Lab Flashcards

0
Q

Why do we use a test tube holder?

A

Used to hold a test tube so we can hold it over a Bunsen burner flame to be heated

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1
Q

What do we use TEST TUBES for?

A

Glass tubes used for most reactions

Can be heated

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2
Q

Why do we use a beaker?

A

Glass container for liquids
Can be heated
An approximate volume

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3
Q

What do we use a filter funnel for?

A

Used to help pour liquids into containers

When lined with filter paper, we use it to filter solids from a liquid

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4
Q

What are measuring cylinders used for?

A

To accurately measure the volume of liquids

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5
Q

Conical flasks are used in the same way as ________ cylinders

A

Measuring cylinders

Except we can’t pour them

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6
Q

Use of a tripod?

A

Metal stand that is placed over a Bunsen burner so that beakers etc can be heated

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7
Q

Gauze mat use?

A

Will support glass ware when placed across a tripod stand to be heated

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8
Q

Evaporating dish use?

A

Used to collect solids left behind when liquids are evaporated

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9
Q

5 steps to lighting a Bunsen burner?

A

Step 1. Check for safety

Step 2. Check holes are CLOSED

Step 3. Light the match

Step 4. Turn on the gas

Step 5. Hold the match over the Bunsen burner until it ignites

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10
Q

A lighted wooden splint makes a popping noise in a test tube of _______

A

Hydrogen

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11
Q

A glowing splint reignites in a test tube of _______

A

Oxygen

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12
Q

Bubble the _________ gas through limewater. __________ turns limewater cloudy white

A

Carbon dioxide

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13
Q

Define a hypothesis?

A

A explanation for an observation

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14
Q

An ____ is a desired outcome

A

Aim

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15
Q

100 centimetres = 1 ____

A

Metre

16
Q

1metre = 100 ______

A

Centimetres

17
Q

1000 grams = 1 ______

A

Kilograms

18
Q

1 litre = 1000 _____

A

Millilitres