CP Chemistry Semester 1 Midterm

Last updated almost 2 years ago

35 questions

Instructions

1

Required

5

Required

8

Library

CP Chemistry Semester 1 Midterm

Last updated almost 2 years ago

35 questions

Instructions

Read each question carefully and choose the best response. Use the periodic table below to help you as needed.  If you click on it, it will enlarge on your screen.

1

Required

5

Other Answer Choices:

Nucleus

Neutron

Proton

Energy Level

Electron

Required

8

Other Answer Choices:

Read each question carefully and choose the best response. Use the periodic table below to help you as needed.  If you click on it, it will enlarge on your screen.

Which element would have properties characteristic of both a metal and a nonmetal?

Si

Xe

K

Ag

In the modern Periodic Table, the elements are arranged in order of increasing

oxidation number

mass number

valence number

atomic number

Ms. Frizzle measured the mass of a closed beaker containing several ice cubes. The mass was 100 g. An hour later, after the ice cubes had melted, Ms. Frizzle measured the mass of the beaker again.
What was the mass of the beaker filled with water the second time?

75 g

125 g

50 g

100 g

Which two substances can not be broken down by chemical change?

C and CuO

CO2 and Cu

C and Cu

CO2 and CuO

Which element in Period 3 is the most reactive metal?

Al

Na

P

Cl

Which particles are found in the nucleus of an atom?

neutrons, only

protons and neutrons

electrons, only

protons and electrons

What is the total number of valence electrons in an atom of phosphorus (P) in the ground state?

2

3

7

5

To determine the density of an irregularly shaped object, a student placed the object in 21.2 milliliters of H2O in a graduated cylinder, causing the level of the H2O to rise to 27.8 milliliters. If the object has a mass of 22.4 grams, what was the density of the object?

Which atoms represent different isotopes of the same element?

What happens in the Group 1 (IA) elements of the Periodic Table as you go further down the periods?

distance between the valence electron and the nucleus is decreasing,  and it becomes easier to remove an electron from the element

distance between the valence electron and the nucleus is decreasing, and it becomes harder to remove an electron from the element.

distance between the valence electron and the nucleus is increasing, and it becomes harder to remove an electron from the element.

distance between the valence electron and the nucleus is increasing,  and it becomes easier to remove an electron from the element

Which diagram represents the change from a solid to a liquid state of matter?

Which of the following is an example of a physical change?

the mirrors in the bathroom fog up during a shower

while cookies cook in the oven, they spread out and turn a light golden brown 

sulfur combined with oxygen produces sulfur dioxide

iron exposed to air produces rust

Different arrangements of atoms are shown in the figures below
Which figure represents a mixture?

Figure 2

Figure 1

Figure 3

Figure 4

In which pair do the particles have approximately the same mass?

neutron and electron

proton and neutron

proton and electron

neutron and beta particle

Which statement correctly describes a sample of gas in a sealed container?

it takes the shape and the volume of any container in which it is kept

it consists of particles arranged in a regular geometric pattern

it has a crystalline structure

it always has a definite volume, and it take the shape of the container

Which element is least likely to undergo a chemical reaction?

carbon

neon

fluorine

lithium

After a neutral sulfur atom gains two electrons what is the resulting charge of the ion?

2-

8-

2+

6+

What is the total number of valence electrons in an atom with a total of 13 protons?

3

4

1

2

What is the mass number of an atom which contains 21 electrons, 21 protons, and 24 neutrons?

21

45

66

42

At STP (standard temperature and pressure), which substance is the best conductor of electricity?

silver

nitrogen

sulfur

neon

Which is the atomic number of an atom that forms an ion with 18 electrons and a charge of 2+?

30

48

20

18

Atoms of metallic elements tend to

lose electrons and form negative ions

gain electrons and form positive ions

lose electrons and form positive ions

gain electrons and form negative ions

Elements X and Y react to from compound XY.
How is compound XY different from elements X and Y?

Th reactivity of compound XY is greater than the reactivity of elements X and Y

The physical properties of compound XY have changed from those of elements X and Y

The volume of compound XY is less than the combined volumes of elements X and Y

The mass of compound XY is greater than the combined masses of elements X and Y

Which statement best describes the nucleus of an aluminum atom?

It has a charge of -13 and is surrounded by a total of 13 electrons

It has a charge of +13 and is surrounded by a total of 10 electrons

It has a charge of -13 and is surrounded by a total of 10 electrons

It has a charge of +13 and is surrounded by a total of 13 electrons

Which are two properties of most nonmetals?

brittle and good electrical conductivity

give up electrons in a chemical reaction and good electrical conductivity

malleable and poor electrical conductivity

gain electrons in a chemical reaction and poor electrical conductivity

Jennifer wanted to eat a hard-boiled egg for breakfast. She put the egg in boiling water for fifteen minutes. When she broke the shell, the liquid parts of the egg had become solid. This was because

heating removed the water from the egg

heating changed the chemical bonds in the egg

boiling brought the solid egg parts to the surface

the bacteria living in the liquid egg were killed

Which type of matter is composed of two or more different elements that are chemically combined in a whole number ratio?

a compound

a heterogeneous mixture

a solution

a homogeneous mixture

Which element is considered the most malleable?

radon

gold

hydrogen

sulfur

In the Kitchen
Common kitchen appliances include electric stoves, toasters, and blenders. Each appliance uses an energy source and involves energy changes to prepare food.

An open pot of water is heated on the stove. As water boils, the molecules

get larger

get smaller

move faster and farther apart

move slower and closer together

Which of these phrases best describes the most modern theory of the atom?

a hard sphere with positive particles uniformly spread throughout the sphere

a small, dense, positive nucleus surrounded by cloud of negative charges

a large, dense, positive nucleus surrounded by cloud of neutral charges

a hard sphere with negative particles uniformly spread throughout the sphere

Which of the following atoms would most likely gain electrons in a chemical reaction?

F

Rb

Al

Pb

An atom in the ground state contains 8 valence electrons. This atom is classified as

semimetal

noble gas

halogen

metal

Which action will result in a product with new chemical properties?

breaking a mirror

cutting wood

shredding newspaper

popping popcorn

Other Answer Choices:

Nucleus

Neutron

Proton

Energy Level

Electron

Drag the matter choices to the correct box in the chart.brass

Other Answer Choices:

Which element would have properties characteristic of both a metal and a nonmetal?

Si

Xe

K

Ag

In the modern Periodic Table, the elements are arranged in order of increasing

oxidation number

mass number

valence number

atomic number

Ms. Frizzle measured the mass of  a closed beaker containing several ice cubes. The mass was 100 g. An hour later, after the ice cubes had melted, Ms. Frizzle measured the mass of the beaker again.
What  was the mass of the beaker filled with water the second time?

75 g

125 g

50 g

100 g

Which two substances can not  be broken down by chemical change?

C and CuO

CO2 and Cu

C and Cu

CO2 and CuO

Which element in Period 3 is the most reactive metal?

Al

Na

P

Cl

Which particles are found in the nucleus of an atom?

neutrons, only

protons and neutrons

electrons, only

protons and electrons

What is the total number of valence electrons in an atom of phosphorus (P) in the ground state?

2

3

7

5

To determine the density of an irregularly shaped object, a student placed the object in 21.2 milliliters of H2O in a graduated cylinder, causing the level of the H2O to rise to 27.8 milliliters. If the object has a mass of 22.4 grams, what was the density of the object?

6.6 g/mL

D= m/V

28 g/mL

3.4 g/mL

3.0 g/mL

Which atoms represent different isotopes of the same element?

What happens in  the Group 1 (IA) elements of the Periodic Table as you go further down the periods?

distance between the valence electron and the nucleus is decreasing,  and it becomes easier to remove an electron from the element

distance between the valence electron and the nucleus is decreasing, and it becomes harder to remove an electron from the element.

distance between the valence electron and the nucleus is increasing, and it becomes harder to remove an electron from the element.

distance between the valence electron and the nucleus is increasing,  and it becomes easier to remove an electron from the element

Which diagram represents the change from a solid to a liquid state of matter?

Which of the following is an example of a physical change?

the mirrors in the bathroom fog up during a shower

while cookies cook in the oven, they spread out and turn a light golden brown 

sulfur combined with oxygen produces sulfur dioxide

iron exposed to air produces rust

Different arrangements of atoms are shown in the figures below
Which figure represents a mixture?

Figure 2

Figure 1

Figure 3

Figure 4

In which pair do the particles have approximately the same mass?

neutron and electron

proton and neutron

proton and electron

neutron and beta particle

Which statement correctly describes a sample of gas in a sealed container?

it takes the shape and the volume of any container in which it is kept

it consists of particles arranged in a regular geometric pattern

it has a crystalline structure

it always has a definite volume, and it take the shape of the container

Which element is least likely to undergo a chemical reaction? 

carbon

neon

fluorine

lithium

After a neutral sulfur atom gains two electrons what is the resulting charge of the ion?

2-

8-

2+

6+

What is the total number of valence electrons in an atom with a total of 13 protons?

3

4

1

2

What is the mass number of an atom which contains 21 electrons, 21 protons, and 24 neutrons?

21

45

66

42

At STP (standard temperature and pressure), which substance is the best conductor of electricity?

silver

nitrogen

sulfur

neon

Which is the atomic number of an atom that forms an ion with 18 electrons and a charge of 2+?

30

48

20

18

Atoms of metallic elements tend to

lose electrons and form negative ions

gain electrons and form positive ions

lose electrons and form positive ions

gain electrons and form negative ions

Elements X and Y react to from compound XY.
How is compound XY different from elements X and Y?

Th reactivity of compound XY is greater than the reactivity of elements X and Y

The physical properties of compound XY have changed from those of elements X and Y

The volume of compound XY is less than the combined volumes of elements X and Y

The mass of compound XY is greater than the combined masses of elements X and Y

Which statement best describes the nucleus of an aluminum atom?

It has a charge of -13 and is surrounded by a total of 13 electrons

It has a charge of +13 and is surrounded by a total of 10 electrons

It has a charge of -13 and is surrounded by a total of 10 electrons

It has a charge of +13 and is surrounded by a total of 13 electrons

Which are two properties of most nonmetals?

brittle and good electrical conductivity

give up electrons in a chemical reaction and good electrical conductivity

malleable and poor electrical conductivity

gain electrons in a chemical reaction and poor electrical conductivity

Jennifer wanted to eat a hard-boiled egg for breakfast. She put the egg in boiling water for fifteen minutes. When she broke the shell, the liquid parts of the egg had become solid. This was because

heating removed the water from the egg

heating changed the chemical bonds in the egg

boiling brought the solid egg parts to the surface

the bacteria living in the liquid egg were killed

Which type of matter is composed of two or more different elements that are chemically combined in a whole number ratio?

a compound

a heterogeneous mixture

a solution

a homogeneous mixture

Which element is considered the most malleable?

radon

gold

hydrogen

sulfur

In the Kitchen
Common kitchen appliances include electric stoves, toasters, and blenders. Each appliance uses an energy source and involves energy changes to prepare food.

An open pot of water is heated on the stove. As water boils, the molecules

get larger

get smaller

move faster and farther apart

move slower and closer together

Which of these phrases best describes the most modern theory of the atom?

a hard sphere with positive particles uniformly spread throughout the sphere

a small, dense, positive nucleus surrounded by cloud of negative charges

a large, dense, positive nucleus surrounded by cloud of neutral charges

a hard sphere with negative particles uniformly spread throughout the sphere

Which of the following atoms would most likely gain electrons in a chemical reaction?

F

Rb

Al

Pb

An atom in the ground state contains 8 valence electrons. This atom is classified as

semimetal

noble gas

halogen

metal

Which action will result in a product with new chemical properties?

breaking a mirror

cutting wood

shredding newspaper

popping popcorn

Drag the matter choices to the correct box in the chart.brass

CP Chemistry Semester 1 Midterm

CP Chemistry Semester 1 Midterm

Which element would have properties characteristic of both a metal and a nonmetal?

In the modern Periodic Table, the elements are arranged in order of increasing

Ms. Frizzle measured the mass of a closed beaker containing several ice cubes. The mass was 100 g. An hour later, after the ice cubes had melted, Ms. Frizzle measured the mass of the beaker again.What was the mass of the beaker filled with water the second time?

Which two substances can not be broken down by chemical change?

Which element in Period 3 is the most reactive metal?

Which particles are found in the nucleus of an atom?

What is the total number of valence electrons in an atom of phosphorus (P) in the ground state?

To determine the density of an irregularly shaped object, a student placed the object in 21.2 milliliters of H2O in a graduated cylinder, causing the level of the H2O to rise to 27.8 milliliters. If the object has a mass of 22.4 grams, what was the density of the object?

Which atoms represent different isotopes of the same element?

What happens in the Group 1 (IA) elements of the Periodic Table as you go further down the periods?

Which diagram represents the change from a solid to a liquid state of matter?

Which of the following is an example of a physical change?

Different arrangements of atoms are shown in the figures belowWhich figure represents a mixture?

In which pair do the particles have approximately the same mass?

Which statement correctly describes a sample of gas in a sealed container?

Which element is least likely to undergo a chemical reaction?

After a neutral sulfur atom gains two electrons what is the resulting charge of the ion?

What is the total number of valence electrons in an atom with a total of 13 protons?

What is the mass number of an atom which contains 21 electrons, 21 protons, and 24 neutrons?

At STP (standard temperature and pressure), which substance is the best conductor of electricity?

Which is the atomic number of an atom that forms an ion with 18 electrons and a charge of 2+?

Atoms of metallic elements tend to

Elements X and Y react to from compound XY.How is compound XY different from elements X and Y?

Which statement best describes the nucleus of an aluminum atom?

Which are two properties of most nonmetals?

Jennifer wanted to eat a hard-boiled egg for breakfast. She put the egg in boiling water for fifteen minutes. When she broke the shell, the liquid parts of the egg had become solid. This was because

Which type of matter is composed of two or more different elements that are chemically combined in a whole number ratio?

Which element is considered the most malleable?

In the KitchenCommon kitchen appliances include electric stoves, toasters, and blenders. Each appliance uses an energy source and involves energy changes to prepare food.An open pot of water is heated on the stove. As water boils, the molecules

Which of these phrases best describes the most modern theory of the atom?

Which of the following atoms would most likely gain electrons in a chemical reaction?

An atom in the ground state contains 8 valence electrons. This atom is classified as

Which action will result in a product with new chemical properties?

Ms. Frizzle measured the mass of a closed beaker containing several ice cubes. The mass was 100 g. An hour later, after the ice cubes had melted, Ms. Frizzle measured the mass of the beaker again.
What was the mass of the beaker filled with water the second time?

Different arrangements of atoms are shown in the figures below
Which figure represents a mixture?

Elements X and Y react to from compound XY.
How is compound XY different from elements X and Y?

In the Kitchen
Common kitchen appliances include electric stoves, toasters, and blenders. Each appliance uses an energy source and involves energy changes to prepare food.

An open pot of water is heated on the stove. As water boils, the molecules