Science Flashcards

Chemical reactions

1
Q

What colour does a weak acid go.

A

light Green till light orange

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2
Q

what is the name of this salt.
sulfuric + Ammonia —->

A

Ammonia sulfate + water

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3
Q

Is Nitric a alkali or a acid

A

acid

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4
Q

is heat taken in or let out Exothermic

A

heat is given off making the surrounding hotter

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5
Q

Is heat taken in or let out Endothermic

A

Absorbs heat and makes surrounding cooler

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6
Q

What is a type of paper indicator

A

litmus

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7
Q

If litmus goes red is it acid or not

A

acid

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8
Q

If litmus goes blue it is

A

alkial

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9
Q

what does a catalyst do

A

It speeds up a chemical reaction

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10
Q

Can a catalyst be used up

A

no

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11
Q

What works with a catalyst

A

enzymes and catalysts work inside a cell of a living organism

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12
Q

What is the formular for water

A

Hydrogen + oxygen —-> water

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13
Q

calcium + oxygen →

A

calcium oxide

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14
Q

When a metal is mixed with _______ it is called ________.

A

When a metal is mixed with OXYGEN it is called OXIDES.

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