Can u please help me with these 2 answers!
1 answer:
5 is 2 I’m not sure about 4 though....
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Answer :
The Noble gasses are Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), Radon (Rn). When air is cold, Oxygen liquefies first at Argon, Ar. One noble gas was discovered on the sun. It’s spectrum was identify first. This is Helium, He. One of noble gas is radioactive and seeps up your basement floors and walls. It is Radon, Rn. This noble gas is used in electronic flashes and other bright lights. It is Xenon, Xe. This noble gas is best known for its orange color in gas discharge tubes. It is used for signs that bear its name. It is Neon, Ne.
Assuming its at r. t.p and pressure
Answer:
b.
Explanation:
hope that helped you
False. A mixture represents elements or molecules which are not chemically combined.
Black coffee since it is a darker colour and has a heavier taste
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liquefies at
. About 1% of the air is still gas composed of the noble gas Argon, Ar.