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1. Negative view: Burn a candle in a closed jar and it extinguishes.
2. Positive view: Blow gently on a fire and see it flare up.
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∙ 9y ago
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How does oxygen supports burning?
Oxygen is an oxidizing element, in that it accepts electrons. Oxidizing elements are essential in combustion reactions as reactants. Once the amount of oxygen runs out, the reaction stops, therefore it supports burning by allowing the reaction to carry forward.
What is the name of a substance formed by burning hydrogen and ethanol in air?
what is the substance formad when burning both hydrogen and ethanol in the air
Why is oxygen used for burning of fire?
So the fire has air so it can keep burning
What is formed when burning hydrogen in air?
water
Which gas is produced by burning fuel with no air?
Oxygen
Why the burning level of a substance increases when air blows?
When air blows, it provides a continuous supply of oxygen to the burning substance. Oxygen is necessary for combustion to occur, as it supports the chemical reactions that release heat and light. The increased airflow can enhance the combustion process, allowing the substance to burn more efficiently and at a higher intensity.
Why is there a greater risk of explosion with dust in the air than with dust on the ground?
Cause dust can combust real fast and air supports burning the ground doesn't
Why Nitrogen can reduce the burning?
cos it does not burn itself nor supports burning
What gas plays an important role in the process of burning?
Oxygen supports burning
How will you show that air is essential for burning fuel?
You may put some burning fuel (as a piece of coal or some gasoline, etc..) under an airtight pot connected to vacuum system to suck air. You notice on sucking the air the diminishing of the burning until got completely off. Even if you don't such the air, the burning will get less and less due to the consumption of the limited Oxygen inside the pot.
What is an air cushion?
An air cushion is a layer of trapped air which supports a hovercraft.
What scientific evidence supports the burning of magnesium?
Strange question. either you have lit some magnesium (in which case you have observed it burn) or not. The evidence is in the burning.
Does combustion require oxygen?
yes this is because it is the only gas that supports burning. yes
How does oxygen supports burning?
Oxygen is an oxidizing element, in that it accepts electrons. Oxidizing elements are essential in combustion reactions as reactants. Once the amount of oxygen runs out, the reaction stops, therefore it supports burning by allowing the reaction to carry forward.
Why does the sky not fall down?
The sky is made of air and the air supports the air above it.
Which gas in air supports combustion?
Oxygen.
How air supports life?
All living beings need air to survive.
