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Chemistry > Topic 1 States Of Matter > Flashcards

Topic 1 States Of Matter Flashcards

1
Q

What is the smallest individual building block of elements?

A

Atom

Atomic symbols are used to represent more than 100 types of atom

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2
Q

What is the term for a substance made up of atoms with the same atomic number?

A

Element

Examples include Fe (iron), O (oxygen), H (hydrogen)

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3
Q

What is a compound?

A

Two or more different elements bonded together

Substances that present the same composition

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4
Q

How can matter be classified?

A

According to its physical state and composition

Physical states include gas, liquid, solid; compositions include elements, compounds, mixtures

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5
Q

What is an isotope?

A

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

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6
Q

Define molecule.

A

A neutral entity consisting of two or more atoms held together by chemical bonds

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7
Q

True or False: All compounds are molecules, but not all molecules are compounds.

A

True

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8
Q

What is the formula for ammonia?

A

NH3

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9
Q

What is the difference between atoms and ions?

A

Ions are electrically charged atoms that have lost or gained electrons

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10
Q

Fill in the blank: A __________ is the smallest individual building block of compounds.

A

Molecule

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11
Q

What is the mass number of an atom?

A

Number of protons plus number of neutrons

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12
Q

What does the chemical formula of a compound indicate?

A

How many atoms of each element the molecule contains

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13
Q

Name two types of chemistry.

A
  • Inorganic
  • Organic
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14
Q

What is the atomic number of carbon?

A

6

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15
Q

What happens to a compound when it goes into solution in water?

A

It breaks up into ions

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16
Q

What is the chemical formula for water?

17
Q

What is the significance of valence electrons in chemical bonding?

A

They participate in the bonding of atoms

18
Q

What is the name of the first element in the periodic table?

19
Q

What is the difference between a solid, liquid, and gas in terms of particle arrangement?

A
  • Solid: Regular arrangement, fixed volume
  • Liquid: Fixed volume, no definite shape
  • Gas: Random arrangement, no fixed shape
20
Q

What is the formula for sodium chloride?

21
Q

What does the term ‘Chemical Kinetics’ refer to?

A

The study of the rates of chemical reactions

22
Q

What is the purpose of quizzes in this course?

A

Formative assessment, no grades

23
Q

What is the significance of the atomic number?

A

It represents the number of protons in an atom

24
Q

What is the formula for sulfuric acid?

25
Q

Fill in the blank: The smallest unit quantity of an element is an ________.

26
Q

What is a practical report assessed on in this course?

A

Performance in laboratory classes and online quiz

27
Q

Identify two components of the final mark for the Chemistry in Action module.

A
  • Coursework
  • Exam

Chemistry (7 decks)

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