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Chem Fall 2023 Make Up Midterm

Last updated almost 2 years ago

30 questions

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Question 1

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Question 2

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Question 3

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Question 4

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Question 5

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Question 6

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Question 7

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Question 8

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Question 9

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Question 10

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Question 11

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Question 12

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Question 13

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Question 14

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Question 15

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Question 16

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Question 17

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Question 18

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Question 19

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Question 20

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Question 21

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Question 22

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Question 23

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Question 24

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Question 25

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Question 26

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Question 27

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Question 28

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Question 29

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Question 30

30.

How many valence electrons does Calcium (Ca) have?

5

2

7

1

Which of these elements has six valence electrons?

Boron

Carbon

Oxygen

Sodium

Nitrogen will ____________ to make an ion

lose three electrons

gain three electron

lose five electrons

lose three electrons

Name an element that makes +2 ions.

Helium

Sulfur

Potassium

Magnesium

What charge ion does aluminum make?

-2

+3

+2

-3

Which of the following will produce a cation?

Chlorine

Sulfur

Carbon

Lithium

Why doesn't neon make ions?

Because it is a gas

Because it has 10 valence electrons

Because it has a full shell of valence electrons

Because it is a metal

True or False: Metals form anions

True

False

Which of the alkaline earth metals will has the largest electronegativity?

Magnesium

Radium

Barium

Calcium

Which of the following elements has the largest atomic radius?

Silicon

Potassium

Helium

Boron

Which of these halogens has the smallest ionization energy?

Fluorine

Bromine

Chlorine

Iodine

How many electrons does a neutral chlorine atom have?

17

18

8

35

An atom has a mass number of 48 and a atomic number of 22.  What element is it?

Cadmium

Sodium

Titanium

Gallium

An atom has 7 protons, 7 electrons, and 8 neutrons.  What is its mass number?

8

15

14

7

An atom has 27 protons, 27 electrons, and 28 neutrons.  What element is it?

Aluminum

Nickel

Cesium

Cobalt

Which of the following elements is a metalloid?

Carbon

Arsenic

Tin

Aluminum

What is NOT true of the halogens?

They are highly reactive.

Some of them are gases.

They combine with alkali metals to make salts,

They are metals.

Who developed the first atomic theory by building on the research of Antoine Lavoisier and Joseph Proust?

Dmitri Mendeleev

JJ Thomson

Neils Bohr

John Dalton

What did JJ Thomson’s experiments lead him to believe the atom was most like?

The solar system

A billiard ball

Plum pudding

A football field

How many neutrons does Copper-63 have?

63

29

34

92

What atom has 12 protons?

Carbon

Magnesium

Lithium

Sodium

What particle has the least mass?

Proton

Neutron

Electron

Nucleus

Which of these elements is a halogen?

Lithium

Bromine

Argon

Calcium

What group is magnesium in?

Alkali Metals

Noble Gases

Halogens

Alkaline Earth Metals

Which of the following is a property of non-metals?

They are malleable.

They are good conductors.

They are shiny.

They are brittle.

Which statement correctly describes a solid in a container?

Takes the shape and volume of a container

Maintains volume, but takes the shape of the container

Maintains shape, but takes the volume of the container

Maintains shape and volume

Which of the following are incompressible?

Liquids and Gases

Just Gases

Gases and Solids

Solids and Liquids

What is it called when a gas becomes a liquid?

Deposition

Sublimation

Condensation

Evaporation

Which of the following is a chemical change?

Sugar dissolving in water

A piece of paper ripped in half

Water freezing

A log burning

Which of the following is a homogenous mixture?

Salt water

Carbon dioxide

Oxygen

A taco