Chemical Reactions & Equations Flashcards by Dawid Potiopa

Q

Metal + Acid →

A

Salt + Hydrogen

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Q

Metal + Water →

A

Metal Hydroxide + Hydrogen

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Q

Acid + Base →

A

Salt + Water

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Q

Balance: Mg + HCl → H₂ + MgCl₂

A

Mg + 2HCl → H₂ + MgCl₂

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Q

Balance: Fe + O₂ → Fe₂O₃

A

4Fe + 3O₂ → 2Fe₂O₃

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Q

What salt from magnesium + sulfuric acid?

A

Magnesium sulfate

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Q

What salt from magnesium + hydrochloric acid?

A

Magnesium chloride

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Q

Formula for water?

A

H₂O

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Q

Formula for carbon dioxide?

A

CO₂

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Q

What is neutralisation?

A

Reaction between acid and base to form salt and water

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Q

pH of neutral solution?

A

7

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Q

pH range for acids?

A

0-6 (less than 7)

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Q

pH range for alkalis?

A

8-14 (greater than 7)

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Q

What does red litmus in alkali become?

A

Blue

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Q

What does blue litmus in acid become?

A

Red

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Q

Formula for hydrochloric acid?

Study These Flashcards

A

HCl

Q

Formula for sulfuric acid?

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A

H₂SO₄

Q

Strong acid example?

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A

Hydrochloric acid, sulfuric acid, nitric acid

Q

Strong alkali example?

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A

Sodium hydroxide, potassium hydroxide