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Why is it not possible to use the luminous flame?
A luminous flame causes the beaker to have soot at the bottom and the luminous flame also does not heat it up properly.
Why should you use a non luminous flame instead of luminous flame?
Because if you use luminous flames the beaker you use will have a soot at the bottom and it does not heat it up properly but instead of using non luminous flames it will be heated properly.
How do you separate naphthalene from a mixture of KBr and sand?
Put it in a beaker. Use a smaller beaker filled half way with ice and water and place in the larger one. It should be about and inch or two obove the mixture. Heat over a bunsen burner and the Naphthalene will deposit on the bottom of the smaller beaker.
What happened inside a beaker and on the bottom of the glass cover after you heated the water in the beaker?
Water can be condensed on the bottom of the glass cover.
Why is it important to let the sand settle first at the bottom of the beaker before pouring the solution into another beaker?
It is important to let the sand settle at the bottom of your beaker so that the sand is separated from the liquid.
Why is it not possible to use the luminous flame?
A luminous flame causes the beaker to have soot at the bottom and the luminous flame also does not heat it up properly.
Why should you use a non luminous flame instead of luminous flame?
Because if you use luminous flames the beaker you use will have a soot at the bottom and it does not heat it up properly but instead of using non luminous flames it will be heated properly.
How do you separate naphthalene from a mixture of KBr and sand?
Put it in a beaker. Use a smaller beaker filled half way with ice and water and place in the larger one. It should be about and inch or two obove the mixture. Heat over a bunsen burner and the Naphthalene will deposit on the bottom of the smaller beaker.
What happened inside a beaker and on the bottom of the glass cover after you heated the water in the beaker?
Water can be condensed on the bottom of the glass cover.
If a liquid is added to a beaker the pressure exerted by the liquid on the bottom of the beaker?
Decreases!
Why was it important not to let the thermometer rest on the bottom of the breaker?
to get an accurate reading of the liquid inside the beaker, the thermometer should not rest on the bottom of the beaker.
Why is it important to let the sand settle first at the bottom of the beaker before pouring the solution into another beaker?
It is important to let the sand settle at the bottom of your beaker so that the sand is separated from the liquid.
What happen if heat is applied mat the bottom of the test tube?
differentiate luminous flame from non-luminous flame
Kate and Janie are about to pour water into a beaker when they notice the beaker has a crack at the bottom. What should the students do with the beaker?
Inform their teacher and then throw the beaker in the broken glass
Observation of potassium permanganate and water?
at the bottom of the beaker
What is it called when the solution settle to the bottom of a beaker?
hotter
Why is it important to have the bulb of a thermometer submerged in liquid without touching the sides or bottom of the beaker?
The sides or bottom of the beaker will likely be at a significantly different temperature than the liquid.
