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Chemistry > Chem > Flashcards

Chem Flashcards

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1
Q

what are elements in the periodic table represented by?

A

Their Nuclear symbol

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2
Q

Sodium reacts quickly with oxygen so it must be..

A

Stored in oil to stop this reaction. When Sodium reacts with water it produces heat.

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3
Q

What are the majority of elements of the periodic table

A

Metals

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4
Q

True or False. Some Metals are very reactive

A

True

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5
Q

Does copper react with water?

A

No Because it is low on the reactivity series

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6
Q

Copper is not described as unreactive because..

A

It slowly reacts with other substances

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7
Q

Definition of Extract

A

To take something out of something

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8
Q

Definition of reactivity

A

When a substance undergo’s a chemical reaction

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9
Q

Definition Of Reactivity Series

A

A list of elements in order of their reactivity series. Mainly in order from most reactive to least reactive

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10
Q

Definition of Unreactive

A

When a substance is unreactive/doesn’t take part in a chemical reaction

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11
Q

What happens when a metal reacts with another substance?

A

The metal atom loses an electron on the outermost shell

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12
Q

why are group 1 metals reactive?

A

Because they only have 1 electron to lose to become fully stable

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13
Q

what can a more reactive metal do?

A

Can push out a less reactive metal from its compound

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14
Q

what is displacement?

A

takes place of another substance in a chemical reaction

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15
Q

what is a solution?

A

A mixture formed by a solvent and solute

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16
Q

what is oxidation?

A

The gain of oxygen and the loss of electrons

16
Q

what is a redox reaction?

A

where both Reduction and oxidation take place at the same time.

17
Q

what is reduction?

A

The gain of electrons and the loss of oxygen

18
Q

What is a mineral?

A

A natrually occuring metal compound

19
Q

what is a molten?

A

A liquid substance formed by heating a solid

20
Q

What is Ore?

A

A type of rock that has enough of a metal or mineral in it to make it worth taking the metal out.

21
Q

What is reducing agent?

A

A chemical that causes reduction by removing oxygen in a reaction.

Chemistry (11 decks)

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