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What else can I help you with?
Why is H used for hydrogen?
Probably because that's the first letter of the word.
How do you justify the position of hydrogen at the top of various group?
Hydrogen was placed in the first group because has a high tendency to loss an electron.
Why hydrogen gas is liquefied first than helium gas?
Hydrogen gas is liquefied first than helium gas because hydrogen has a higher critical temperature and pressure than helium. This means that hydrogen can be liquefied at higher temperatures and pressures compared to helium. Helium requires lower temperatures and pressures to be liquefied, making it more challenging to achieve compared to hydrogen.
When written in wet chalk first it is not visible but slowly it becomes visible why?
because you have to let it dry
Is the moon brighter than Venus?
When you see it up in the sky, yes! Venus is the second brightest object in the night sky. Our moon is first.
What star is 18000 times brighter than the sun?
first of all there is no star brighter then the sun and i can say that because ive been in space with my friends dad hes a astronaut we went because we had aproject on it so yh i know
What color do we see at birth?
They can see all the colours, but a bit brighter because it is their first time seeing these colours.
How many times brighter is a first magnitude star than a third magnitude?
2 magnitudes brighter means it's about 2.512 x 2.512 times brighter. So that's about 6.31 times brighter.
Why is H used for hydrogen?
Probably because that's the first letter of the word.
How do you justify the position of hydrogen at the top of various group?
Hydrogen was placed in the first group because has a high tendency to loss an electron.
Why hydrogen gas is liquefied first than helium gas?
Hydrogen gas is liquefied first than helium gas because hydrogen has a higher critical temperature and pressure than helium. This means that hydrogen can be liquefied at higher temperatures and pressures compared to helium. Helium requires lower temperatures and pressures to be liquefied, making it more challenging to achieve compared to hydrogen.
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.
What is a large cloud of dust and gas that becomes a star star?
That would be a nebula, which is an interstellar cloud of hydrogen gas, dust, and plasma. It is the first stage of a star's cycle.
Why does a fish market at first seem to have a strong odor that in time becomes less offensive?
it is because after that our body becomes used to it so we do not feel it offensive..
What gas was used to fill the first air ships?
Hydrogen was first used but was generally replaced with helium because of it's flammability.
When written in wet chalk first it is not visible but slowly it becomes visible why?
because you have to let it dry
What element was discovered first hydrogen or promethium?
Hydrogen was discovered first in 1766, while promethium was discovered much later in 1945.
