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Year 8 > Chemistry > Flashcards

Chemistry Flashcards

1
Q

Is PH7+ acid or alkali?

A

Alkali.

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2
Q

Who invented the modern day periodic table?

A

Dmitri Mendeleev.

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3
Q

What colour does the universal indicator turn when it interacts with an alkali?

A

Blue/Purple.

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4
Q

What colour does the universal indicator turn when it interacts with an acid?

A

Orange/Red/Yellow

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5
Q

What salt does hydrochloric acid form?

A

Chloride.

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6
Q

What acid does sulphate come from?

A

Sulphuric acid.

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7
Q

What salt does nitric acid form?

A

Nitrate.

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8
Q

What is an exothermic reaction?

A

A reaction that gives off heat.

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9
Q

What is an endothermic reaction?

A

A reaction that absorbs heat.

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10
Q

What is the most reactive metal in the reactivity series?

A

Potassium.

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11
Q

What is the least reactive metal in the reactivity series?

A

Platinum.

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12
Q

How is igneous rock formed?

A

Igneous rock forms when magma solidifies.

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13
Q

How are metamorphic rocks formed?

A

Metamorphic rocks are formed when pre-existing rock is exposed to high heat or high pressure or a combination of the two.

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14
Q

How are sedimentary rocks formed?

A

Sedimentary rocks are formed from the broken remains of other rocks that become joined together.

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15
Q

What are the three rock groups?

A
  • Sedimentary
  • Metamorphic
  • Igneous
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16
Q

Name three pollutants

A
  • Nitrogen dioxide (NO2)
  • Carbon Monoxide (CO)
  • Sulfur dioxide (SO2)
17
Q

Name 4 ways of separating mixtures

A
  • Distillation
  • Filtration
  • Evaporation
  • Chromatography
18
Q

What is diffusion?

A

Diffusion is the movement of particles from an area of high pressure to an area of low pressure.

19
Q

What is a solvent?

A

A solvent is a liquid that has a solute added to it to make a solution.

20
Q

What is a solute?

A

A solute is something that is added to a solvent to make a solution.

Year 8 (7 decks)

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