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What do you call the chemical substance at the tip of the matchstick?
a sulphur compound (eg: antimony trisulpide) and pottasium
Which of the following seedlings will probably bend toward the light?
one whose tip is separated from its base by a gelatin block
Why does a matchstick burn on rubbing it on the side of a matchbox?
The heads of strike-anywhere matches are composed of two parts, the tip and the base. The tip contains a mixture of phosphorus sesquisulfide and potassium chlorate. Phosphorus sesquisulfide is a highly reactive, non-toxic chemical used in place of white phosphorus. It is easily ignited by the heat of friction against a rough surface.
Why does a matchstick burn on rubbing it on the side of the matchbox?
The heads of strike-anywhere matches are composed of two parts, the tip and the base. The tip contains a mixture of phosphorus sesquisulfide and potassium chlorate. Phosphorus sesquisulfide is a highly reactive, non-toxic chemical used in place of white phosphorus. It is easily ignited by the heat of friction against a rough surface.
Why does a matchstick burns on rubbing it on the side of the matchbox?
The heads of strike-anywhere matches are composed of two parts, the tip and the base. The tip contains a mixture of phosphorus sesquisulfide and potassium chlorate. Phosphorus sesquisulfide is a highly reactive, non-toxic chemical used in place of white phosphorus. It is easily ignited by the heat of friction against a rough surface.
Cleaning Your Matchstick Blinds?
Getting matchstick blinds for your home can be a great idea. They look wonderful and they often come at a relatively cheap price. However, they can be difficult to manage, and they often get dirty. Here is a very helpful tip concerning matchstick blinds - if you are planning on cleaning them any time soon, then you should consider using a vacuum cleaner. Simply attach an external hose to your vacuum cleaner and use it to reach the more difficult spots on your vacuum cleaner. Do this once a week and it will make your blinds look absolutely wonderful.
Is the tip of your thumb 1 inch?
yes, in ancient times people used the tip of their finger to measure out an inch. they also used the length from the tip their finger to the other tip of their finger to measure the persons height.
What is the hardest ferrule that you can use on a pool cue tip?
Any material can be used as a ferrule on a pool cue, but not all materials can be used for the tip. G10 is a type of fiberglass and is the hardest that can be used for both the ferrule and the tip. There are also cues that have stainless steel or brass ferrules, but these cannot be used as the tip material.
How do you complete level 13 on Dooors?
Grab the matchstick thing by clicking the left fire. Then turn your device to the left until a green light above the door lights up. Then tip it to the right until a green light goes on... do the same thing to the left and right until they are all lit. Tap to open the door. You will see a cobweb. Highlight the fire/matchstick in your inventory and then click on the web. It will disappear. Then you can go through the door.
What type of shaping pipe is used when making eclairs?
A large star tip (nozzle) is used for piping eclairs.
What are the tail - to - tip method?
The tail-to-tip method is used when adding vectors on a graph. With the tip-to-tail method you must place the tail of B so that it touches the tip of A.
Why is the tip of the chisel cooled rapidly by quenching in water but the main shaft is allowed to cool slowly in air?
this is so that the tip of the chisel needs to be hardened or it will go blunt too quick. by heating the tip and then putting it in water it freeze the molecules together, making it hardened. (just finshed making a chisel at school)
