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Chemistry

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Dennis O'Hara

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Cards in this guide (14)
Acid is correctly diluted with water by this method

adding acid to the water

To heat fluid in a test tube the container should be no more than

1/3 Full

The correct method of removing a glass stopper is to grasp it

between the secon and third finger

Which of these items should be used to heat a solid in the presence of air

a crucible with the lid slightly ajar

The most important part of heating fluid in a test tube is to

maintain a consistent temperature thoughout

Heating the liquid in a test tube

it vapourise from the test tube

If you are traveling at 750000 mms how many kmhr are you traveling

2,700

When reading the volume of fluid in a graduated cylinder the eye should be

Level with the bottom of the fluid's meniscus

Consistent temperature can be achieved while heating a test tube by doing what

Consistent temperature can be achieved by heating a test tube while moving the test tube all around the flame. Do not let only one part of the test tube rest on a flame but instead, keep moving the test tube slowly.

How many significant digits are in the number 85000

Two

How many seconds are in there in one week

There is 604,800 seconds in one week

How many significant digits are in this number 390

Two. The zero is just a placeholder.

How many significant digits are in 1.076000

This number has seven significant digits.

The main reason for learning to correctly pour fluids in a laboratory is to conserve costly chemicals true or fasle

false

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