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Science (S2) > Changing Materials > Flashcards

Changing Materials Flashcards

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0
Q

What’s being dissolved?

A

Solute

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1
Q

What is another name for a grinding bowl?

A

Mortar

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2
Q

This type of water has been purified?

A

Distilled

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3
Q

Will not dissolve?

A

Insoluble

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4
Q

Separation technique involving evaporation followed by condensation?

A

Distillation

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5
Q

What’s collected in the filter paper?

A

Residue

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6
Q

Increases when more solute is dissolved in a solvent?

A

Concentration

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7
Q

Decreases the pH of an acid towards 7?

A

Diluting

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8
Q

Liquid collected during filtration?

A

Filtrate

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9
Q

A chemical which speeds up a chemical reaction but is not used?

A

Catalyst

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10
Q

Substance doing the dissolving?

A

Solvent

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11
Q

The kind of change which does not involve the formation of a new substance?

A

Physical

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12
Q

Gas which burns with a pop?

A

Hydrogen

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13
Q

Will dissolve?

A

Soluble

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14
Q

This solution is “full up” with solute?

A

Saturated

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15
Q

What happens to the solubility of Ammonia as the temperature increases?

A

The solubility increases

16
Q

Gases behave differently compared with solid solutes. What is different about the line graph (solubility curve) for most solids dissolving in water?

A

The line graph slopes upwards

17
Q

Name three ways in which a reaction could be speeded up?

A
  1. Increasing the temperature
  2. Catalyst
  3. Cutting up solids into smaller pieces
18
Q

Write a word equation for the reaction?

A

Nitric Acid + Sodium Hydroxide ▶️ Sodium Nitrate + Water

19
Q

Sodium Hydroxide is the opposite of an acid. What type of chemical is it?

A

Alkali

20
Q

What pH must Nitric Acid have?

A

Less than 7

21
Q

Name the type of reaction in the question?

A

Neutralisation

22
Q

What is always formed when a chemical reaction takes place?

A

A new substance

23
Q

If enough pure water is added to Nitric Acid, what pH number will the
liquid have?

A

pH 7

24
Q

What could you use to check the pH number?

A

Universal Indicator or pH paper

25
Q

Write the word equation for the reaction if Nitric Acid were to be reacted with Magnesium Hydroxide instead?

A

Nitric Acid + Magnesium Hydroxide ▶️ Magnesium Nitrate

26
Q

Acid rain reacts with marble statues, damaging them. Give one other effect of acid rain?

A

Speeds up corrosion of metal

Science (S2) (3 decks)

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