Paper must be heated to start burning because heat is required to break down the cellulose fibers in the paper and initiate the chemical reaction of combustion. This process releases energy in the form of heat and light, causing the paper to continue burning once it has started.
1. Never heat alcohol directly on naked flame 2. you should take a beaker with boiled water in it and then place the alcohol with the test tube in it 3. you should wear goggles while heating alcohol. 4. never smell the alcohol directly after heating
The products contain more energy than the reactants.
Oxygen must be at least 16% of the atmosphere to sustain the burning process. Below this level, fires may not be able to burn efficiently or sustain themselves.
Water vapor is not a byproduct of burning coal that must be restricted in order to produce clean coal. Other byproducts such as carbon dioxide, sulfur dioxide, nitrogen oxides, and particulate matter must be limited to achieve cleaner coal production.
Metals conductThe coin is made of metal or a metal alloy. Metals are excellent conductors of heat and electricity. When you place the paper and coin directly over the flame, the coin conducts heat away from the paper. If the coin conducts heat away from the paper at least as fast as the flame adds thermal energy to the paper, it will not reach its flash point and will fail to ignite. It may not even scorch. If the coin, however, cannot dissipate the heat to the surrounding air and itself heats up, it will no longer act as an efficient conductor, and the paper will eventually burn.Though not nearly as much, I imagine it also has some to do with the slight lack of oxygen that is available with the coin over the paper.
You must always start burning, on the safety flame.
To prevent gas burning you must either stop it from mixing with oxygen or avoid it becoming heated (by a spark for example) All fires require fuel, oxgyen and a source of heat. To put out a burning gas usually the technique is simply to cut off supply of the gas by disconnecting the supply.
The Noodles must be heated to ____ Degrees Celsius before cooling and cunsumption. :) Hope that helped. He heated the left over noodles for lunch.
They have be heated to liquid form first, and from that they must be heated more to be able to evaporate into the air and become a gas.
It must mean that are drinking to much alcoholic beverages,
1. Never heat alcohol directly on naked flame 2. you should take a beaker with boiled water in it and then place the alcohol with the test tube in it 3. you should wear goggles while heating alcohol. 4. never smell the alcohol directly after heating
The idiom "ears must be burning" is believed to originate from the superstition that if someone's ears are burning, it means someone is talking about them. This belief dates back to ancient Rome and Greece, where it was thought that the sensation of burning ears indicated that someone was gossiping about you.
Most municipalities allow paper to be burned in outdoor fire pits or designated burn areas with a proper permit. It is important to check local regulations and obtain any necessary permits before burning paper to ensure compliance with fire safety laws.
This depends on what fuel you are burning: it must contain (at least some) carbon
Posters are made from paper, and paper is made from trees. Those who work in lumber must use these materials to create the paper. The paper must be then shaped and cut to form a poster.
WHAT IS BALLOT PAPER ?
The products contain more energy than the reactants.