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Does fire need air or oxygen?
The fire is fueled by oxygen in the air. There is no significant amount of hydrogen gas found in the atmosphere.Does the question relate to a laboratory experiment involving hydrogen gas? Or is the question a general one? Oxygen is not a fuel, but it is required to support combustion, or rapid oxidation. Hydrogen is combustible and can be used as fuel. If you burn hydrogen, the fire is being fueled by the hydrogen, not the oxygen, but without O2, the hydrogen would not burn.
Are oxygen and carbon dioxide water molecules?
No. Oxygen and carbon dioxide are not the molecules that make up the element water. The name for water on the periodic table of elements is H2O.(the 2 is slightly lower in the real abbreviation.) H2O stands for 1 oxygen molecule with 2 smaller hydrogen molecules attached to it. It looks similar to the shape of Mickey Mouse's head with his two ears at the top.
What are the scientific symbols for water?
H2O (where the 2 is subscript). This represents 2 hydrogen atoms bonded covalently to one oxygen molecule. The molecule itself looks a little like Mickey Mouse's head.
How CO2 and CO is toxic?
CO2 (carbon dioxide) can probably choke you if you breathe it in, that's why you SHOULD NEVER ever put a bag around your head, you will only have a few breathes of oxygen, then you start to breathe in carbon dioxide. CO is very very dangerous. If you keep breathing it in, it can kill you. DO NOT run a generator, car, barbeque inside of your house, those can cause CO poisoning. With CO (carbon monoxide) breathing it in can poison your blood, heart, and stop the brain from functioning properly. You breathe in oxygen so you can give oxygen poor blood, oxygen, so it can turn into oxygen rich blood. If there is wrong information in here, you are welcome to correct it. I hope i answered your question :)
Which end is positively charged on a water molecule?
First there are three sides of a molecule there are 2 hydrogen sides and 1 oxygen side. The oxygen end has a slight negative charge, and the hydrogen end has positive charge. A molecule that has electrically charged areas is a polar molecule. Because water consists of polar water molecules, it is called a polar substance.
How do head lice breathe?
they absorb oxygen directly from the air without lungs.
Can a person live without a head?
No, it is impossible for a human to live without a brain.
What does a chicken without a head mean?
a person who doese not have direction
What are two functions of machines?
one your head :p
Are patients transported to the operating room head or feet first?
the person transferring the patient can monitor the patients respiration and can easily administer oxygen in case of any emergencies.
Where can I go online to find inexpensive tennis ball machines?
Head to SportsTutor.com. They have one of the best tennis ball machines you can buy. You can just head to good old Amazon.com, they have plenty of tennis ball machines for you to choose from. where can I find a used tennis ball machine with battery and A/C?
What is the advantage of having the nostrils at the top of the head?
It is easier to get oxygen from the surroundings.Keyword:Top of the head
Can you sew your head back on after its cut off?
No. As soon as the head starts to lose oxygen, the brain starts to die. Not to mention, you cannot control your body without having nerve passages, which are not wireless, so as soon as you head falls off your body will go limp.
Can human cells live from birth to death of an old person?
only for a little while,like a head without a body
What is an Airhead?
An airhead is a silly, unintelligent, or foolish person.
How do you kiss without your noses chrusing?
To kiss without crushing noses, tilt your head slightly. People usually seem to tilt to the right. If both people tilt in the same direction, your noses will bump.
Why do we have a person sit with head between knees when assisting them for fainting or shock if we can't lay them down?
Tha main cause of fainting is that, there is shortage of oxygen supply to the brain. The blood is the one who carries oxygen and distribute to the different parts of the body.Because of gravity,the head of a person,during fainting, should be placed between the knees or below the heart.In this case, pumping of blood from the heart to the brain will be easy.
