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Science (chemistry) > C1- Atomic Structure > Flashcards

C1- Atomic Structure Flashcards

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1
Q

How many types of atoms do elements contain?

A

Only 1

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2
Q

How many types of atoms do compounds contain?

A

More than 1

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3
Q

What are the reactants in a chemical reaction?

A

The substances you start with

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4
Q

What are the products in a chemical reaction?

A

The new substances made

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5
Q

Whats the state symbol for a solid?

A

(s)

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6
Q

Whats the state symbol for a liquid?

A

(L)

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7
Q

Whats the state symbol for a gas?

A

(g)

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8
Q

Whats the state symbol for an aqueous solution?

A

(aq)

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9
Q

Compounds

A

Two or more substances chemically bonded

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10
Q

Mixtures

A

Two or more substances that are not chemically bonded

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11
Q

Whats the composition of compounds like?

A

Fixed

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12
Q

Whats the composition of mixtures like?

A

Not fixed

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13
Q

How are compounds separated?

A

Chemical chemical reactions

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14
Q

Describe the bonds a compound

A

There are chemical bonds between the atoms of the different elements

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15
Q

Describe the chemical bonds in a mixture

A

There are no chemical bonds

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16
Q

Name 3 different methods of separating mixtures

A
  • filtration
  • crystallisation
  • fractional distillation
  • simple distillation
  • chromatography
17
Q

Why is the separation of mixtures using fractional/simple distillation possible?

A

Because of the different boiling points fo the liquids in the mixture

18
Q

Why is the separation of mixtures using chromatography possible?

A

Because of (the substances) their different solubilities in the solvent used

19
Q

Solvent

A

A solvent is the component of a solution that is present in the greatest amount. It is the substance in which the solute is dissolved. Examples: ​ The solvent for seawater is water

20
Q

Solute

A

A solute is defined as the substance that is dissolved in a solution

21
Q

Plum pudding model

A

A ball of positive charge with electrons stuck in the.m

22
Q

Who discovered electrons and the plum pudding model?

A

JJ Thomson

23
Q

What did Rutherford discover about the structures if the atom after the alpha scattering experiment?

A

That the nucleus had a positive charge

24
Q

What did James chadwick discover about the structure of the atom?

A

That the nucleus also contained neutral particles which we call neutrons

Science (chemistry) (6 decks)

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