A)28.6%
B)40.0%
C)71.4%
D)13.2%

Question 53

When 12.66g of calcium is heated in air,17.73g of calcium oxide is formed.The percent by mass of calcium in calcium oxide is

A)28.60%
B)40.40%
C)71.40%
D)1.400%

Question 54

The specific heat of iron is 0.473 J/g^ºC and the specific heat of lead is 0.128 J/g^ºC.In order to raise the temperature of one gram of those metals by one degree Celsius,

A)both metals require the same amount of energy.
B)the iron requires more energy than the lead.
C)the lead requires more energy than the iron.
D)no correct answer is given.

Question 55

What is the specific heat of a solid that requires 124 J of heat to raise the temperature of 95.5g of the substance from 20.0^ºC to 25.0^ºC?

A)2.6 J/g^ºC
B)0.26 J/g^ºC
C)1.4 J/g^ºC
D)5.9 X 10⁴ J/g^ºC

Question 56

According to the Law of Conservation of Mass,matter can be

A)created.
B)destroyed.
C)created and destroyed.
D)converted from one form to another.

Question 57

Zinc oxide contains 80.3% zinc.What size sample of zinc oxide would contain 5.35g of zinc?

A)4.30g
B)6.66g
C)11.0g
D)27.2g

Question 58

How many joules of energy are absorbed when 250.g of lead,specific heat is 0.128 J/g^ºC, are heated from 25.0^ºC to 245^ºC?

A)800.J
B)7040 J
C)7840 J
D)8640 J

Question 59

Which is a chemical change?

A)Ice melts
B)Alcohol evaporates
C)A rock is ground into sand
D)Silver tarnishes

Question 60

8.50g of potassium combines with 7.71g of chlorine to form potassium chloride.What is the percent by mass of chlorine in potassium chloride?

A)52.4%
B)64.8%
C)47.6%
D)60.7%

Question 61

In the reaction Ag(s)+ 2 HNO₃(aq)→ AgNO₃(aq)+ NO(g)+ H₂O(l)
The products are:

A)Ag(s),HNO₃(aq)
B)AgNO₃(aq),NO(g),H₂O(l)
C)AgNO₃(aq),NO(g)
D)HNO₃(aq),H₂O(l)

Question 62

The specific heat of zinc is 0.388 J/g^ºC.A 700.0g sample of zinc at 35.0^ºC absorbs 2.336 kJ of heat.What is the final temperature of the zinc?

A)8.6^ºC
B)26.4^ºC
C)43.6^ºC
D)301^ºC

Question 63

A 400.0g metal bar requires 6.446 kJ of energy to change its temperature from 18.0^ºC to 95.0^ºC.What is the specific heat of the metal?

A)0.895 J/g^ºC
B)161 J/g^ºC
C)2.09 X 10^-4 J/g^ºC
D)0.209 J/g^ºC

Question 64

The change of liquid water into ice is a

A)chemical change.
B)physical change.
C)heterogeneous change.
D)homogeneous change.

Question 65

One calorie is equal to

A)1.000 J
B)4.184 J
C)3.986 J
D)0.2390 J

Question 66

When 20.0g of mercury is heated from 10.0^ºC to 20.0^º,27.6 J of energy are absorbed.What is the specific heat of mercury?

A)0.725 J/g^ºC
B)0.138 J/g^ºC
C)2.76 J/g^ºC
D)No correct answer is given

Question 67

The following list represents properties of iron metal: atomic mass = 55.85 amu
Density = 7.87 g/cm³
Melting point = 1538 ºC
Undergoes oxidation in moist air
How many of these are physical properties?

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

Question 68

A shiny silver colored strip of metal is heated in a hot flame.It turns powdery and white.When the flame is removed and the strip cools it remains powdery white.What can you conclude from these observations?

A)All metals oxidize with heat
B)The metal strip has undergone a physical change
C)All physical changes require heat
D)The strip has undergone a chemical change

Question 69

Which phase change releases energy?

A)Gas to liquid
B)Solid to gas
C)Liquid to Gas
D)Solid to liquid

Question 70

The specific heat of copper is 0.386 J/g^ºC.A 20.0g sample of copper is heated from 25.0^ºC to 35.0^ºC.How much heat did the copper absorb?

A)837 J
B)77.2 J
C)194 J
D)270 J

Question 71

In the reaction 16 H⁺(aq)+ 10 (aq)+ 2 (aq)→ 5 Br₂(l)+ 2 Mn²⁺(aq)+ 8 H₂O(l)
The reactants are:

A)H⁺(aq), (aq),
(aq)
B)Br₂(l),Mn²⁺(aq),H²O(l)
C)H⁺(aq),H₂O(l)
D) (aq),
(aq)

Question 72

How much heat energy is required to raise the temperature of 4.50L of water from 36.0^ºC to 44.6^ºC?

A)162 J
B)1620 J
C)16200 J
D)162000 J

Question 73

How many kiloJoules of heat energy are required to raise the temperature of 400.0g of water from 18.0^ºC to 25.0 ^ºC?

A)12000 kJ
B)12 kJ
C)30.KJ
D)42 kJ

Question 74

Which of the following represents a physical change?

A)CH₄(g)+ 2 O₂(g)→ CO₂(g)+ 2 H₂O(l)
B)AgNO₃(aq)+ NaCl(aq)→ AgCl(s)+ NaNO₃(aq)
C)N₂(g)+ 3 H₂(g)→ 2 NH₃(g)
D)H₂O(s)→ H₂O(l)

Question 75

A sample of an unknown substance was tested in a laboratory.The sample could not be decomposed by chemical or physical means.Based on these results the laboratory reported that the sample was most likely a(n)

A)compound.
B)element.
C)solution.
D)mixture.

Question 76

As the average kinetic energy of the molecules of a sample increases,the Celsius temperature of the sample will

A)increase.
B)decrease.
C)remain the same.

Question 77

As Kelvin temperature increases,the average kinetic energy of the particles in a sample

A)increases.
B)decreases.
C)remains the same.

Question 78

A 25.0g sample of magnesium at 22.0^ºC absorbs 356.3 J of heat.The temperature of the magnesium rises to 36.5^ºC.What is the specific heat of the magnesium?

A)0.648 J/g^ºC
B)0.390 J/g^ºC
C)0.444 J/g^ºC
D)0.983 J/g^ºC

Question 79

Which term represents a form of energy?

A)Degree
B)Joule
C)Temperature
D)Heat

Question 80

Select the alternative that represents a physical change.

A)
B)
C)
D)