Assume a beaker of pure water has been boiling for 30 minutes. what is in the bubbles in the boiling water? a) heat. b) air. c) oxygen gas and hydrogen gas. d) gaseous water.
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Ответ:
The bubbles in the boiling water is gaseous water.
Explanation:
The conversion of water into its vapors is a physical change.
Physical change is defined as the change in which, change in shape, size etc.. takes place. No new substance gets formed in these reactions.
For Example: Melting of ice
Vaporization is defined as the physical process in which liquid particles get converted to gaseous particles.
When water is boiling for 30 minutes, the water particles are getting converted to water vapors.
Hence, the bubbles in the boiling water is gaseous water.
Ответ:
KN= 15 units
NM= 20 units
Step-by-step explanation: