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sci invetagation > reactivity > Flashcards

reactivity Flashcards

1
Q

what is the formula and charge of an ammonium ion?

A

NH₄⁺

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2
Q

what is the formula and charge of a nitrate ion?

A

NO₃⁻

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3
Q

what is the formula and charge of a hydroxide ion?

A

OH⁻

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4
Q

what is the formula and charge of a sulfate ion?

A

SO₄²⁻

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5
Q

what is the formula and charge of a carbonate ion?

A

CO₃²⁻

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6
Q

metal + acid →

A

salt + hydrogen

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7
Q

metal oxide + acid →

A

salt + water

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8
Q

metal hydroxide + acid →

A

salt + water

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9
Q

metal carbonate + acide →

A

salt + water+ carbon dioxide

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10
Q

neutralisation =

A

the reaction between a base and acid to produce a salt and water

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11
Q

what is the formula of
hydrochloric acid
sulfuric acid
nitrate acid

A

HCl
H₂SO₄
HNO₃

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12
Q

molten =

A

in a liquid state

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13
Q

what is the reactivity scale order? which way does it increase in reactivity?

A

potassium
sodium
calcium
magnesium
zinc
iron
copper
Silver
gold

bottom to top increase

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14
Q

what is a thermite reaction used for

A

welding on big scales eg railway tracks

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15
Q

what is the symbol equation for iorn + copper sulphate → copper + iorn sulphate

A

Fe + CuSo₄ → Cu + FeSo₄

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16
Q

displacement reaction

A

a reaction in which a more reactive metal ‘pushes out’ a less reactive one from a compound

17
Q

what metals can carbon displace?

A

zinc
iron
tin
lead

18
Q

what is the reaction in a blast furnace?

A

iron oxide + carbon > iron + carbon dioxed

19
Q

what happens when you combine carbonates with acid? what is the equation?

A

it makes other salts
acid + carbonate > salt + water + carbon dioxide

20
Q

exothermic reaction

A

gives out energy and the temp increases

21
Q

endothermic reaction

A

takes in energy and temp decreases

22
Q

what is nuetralisation

A

to change an acid or alkaline solution to one that has a ph of 7

23
Q

what is the equation for neutralization?

A

acid + alkali > salt + water

24
Q

what is a base?

A

a metal oxide

25
Q

what is the law of conservation?

A

that matter can’t be created or destroyed

note: mass can leave and go somewhere else

26
Q

Filtration

A

the action or process of filtering something.

27
Q
A

sci invetagation (1 decks)

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