Answer:
The half-life of Material 1 and Material 2 are equal.
step by step explanation;
Material 1 disintegrates to half its mass three times in 21.6 s, to go from 100g
to 12.5g. That is,
100g - 50g - 25g - 12.5g
Material 2 disintegrates to half its mass three times in 21.6 s, to go from 200g to 25g. That is,
200g - 50g - 25g - 12.5g.
This means that regardless of their initial masses involved, material 1 and material 2 have equal half-life.
Their half-life is 21.6 ÷ 3 = 7.2 sec
Answer:
There are three isotopes of silicons. They have masses numbers of 28, 29 and 30. The average amount of silicons is 28.086alum
Explanation:
I learned this in class three days ago so I hope this is helpful i'm in high school ask me for help when ever you want Iĺl help you
Explanation:
is b or c but i think asnwer is b
Answer:
Only species Y is anaerobic.
Explanation:
- Cellular respiration refers to the process in which food substances such as glucose are broken down to yield energy in the form of ATP, water and carbon dioxide as by-products.
- Respiration may be either anaerobic or aerobic respiration.
- Aerobic respiration is a type of respiration that takes place in the presence of oxygen. Nutrients are broken down to yield energy, water, and carbon dioxide.
- Anaerobic respiration occurs in the absence of oxygen to yield few molecules of ATP, alcohol and carbon dioxide.
- Therefore; species X carries out aerobic respiration while species Y carries out anaerobic respiration.
Answer:
<em> three stereoisomers
</em>
<em>Hence there are only three stereoisomers of 1,2-dichlorocyclopentane.</em>
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Explanation:
