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Reach For The Top (Trivia For Alex) > Chem Trivia > Flashcards

Chem Trivia Flashcards

1
Q

What is the chemical symbol for water?

A

H2O

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2
Q

True or False: The atomic number of an element represents the number of protons in its nucleus.

A

True

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3
Q

Fill in the blank: The process of a liquid turning into a gas is called _______.

A

evaporation

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4
Q

What is the smallest unit of an element that retains its properties?

A

atom

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5
Q

Which of the following is a noble gas? (A) Oxygen (B) Neon (C) Nitrogen

A

B) Neon

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6
Q

What is the pH level of pure water?

A

7

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7
Q

True or False: All metals are good conductors of electricity.

A

False

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8
Q

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

A

covalent bond

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9
Q

What is the term for the number of protons and neutrons in the nucleus of an atom?

A

mass number

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10
Q

Fill in the blank: The _______ is the central part of an atom containing protons and neutrons.

A

nucleus

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11
Q

Which particle has a negative charge?

A

electron

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12
Q

What is the main gas found in the Earth’s atmosphere?

A

nitrogen

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13
Q

True or False: Chemical reactions can create or destroy atoms.

A

False

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14
Q

What is the name of the table that organizes all known elements?

A

periodic table

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15
Q

Which of the following is a characteristic of acids? (A) Bitter taste (B) Sour taste (C) Slippery feel

A

B) Sour taste

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16
Q

What do you call a substance that speeds up a chemical reaction?

A

catalyst

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17
Q

Fill in the blank: The chemical formula for table salt is _______.

A

NaCl

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18
Q

What is the process of a gas turning into a liquid called?

A

condensation

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19
Q

True or False: Isotopes of an element have the same number of protons but different numbers of neutrons.

A

True

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20
Q

What is the most abundant element in the universe?

A

hydrogen

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21
Q

Which part of the atom has no charge?

A

neutron

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22
Q

What is the state of matter with a definite shape and volume?

A

solid

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23
Q

Fill in the blank: The _______ is the outermost shell of an atom where electrons reside.

A

valence shell

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24
Q

What type of reaction involves the combination of two or more substances to form a new compound?

A

synthesis reaction

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25
Q

Which element is represented by the symbol ‘Fe’?

A

iron

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26
Q

True or False: Bases turn litmus paper red.

A

False

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27
Q

What is the term for the energy required to break a bond in a molecule?

A

bond energy

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28
Q

What is the chemical formula for carbon dioxide?

A

CO2

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29
Q

Fill in the blank: A _______ solution has a pH less than 7.

A

acidic

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30
Q

What do you call a mixture where the components are evenly distributed?

A

homogeneous mixture

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31
Q

Which of the following is a diatomic molecule? (A) O2 (B) CO (C) N2

A

A) O2

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32
Q

What is the primary gas produced during photosynthesis?

A

oxygen

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33
Q

True or False: The law of conservation of mass states that mass can be created or destroyed in chemical reactions.

A

False

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34
Q

What is the name of the horizontal rows in the periodic table?

35
Q

Fill in the blank: The _______ of an element is the average mass of all its isotopes.

A

atomic weight

36
Q

What type of reaction occurs when a compound breaks down into simpler substances?

A

decomposition reaction

37
Q

Which element is represented by the symbol ‘Au’?

38
Q

True or False: Ionic bonds form between metals and nonmetals.

39
Q

What is the process of a solid turning directly into a gas called?

A

sublimation

40
Q

Fill in the blank: The _______ of a liquid is the temperature at which it boils.

A

boiling point

41
Q

What is the term for a negatively charged ion?

42
Q

Which of the following is a property of metals? (A) Brittle (B) Malleable (C) Poor conductor

A

B) Malleable

43
Q

What is the name of the vertical columns in the periodic table?

44
Q

True or False: A chemical formula indicates the number and type of atoms in a molecule.

45
Q

What is the term for a positively charged ion?

46
Q

Fill in the blank: The _______ is the measure of how much matter is in an object.

47
Q

What type of reaction involves the release of energy, often in the form of heat?

A

exothermic reaction

48
Q

Which element is a liquid at room temperature?

49
Q

True or False: Nonmetals are typically good conductors of heat and electricity.

50
Q

What is the chemical formula for ammonia?

51
Q

Fill in the blank: The _______ is the force that holds atoms together in a molecule.

A

chemical bond

52
Q

What is the term for the temperature at which a solid becomes a liquid?

A

melting point

53
Q

Which of the following elements is a halogen? (A) Chlorine (B) Helium (C) Sodium

A

A) Chlorine

54
Q

What is the process of a solid turning into a liquid called?

55
Q

True or False: The periodic table is arranged by increasing atomic mass.

56
Q

What is the term for a reaction that absorbs energy?

A

endothermic reaction

57
Q

Fill in the blank: The _______ of a solution is a measure of how much solute is dissolved in a solvent.

A

concentration

58
Q

What is the chemical symbol for the element carbon?

59
Q

True or False: Acids have a pH greater than 7.

60
Q

What is the term for the ability of a substance to dissolve in another substance?

A

solubility

61
Q

Which of the following is a common property of bases? (A) Sour taste (B) Slippery feel (C) Turns blue litmus red

A

B) Slippery feel

62
Q

What is the chemical formula for glucose?

63
Q

Fill in the blank: The _______ is the part of a solution that is dissolved.

64
Q

What is the term for the change of state from gas to solid?

A

deposition

65
Q

True or False: All liquids have a definite shape.

66
Q

What is the chemical symbol for sodium?

67
Q

What type of reaction occurs when two substances exchange ions?

A

double displacement reaction

68
Q

Fill in the blank: A _______ reaction involves the combination of oxygen with a substance, releasing energy.

A

combustion

69
Q

What is the term for the energy stored in chemical bonds?

A

chemical energy

70
Q

True or False: All acids contain hydrogen.

71
Q

What is the process called when a gas changes to a solid without becoming a liquid first?

A

deposition

72
Q

Which of the following is a characteristic of metals? (A) Dull appearance (B) Good conductivity (C) Low density

A

B) Good conductivity

73
Q

What is the chemical formula for sulfuric acid?

74
Q

Fill in the blank: The _______ is the part of a solution that does the dissolving.

75
Q

What is the name of the reaction that occurs when an acid reacts with a base?

A

neutralization reaction

76
Q

True or False: Chemical changes can be reversed easily.

77
Q

What is the term for the amount of space an object occupies?

78
Q

What is the chemical symbol for chlorine?

79
Q

Fill in the blank: A _______ is a change in which one or more substances are converted into different substances.

A

chemical reaction

80
Q

Which of the following is a property of nonmetals? (A) Malleable (B) Good insulator (C) High melting point

A

B) Good insulator

81
Q

What is the term for the process of separating a mixture based on differences in boiling points?

A

distillation

82
Q

True or False: The density of a substance is its mass divided by its volume.

83
Q

What is the chemical formula for hydrogen peroxide?

Reach For The Top (Trivia For Alex) (5 decks)

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