Chemistry Exam 1

Last updated over 1 year ago

18 questions

7

6

5

2

1

2

6

7

3

10

20

Library

Chemistry Exam 1

Last updated over 1 year ago

18 questions

7

Draggable item		Corresponding Item

6

Draggable item		Corresponding Item

6

Draggable item		Corresponding Item

6

Draggable item		Corresponding Item

5

Draggable item		Corresponding Item

2

1

2

6

Draggable item		Corresponding Item

7

Draggable item		Corresponding Item

7

Draggable item		Corresponding Item

7

Draggable item		Corresponding Item

3

10

Draggable item		Corresponding Item

20

Explain one or two of the labs we did, including your hypothesis, the materials, your procedure observations, and conclusions. Use as many as possible of the following words, using seven complete sentences:

density, graduated cylinder, beaker, scale, 9V battery, Silicon, Zinc, water, marker cap, isopropyl alcohol, electrode, Oxygen, Hydrogen, acid, base, pH indicator, electrolyte, test tube, alligator clips

Match the following symbols with their name or description

Draggable item		Corresponding Item
F		the fuel for fusion reactions in the Sun and fusion bombs
S		Boron
H		the core element in diamonds, graphite, DNA, proteins, and carbohydrates
C		The most abundant element in our atmosphere
N		the common nonmetal that reacts with almost every other metal and nonmetal, making up a large part of the atmosphere, biosphere, hydrosphere, and the crust of the earth
B		Flourine
O		Sulfur

Match the following symbols with their name or description

Draggable item		Corresponding Item
Li		Helium
Si		this metals density makes it useful for electric car batteries
He		Beryllium
Be		an inert Noble gas used in signs
Ca		its unusual ability to change its electrical conductivity makes it essential for microprocessors and solid state memory chips
Ne		essential to bone and shell strength and muscle and nerve function

Match the following symbols with their name or description

Draggable item		Corresponding Item
Hg		Potassium
Ag		A halogen that is useful for killing bacteria in drinking water and swimming pools
Na		Iron
Fe		Silver
Cl		a metal that is liquid at room temperature and used in thermometers and other instruments
K		Sodium

Match the following

Draggable item		Corresponding Item
Seawater		Element
Argon		Compound
Carbon Dioxide		Mixture

Draggable item		Corresponding Item
Gold		solution
Potassium		the less reactive common gas in our atmosphere
Helium		reactive metal
Air		inert Nobel gas
Nitrogen		conductive nonreactive metal

Which of the following can be separated by fractional distillation

Nitrogen, Oxygen, and Carbon Dioxide in liquid air

Tar, Diesel, and Butane in Crude Oil

Both of the above

Helium is abundant in the universe but rare in our atmosphere because Earths gravity cannot keep it in the atmosphere (this is true of Hydrogen, is it also true of Helium?)

True

False

Helium is the product of Nuclear Fusion in the stars and bombs

True

False

Uranium is the fuel for Nuclear Fission in bombs and nuclear reactors

True

False

Uranium changes into Lead through a chemical reaction

True

False

Which of the following help kill bacteria

Match the following with what is produced when it reacts with Oxygen

Draggable item		Corresponding Item
Argon		Orange Rust
Copper		Black Tarnish
Hydrogen		Green Cupric Oxide
Iron		Water
Silver		Carbon Dioxide
Coal		Does not react with Oxygen

Match the following

Draggable item		Corresponding Item
density		a chemical property
color		the property that allows water striders to walk on water
temperature		the amount of matter in a substance
surface tension		the space a substance occupies
volume		the mass of a substance divided by the space it occupies
mass		the wavelength of visible light that is reflected or emitted from an object
flammability		the average kinetic energy of the particles in a substance

Match the following

Draggable item		Corresponding Item
ductility		a chemical property
permeability		the temperature at which a substance freezes
melting point		the temperature at which a substance changes from a liquid state to a gaseous state
toxicity		a measure of how much light or heat bounces back from an object
reflectivity		the tendency of an object to bend under pressure and return to its original position when that pressure is removed
elasticity		the ability to allow something else to pass through it (e.g. water through soil, Oxygen through a membrane)
boiling point		the ability to lengthen a substance like a wire without it breaking

Match the following

Draggable item		Corresponding Item
solubility		a chemical property
hardness		the way light interacts with the surface of a crystal, rock, or mineral
luster		the thickness, stickiness, or resistance to flow of a liquid
reactivity		how much pressure a substance can take without bending or breaking
opacity		the ability of a substance to form a solution with another substance
viscosity		the ability of a substance to allow light to pass through it
strength		the resistance of a solid to scratching

Which of the following is true of the graph below (there may be more than one correct answer)

At temperatures below point B this substance is a solid

Between the time at points B and C this substance in the process of condensing

Between the time at points D and E this substance is in the process of evaporating

Match each unit with what it measures

Draggable item		Corresponding Item
Volume		g
Density		mL
Time		g/ml
Pressure		s
Mass		N/m2 (or PSI in the British System) Force divided by a unit of area

Explain one or two of the labs we did, including your hypothesis, the materials, your procedure observations, and conclusions. Use as many as possible of the following words, using seven complete sentences:

density, graduated cylinder, beaker, scale, 9V battery, Silicon, Zinc, water, marker cap, isopropyl alcohol, electrode, Oxygen, Hydrogen, acid, base, pH indicator, electrolyte, test tube, alligator clips

Match the following symbols with their name or description

F

the fuel for fusion reactions in the Sun and fusion bombs

S

Boron

H

the core element in diamonds, graphite, DNA, proteins, and carbohydrates

C

The most abundant element in our atmosphere

N

the common nonmetal that reacts with almost every other metal and nonmetal, making up a large part of the atmosphere, biosphere, hydrosphere, and the crust of the earth

B

Flourine

O

Sulfur

Match the following symbols with their name or description

Li

Helium

Si

this metals density makes it useful for electric car batteries

He

Beryllium

Be

an inert Noble gas used in signs

Ca

its unusual ability to change its electrical conductivity makes it essential for microprocessors and solid state memory chips

Ne

essential to bone and shell strength and muscle and nerve function

Match the following symbols with their name or description

Hg

Potassium

Ag

A halogen that is useful for killing bacteria in drinking water and swimming pools

Na

Iron

Fe

Silver

Cl

a metal that is liquid at room temperature and used in thermometers and other instruments

K

Sodium

Match the following

Seawater

Element

Argon

Compound

Carbon Dioxide

Mixture

Gold

solution

Potassium

the less reactive common gas in our atmosphere

Helium

reactive metal

Air

inert Nobel gas

Nitrogen

conductive nonreactive metal

Which of the following can be separated by fractional distillation

Nitrogen, Oxygen, and Carbon Dioxide in liquid air

Tar, Diesel, and Butane in Crude Oil

Both of the above

Helium is abundant in the universe but rare in our atmosphere because Earths gravity cannot keep it in the atmosphere (this is true of Hydrogen, is it also true of Helium?)

True

False

Helium is the product of Nuclear Fusion in the stars and bombs

True

False

Uranium is the fuel for Nuclear Fission in bombs and nuclear reactors

True

False

Uranium changes into Lead through a chemical reaction

True

False

Which of the following help kill bacteria

Flourine

Chlorine

Bromine

Iodine

All of the above

Match the following with what is produced when it reacts with Oxygen

Argon

Orange Rust

Copper

Black Tarnish

Hydrogen

Green Cupric Oxide

Iron

Water

Silver

Carbon Dioxide

Coal

Does not react with Oxygen

Match the following

density

a chemical property 

color

the property that allows water striders to walk on water

temperature

the amount of matter in a substance

surface tension

the space a substance occupies

volume

the mass of a substance divided by the space it occupies

mass

the wavelength of visible light that is reflected or emitted from an object

flammability

the average kinetic energy of the particles in a substance

Match the following

ductility

a chemical property 

permeability

the temperature at which a substance freezes

melting point

the temperature at which a substance changes from a liquid state to a gaseous state

toxicity

a measure of how much light or heat bounces back from an object

reflectivity

the tendency of an object to bend under pressure and return to its original position when that pressure is removed

elasticity

the ability to allow something else to pass through it (e.g. water through soil, Oxygen through a membrane)

boiling point

the ability to lengthen a substance like a wire without it breaking

Match the following

solubility

a chemical property 

hardness

the way light interacts with the surface of a crystal, rock, or mineral

luster

the thickness, stickiness, or resistance to flow of a liquid

reactivity

how much pressure a substance can take without bending or breaking

opacity

the ability of a substance to form a solution with another substance

viscosity

the ability of a substance to allow light to  pass through it

strength

the resistance of a solid to scratching 

Which of the following is true of the graph below (there may be more than one correct answer)

At temperatures below point B this substance is a solid

Between the time at points B and C this substance in the process of condensing

Between the time at points D and E this substance is in the process of evaporating

Match each unit with what it measures

Volume

g

Density

mL

Time

g/ml

Pressure

s

Mass

N/m2   (or PSI in the British System) Force divided by a unit of area