Fill in the blanks with the words in the following list.
apron
doing
msds
drink
eat
mix
goggles
safety shower
water
acids
rule number one in laboratory safety is know what you are
doing
.
the best protections from chemical splashes and spills are an
to cover your body and
for your eyes.
never
eat
food or
drink
liquids from a lab container, even if it has been thoroughly washed.
rinse skin thoroughly with
water
after a chemical splash.
a
should be used for more significant spills.
pour
acids
into water, never the other way around.
do not
mix
chemicals unless you know what the product of the reaction will be.
a
describes important safety and reactivity information about a chemical.
fill in the blanks

a mercury barometer is a device that uses the physical properties of mercury in a tube to measure barometric pressure. mercury barometers are used for : -

1. measurement of atmospheric pressure  

2. determining the altitude of a place

3. weather forecasting

4. calibration and checking of aneroid barometers

5. application in fluid mechanics

6. measurement of pressure in aircrafts

7. surface weather analysis

8. preparation of barographs

9. usage in physical sciences like physics, astronomy & chemistry

10. preparation of aircraft altimeters

characteristics of mercury barometer : -

1.used to define and measure atmospheric pressure.

2.on the average at sea level the column of mercury rises to a height of about 760 mm.

3.this quantity is equal to 1 atmosphere.

4.it is also known as standard atmospheric pressure.

5.a barometer in which the weight of a column of mercury in a glass tube with a sealed top is balanced against that of the atmosphere pressing on an exposed cistern of mercury at the base of the mercury column, the height of the column varying with atmospheric pressure.