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John Dalton in 1803.
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Which gas forms the liquid first when the air is cooled?
oxygen and then hydrogen
How many bonds between the oxygen and hydrogen in a hydroxide atom?
First, it is the hydroxide ion, not hydroxide atom. In this ion there is only a single bond between the hydrogen and oxygen.
What is the first element for NaOH?
Na=Sodium. O=Oxygen. H=hydrogen.
Why does hydrogen pop louder when lit if it is first mixed with air?
The pop you hears is a result of the hydrogen reaction with oxygen. When it is mixed with air, all of the hydrogen is readily in contact with oxygen, and the reaction can proceed much more rapidly.
Earths first atmosphere contained little to no?
Oxygen. Earth's early(first) atmosphere is believed to contain hydrogen cyanide, carbon dioxide, carbon monoxide, nitrogen, hydrogen sulfide, and water. but still it only had little to no oxygen.
What happens to atoms of hydrogen and oxygen when your body first uses food?
They make molecules of water
What is the man recognized Oxygen and hydrogen?
Joseph Priestley was the man who first discovered oxygen, or as he called it "dephlogisticated air", back in the 18th Century
What was the first element used by humans?
Oxygen was the first element used by humans the most prominent elements in the body are hydrogen OXYGEN nitrogen and carbon. You have probably heard that you body is made up of 65 percent water well you are also made up of 65 percent oxygen. I know that does not equal 100 percent but water is H2O which is hydrogen squared and Oxygen. Oxygen is in water. We need oxygen to live.
Can we produce water from reacting hydrogen with oxygen?
We could. We usually don't, because most hydrogen is produced by electrolysis from water in the first place. But we could if we found ourselves with an excess of hydrogen and a deficit of water for some reason.
Which were the first gases formed?
helium,ozone,hydrogen,oxygen,nitrogen,carbon-di-oxide,argon,
What is the element h2o?
H2O means that there are 2 Hydrogen molecules bonded to 1 Oxygen molecule. I might add that H2O is the chemical symbol for water. Answer I would like to add that technically H2O Is a compound and not an element.
What compound does water contain?
First, you need to know the meaning of compound. It is a pure substance composed of two or more elements that are chemically combined. Table salt - sodium and chlorine Water - hydrogen and oxygen Sugar - carbon, hydrogen and oxygen Carbon dioxide - Carbon and oxygen Baking soda - Sodium, hydrogen, carbon and oxygen
