Quiz about 805.💎Physical Science: Chem Semester Final Quizizz

Question 1

What is a nuclear reaction?

Accepted Answer

A process that changes the nucleus of an atom

Answer

A process that involves the rearrangement of electrons in an atom

Answer

A chemical reaction that releases energy

Answer

A reaction that occurs only in stars

Question 2

What is an isotope?

Accepted Answer

Atoms with the same number of protons but different numbers of neutrons

Answer

Atoms with different numbers of protons and electrons

Answer

Atoms with the same number of neutrons but different numbers of electrons

Answer

Atoms with different numbers of protons and neutrons

Question 3

What is a daughter isotope?

Accepted Answer

The isotope that remains after a radioactive decay

Answer

The original isotope before decay

Answer

An isotope that is artificially created

Answer

An isotope that has gained electrons

Question 4

What is beta minus decay?

Accepted Answer

The conversion of a neutron into a proton with the emission of an electron

Answer

The conversion of a proton into a neutron with the emission of a positron

Answer

The emission of an alpha particle from a nucleus

Answer

The absorption of a beta particle by a nucleus

Question 5

What is beta plus decay?

Accepted Answer

The conversion of a proton into a neutron with the emission of a positron

Answer

The conversion of a neutron into a proton with the emission of an electron

Answer

The emission of an alpha particle from a nucleus

Answer

The absorption of a beta particle by a nucleus

Question 6

What is nuclear fission?

Accepted Answer

The splitting of a heavy nucleus into two lighter nuclei

Answer

The process of combining two light nuclei to form a heavier nucleus

Answer

The emission of a neutron from a nucleus

Answer

The absorption of a neutron by a nucleus

Question 7

What is nuclear fusion?

Accepted Answer

The process of combining two light nuclei to form a heavier nucleus

Answer

The splitting of a heavy nucleus into two lighter nuclei

Answer

The emission of a neutron from a nucleus

Answer

The absorption of a neutron by a nucleus

Question 8

What is a proton?

Accepted Answer

A positively charged particle

Answer

A negatively charged particle

Answer

A neutral particle

Answer

A particle with no charge

Question 9

What is a neutron?

Accepted Answer

A neutral particle

Answer

A positively charged particle

Answer

A negatively charged particle

Answer

A particle with a positive charge

Question 10

What is an electron?

Accepted Answer

A negatively charged particle

Answer

A positively charged particle

Answer

A neutral particle

Answer

A particle with no charge

Question 11

What is the atomic number?

Accepted Answer

The number of protons in an atom

Answer

The number of neutrons in an atom

Answer

The total number of protons and neutrons

Answer

The number of electrons in an atom

Question 12

What is the mass number?

Accepted Answer

The total number of protons and neutrons

Answer

The number of protons in an atom

Answer

The number of neutrons in an atom

Answer

The number of electrons in an atom

Question 13

What is average atomic mass?

Accepted Answer

The weighted average of all isotopes of an element

Answer

The mass of the most common isotope

Answer

The mass of the heaviest isotope

Answer

The mass of the lightest isotope

Question 14

What are metals?

Accepted Answer

Elements that are good conductors of heat and electricity

Answer

Elements that are poor conductors of heat and electricity

Answer

Elements that are gases at room temperature

Answer

Elements that are non-reactive

Question 15

What are nonmetals?

Accepted Answer

Elements that are poor conductors of heat and electricity

Answer

Elements that are good conductors of heat and electricity

Answer

Elements that are shiny and malleable

Answer

Elements that are ductile

Question 16

What are periods in the periodic table?

Accepted Answer

Horizontal rows in the periodic table

Answer

Vertical columns in the periodic table

Answer

Groups of similar elements

Answer

Isotopes of elements

Question 17

What are groups in the periodic table?

Accepted Answer

Vertical columns in the periodic table

Answer

Horizontal rows in the periodic table

Answer

Isotopes of elements

Answer

Periods of elements

Question 18

What is an ionic bond?

Accepted Answer

A bond formed by the electrostatic attraction between oppositely charged ions

Answer

A bond formed by the sharing of electron pairs between atoms

Answer

A bond formed by the attraction between free-floating valence electrons and positively charged metal ions

Answer

A bond formed by the sharing of a pair of electrons between two nonmetals

Question 19

What is the octet rule?

Accepted Answer

Atoms tend to gain, lose, or share electrons to have eight electrons in their outer shell

Answer

Atoms tend to gain, lose, or share electrons to have six electrons in their outer shell

Answer

Atoms tend to gain, lose, or share electrons to have ten electrons in their outer shell

Answer

Atoms tend to gain, lose, or share electrons to have four electrons in their outer shell

Question 20

What is a valence electron?

Accepted Answer

An electron in the outermost shell of an atom

Answer

An electron in the innermost shell of an atom

Answer

An electron that is shared between two atoms

Answer

An electron that is lost during a chemical reaction

Question 21

What is an ion?

Accepted Answer

An atom or molecule with a net electric charge due to the loss or gain of one or more electrons

Answer

A neutral atom

Answer

An atom with a full outer shell

Answer

An atom with no electrons

Question 22

What is a cation?

Accepted Answer

A positively charged ion

Answer

A negatively charged ion

Answer

A neutral atom

Answer

An atom with a full outer shell

Question 23

What is an anion?

Accepted Answer

A negatively charged ion

Answer

A positively charged ion

Answer

A neutral atom

Answer

An atom with a full outer shell

Question 24

What is the trend of atomic radius on the periodic table?

Accepted Answer

Decreases across a period, increases down a group

Answer

Increases across a period, decreases down a group

Answer

Increases across a period, increases down a group

Answer

Decreases across a period, decreases down a group

Question 25

What is the trend of ionization energy on the periodic table?

Accepted Answer

Increases across a period, decreases down a group

Answer

Decreases across a period, increases down a group

Answer

Increases across a period, increases down a group

Answer

Decreases across a period, decreases down a group

Question 26

What type of bond involves the sharing of electron pairs between atoms?

Accepted Answer

Covalent Bond

Answer

Ionic Bond

Answer

Metallic Bond

Answer

Hydrogen Bond

Question 27

How many valence electrons does oxygen have?

Accepted Answer

6

Answer

4

Answer

8

Answer

2

Question 28

How many valence electrons does carbon have?

Accepted Answer

4

Answer

2

Answer

6

Answer

8

Question 29

How many valence electrons does nitrogen have?

Accepted Answer

5

Answer

3

Answer

7

Answer

9

Question 30

How many valence electrons does sulfur have?

Accepted Answer

6

Answer

4

Answer

8

Answer

2

Question 31

How many valence electrons does silicon have?

Accepted Answer

4

Answer

2

Answer

6

Answer

8

Question 32

What type of bond is characterized by equal sharing of electrons?

Accepted Answer

Nonpolar Covalent Bond

Answer

Ionic Bond

Answer

Polar Covalent Bond

Answer

Metallic Bond

Question 33

What type of bond is characterized by unequal sharing of electrons?

Accepted Answer

Polar Covalent Bond

Answer

Ionic Bond

Answer

Nonpolar Covalent Bond

Answer

Metallic Bond

Question 34

What are two main types of intermolecular forces?

Accepted Answer

Dipole-Dipole and Hydrogen Bonding

Answer

Ionic and Covalent

Answer

Metallic and Network Solids

Answer

Surface Tension and Phase Change

Question 35

Which of the following is an example of a dipole-dipole force?

Accepted Answer

Hydrogen Bonding

Answer

Ionic Bonding

Answer

Metallic Bonding

Answer

Van Der Waals Forces

Question 36

What is a characteristic of network solids?

Accepted Answer

High melting points

Answer

Low boiling points

Answer

Weak intermolecular forces

Answer

High solubility in water

Question 37

How are phases of matter and intermolecular forces (IMFs) related?

Accepted Answer

the strength of IMFs determine the phase of matter

Answer

Phases of matter determine the strength of IMFs

Answer

They are unrelated

Answer

IMFs only affect gases

Question 38

Which term describes the energy of motion in particles?

Accepted Answer

Kinetic Energy

Answer

Potential Energy

Answer

Thermal Energy

Answer

Chemical Energy

Question 39

What do vapor pressure curves show?

Accepted Answer

The relationship between temperature and pressure

Answer

The phases of matter

Answer

The energy levels of electrons

Answer

The density of a substance

Question 40

Which law states that energy cannot be created or destroyed, only transformed?

Accepted Answer

Law of Conservation of Energy

Answer

Law of Thermodynamics

Answer

Law of Motion

Answer

Law of Gravity

Question 41

What is the measure of the average kinetic energy of the particles in a system?

Accepted Answer

Temperature

Answer

Heat

Answer

Enthalpy

Answer

Pressure

Question 42

What is the term for the energy stored in an object due to its position or arrangement?

Accepted Answer

Potential Energy

Answer

Kinetic Energy

Answer

Thermal Energy

Answer

Electrical Energy

Question 43

What is the term for a reaction that releases heat to its surroundings?

Accepted Answer

Exothermic Reaction

Answer

Endothermic Reaction

Answer

Neutral Reaction

Answer

Catalytic Reaction

Question 44

What is a combustion reaction?

Accepted Answer

A reaction where a substance combines with oxygen, releasing energy.

Answer

A reaction where a substance breaks down into simpler substances.

Answer

A reaction where two substances combine to form a new compound.

Answer

A reaction where a substance loses electrons.

Question 45

Temperature affects reaction rate by:

Accepted Answer

Increasing temperature increases reactant collision energy

Accepted Answer

Increasing temperature increases chance of reactant collision

Answer

Increasing temperature decreases reactant collision energy

Answer

Increasing temperature decreases chance of reactant collision

Question 46

How does concentration affect reaction rate?

Accepted Answer

Increases with increasing concentration

Answer

Increases with decreasing concentration

Answer

Decreases with increasing concentration

Answer

Remains constant regardless of concentration

Question 47

In an exothermic reaction, which has higher energy: reactants or products?

Accepted Answer

Reactants have higher energy than products

Answer

Products have higher energy than reactants

Answer

Energy remains constant

Answer

Energy decreases then increases

Question 48

The potential energy diagram of an endothermic reaction shows that:

Accepted Answer

Products have higher energy than reactants

Answer

Reactants have higher energy than products

Answer

Energy remains constant

Answer

Energy decreases then increases

Question 49

The weaker the intermolecular forces of a substance the _____________ the boiling point

Accepted Answer

lower

Answer

higher

Question 50

What explains the very high melting and boiling point of water

Accepted Answer

Strong hydrogen bonds between water molecules

Answer

Strong dipole-dipole bonds between water molecules

Answer

Dispersion forces which are present in all molecules

Answer

Asymmetrical shape of the polar bonds.

Question 51

What explains the strong surface tension of water?

Accepted Answer

Strong hydrogen bonds between water molecules

Answer

Strong dipole-dipole bonds between water molecules

Answer

Dispersion forces which are present in all molecules

Answer

Asymmetrical shape of the polar bonds.

Question 52

Intermolecular forces are the forces

Accepted Answer

Between molecules

Answer

Within molecules

Question 53

2 NaClO₃ (s) --> 2NaCl (s) +3 O₂ (g)
Convert 12.00 moles of NaClO₃ into grams of O₂. How many stoich steps does this require?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 54

B₂H₆ + 3O₂ -->2 HBO₂ + 2 H₂O
Convert moles of O₂ into moles of B₂H₆. How many stoich steps does this require?

Accepted Answer

1

Answer

2

Answer

3

Answer

4

Question 55

How do you calculate the number of neutrons in an atom?

Accepted Answer

Mass number - atomic number

Answer

Atomic number + mass number

Answer

Atomic number - mass number

Answer

Number of protons + number of electrons

Question 56

Which element has an atomic number of 19?

Accepted Answer

Potassium

Answer

Aluminum

Answer

Magnesium

Answer

Calcium

Question 57

What is the mass number of Potassium-39?

Accepted Answer

39

Answer

19

Answer

39.10

Answer

20

Question 58

How are elements arranged in the periodic table?

Accepted Answer

By increasing atomic number

Answer

By decreasing atomic number

Answer

By alphabetical order

Answer

By atomic mass

Question 59

What does the atomic number represent?

Accepted Answer

The number of protons in the nucleus

Answer

The number of neutrons in the nucleus

Answer

The number of electrons in the nucleus

Answer

The number of atoms in a molecule

Question 60

Which of the following is NOT a characteristic of metals?

Accepted Answer

Brittle

Answer

Shiny

Answer

Ductile

Answer

Malleable

Question 61

What state are most nonmetals at room temperature?

Accepted Answer

Gases

Answer

Solids

Answer

Liquids

Answer

Plasmas

Question 62

How many periods are there in the periodic table?

Accepted Answer

7

Answer

5

Answer

6

Answer

8

Question 63

How are groups identified in the periodic table?

Accepted Answer

By numbers (1-18)

Answer

By letters (A-Z)

Answer

By colors

Answer

By symbols

Question 64

Which groups are considered the transition metals?

Accepted Answer

3-12

Answer

1-2

Answer

13-18

Answer

1-8

805.💎Physical Science: Chem Semester Final Quizizz

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