Answer:
nitrogen 78% oxygen 21% argon 0.9% carbon dioxide, nitrous oxide, methane, and ozone are trace gases that account for about a tenth of one percent of the atmosphere.
Explanation:
All except for absorption of heat
Answer:
chemical and physical changes
Explanation:
In a chemical change, the chemical and physical properties of the substance formed will be different from the original substance. Because chemical change involves a change in the chemical composition of matter, and a new substance is formed.
THINK OF GUMMY BEARS IN A TEST TUBE AND IN THAT TEST TUBE THEIRS A SUBSTANCE ACID IT EX PLODS LOOK IT UP ON YOU TUBE
Explanation:
We have,
The most probable speed of an oxygen molecule in the gas phase at room temperature is 450 m/s.
The formula of the most probable speed of a gas molecule is given by :
So,
The RMS speed of the gas molecule is given by :
Use equation (1) in above equation :
It is clear that the RMS speed of the gas molecule is greater than 450 m/s.