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Chemistry Flashcards

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1
Q

What are isotopes?

A

Atoms of the same element which have different number of neutrons

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2
Q

What are group 1 known as in the periodic table?

A

Alkali metals

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3
Q

What are group 2 known as in the periodic table?

A

Alkaline earth metals

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4
Q

What are group seven known as?

A

Halogens

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5
Q

What are group eight known as?

A

Noble gases

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6
Q

What is an ion?

A

An ion is a charged atom or group of atoms

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7
Q

What is an ionic bond?

A

An ionic bond is the force of attraction between oppositely charged ions

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8
Q

What is a covalent bond?

A

A covalent bond is formed when electrons are shared between non-metal ions

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9
Q

What is a solute?

A

The substance being dissolved

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10
Q

What is the solvent?

A

The liquid the solute is dissolving in

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11
Q

What is a solution?

A

The solute and solvent

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12
Q

What is soluble?

A

If a substance dissolves in a solvent it is said to be soluble

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13
Q

What does insoluble mean?

A

A substance that can’t dissolve

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14
Q

What is crystallization?

A

The formation of crystals by cooling a saturated solution?

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15
Q

What is a dilute solution?

A

A small amount of solute in a large amount of solvent

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16
Q

What is a saturated solution?

A

A solution that contains as much dissolved solute as possible at that temperature

17
Q

What is chromatography?

A

A method used to separate a mixture of substances which are in a solution.

18
Q

What is a mixture?

A

Is made up of two or more substances mingled together but not chemically combined

19
Q

What is distillation?

A

A method used to separate substances which have different biking points eg. Alcohol and water

20
Q

What is filtering?

A

A method used to separate an insoluble solid from a liquid

21
Q

What are the 3 states of matter?

A

Liquid, gas, solid

22
Q

What is an element?

A

A substance made up of only one type of atom

23
Q

What is a molecule?

A

Composed of two or more atoms chemically combined

24
Q

What is a compound?

A

Consists of two or more elements chemically combined

25
Q

What is an atom?

A

The smallest part of an element which still has the properties of that element.

26
Q

What is the weight, charge and location of the electron?

A

Mass:negligible
Charge:negative
Location:orbiting the nucleus

27
Q

What is the mass, charge and location of the neutron?

A

Mass: 1 unit
Charge: no charge
Location: nucleus

28
Q

What is the charge, mass and location of the proton?

A

Mass: 1 unit
Charge: positive
Location: nucleus

29
Q

What is the atomic number?

A

Number of protons in an atom of that element

30
Q

What is the mass number of an element?

A

The total number of protons and neutrons in that element

Science (4 decks)

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