Answer:
6.70 grams of krypton-81 was present when the ice first formed
Explanation:
Let use the below formula to find the amount of sample

where

here
t = 458,000 years
= 229,000
= \
n =
= 2.000
Now substituting the values




When an oxygen atom is attached to a carbon atom, the carbon atom becomes reduced.
Hello!
We have the following data:
f (radiation frequency) = 
v (speed of light) =
λ (wavelength) = ? (in m)
Let's find the wavelength, let's see:




I Hope this helps, greetings ... DexteR! =)
Answer:
while atoms form together, they percentage their outermost electrons to create more sustainable strength states. This sharing bonds the atoms into an ionic shape or a molecule
Explanation:
i hope this help a little