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science > Chemical Reactions > Flashcards

Chemical Reactions Flashcards

1
Q

What is a chemical reaction

A

Non-reversible reaction

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2
Q

What is a physical reaction

A

A reversible reaction

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3
Q

What is MASH

A

Metal + Acid —> Salt + Hydrogen
Iron + sulphuric acid –> iron sulphate + hydrogen
Fe + H2SO4 —> FeSO4 + H2 ????

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4
Q

What are the two types of reaction?

A

Chemical and physical

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5
Q

What is a base?

A

When a substance has a pH higher than 7 and has a high concentration of hydroxyl ions e.g. metal oxides and carbonates

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6
Q

What does neutralise mean

A

To be made neutral by removing any acidic or alkaline nature

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7
Q

What is CASHOCO

A

Carbonate + Acid —> Salt + Water + Carbon Dioxide
Magnesium carbonate + hydrochloric acid –> magnesium chloride + water + carbon dioxide
MgCO3 + 2HCL –> mgCl2 + H2O + CO2

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8
Q

What is the test for MASH?

A

Squeaky pop test, bubbles

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9
Q

What is the test for CASHOCO

A

Cloudy water test

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10
Q

What does it mean for an acid when basho happens

A

It has been neutralised

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11
Q

How is a salt formed (name)

A

Metal + suffix

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