Cards in this guide (17)
Acid is correctly diluted with water by this method
To heat fluid in a test tube the container should be no more than
If too much material is removed from a reagent container the excess can be safely returned to the container if it has not touched anything
False. It is impossible not to have touched anything.
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
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.
A space probe has returned samples to earth of crystals found on a distant planet In studying these crystals scientist discovered that a 0994g sample will absorb 2027 J heat when the temperature
How many significant digits are in the number 85000
Which of these measurements has 2 significant digits 50.4 g
50.4 has three significant digits.
How many seconds are in there in one week
There is 604,800 seconds in one week
How many significant digits are in 1.076000
This number has seven significant digits.
How many significant digits are in this number Type the correct answer then press Enter. 50.00
Four significant digits in 50.00.
The main reason for learning to correctly pour fluids in a laboratory is to conserve costly chemicals true or fasle