Gas particles want to be as free as they can, occupying as much space as they can because they are independent and the greater the temperature the greater their speed, when the temperature is low so is their speed, so they can attach to solvent molecules. When the temperature rises the gas molecules become more agitated and the glue can no longer take them inside the solvent.
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Half life is 15 hours
so 30 hours would be 2 half lives
after 15 hours it would be at 50%
after 15 more hours it would be at 50% of 50%
so .5 x .5 = .25
it would be 25%
Correct answer is option D becauce C12 and C14 are isotopes.they have same atomic numbers but dif atomic masses.
Answer:
1)They breathe to air
2)They need nutrition to live
3)Their body is made up of cells
4)All living things respond to stimuli.
Explanation:
Hi! In many exam questions, they usually inform you on which number to use for the acceleration due to gravity. Its actual value is 9.80214 ms^(-2) however some exam questions ask you to use 9.8 or even 10...so I did both just for the extra help. Hope this helps!