Answer to Question #61972 in Chemistry for musbahuuuu

Question

1 Which of the following is not a laboratory safety rule?
You should never mix acids with bases
You should tie back your long hair
You should never add water to acid
You should never pour chemicals down the sink
2 Which piece of laboratory equipment can be used to store chemicals for a long period of time?
Burrette
Evaporating dish
Beaker
Pippette
3 Which of these is not a correct use of the bunsen burner?
Turn off the gas valve after use
When not using the bunsen burner for a while, open the air-hole
Never leave the flame unattended
Open the air hole slowly
4 Which of the following can cause error during weighing?
Presence of air currents in the lab
Balance door being open
Non-equilibration of balance
All of the above
5 If you weighed a cold object on the balance, the reading would be _____________.
Higher
Lower
Same
None of the above

Answer 1

1. You should never mix acids with bases
2. Beaker
3. When not using the bunsen burner for a while, open the air-hole
4. All of the above
5. Higher