N Flashcards

(10 cards)

0
Q

Copper family?

A

Copper, silver, gold

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1
Q

Rechargeable batteries? 2 elements

A

Cadmium, nickel

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2
Q

Composition of air

A

21% oxygen. 78% nitrogen

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3
Q

Compound of glass and sand

A

Silicon dioxide

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4
Q

Iron family

A

Iron, cobalt, nickel

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5
Q

Iron to produce steel- 4 elements

A

Chromium vanadium cobalt nickel

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6
Q

2 hardest

A

Corundum

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7
Q

Thermometers

A

Mercury

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8
Q

Nuclear weapons

A

Plutonium

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9
Q

Pollution control devices

A

Platinum

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