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Luminous flame produce deposit on the bottom of the beaker because when the beaker is near the flame, it limits the amount of oxygen for the methane, thus, the deposit (which is Carbon), is produced.
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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 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.
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
What are the disadvantages of luminous flame?
A luminous flame is not suitable for heating as it gives out soot (A black powdery or flaky substance consisting largely of amorphous carbon, produced by the incomplete burning of organic matter).
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 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 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.
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
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.
Why is it not allowed to let the bulb of the temperature touch the bottom nor sides of the beaker that contains your liquid measuring the temperature?
The bottom and sides of the beaker will be hotter than the liquid inside.
If you put a chicken bone in vinegar would there a deposit at the bottom and what would this deposit be?
There is a deposit. I did this experiment and there was a deposit. Use a microscope or a magnifying glass.
What will happen to dye crystals initially in the bottom of a beaker of water over a long period of time?
They will diffuse equally throughout the beaker
Where should a beaker be placed with respect to the flame for the most efficient heating on Bunsen burner?
The most efficient, and safe, place for a beaker to be heated is above the flame. Have the beaker held up by the proper metal stand and have it held so that the flame is grazing the bottom of the beaker. Be careful though, the flame should only graze the bottom of the beaker so that the chemical doesn't heat up too quickly.
