Answer:
B
Explanation:
the fluorine has an high tendency to gain electrons from other elements with lower electronegativities
I think it's Almond Soy Milk because they're recommending your body's pH to be at 7.5 and the Almond Soy Milk is the answer with the closest pH to 7.5
Half life means is the amount of time only half the uranium is left. So after 68.9 years only 150/2 = 75 g is left. Another 68.9 years go by and then 75/2 = 37.5 g remains. See the pattern here?
then you can divide 250 by 68.9 to see how many times it's halved or just write the equation:
A = 150(0.5)^(t/68.9)
t is 250 years, A is amount left
A = 150(0.5)^(3.63)
A = 12.13 g
<u>Answer:</u> The edge length of the unit cell is 0.461 nm
<u>Explanation:</u>
We are given:
Atomic radius of iridium = 0.163 nm
To calculate the edge length, we use the relation between the radius and edge length for FCC lattice:
![a=2\sqrt{2}R](https://tex.z-dn.net/?f=a%3D2%5Csqrt%7B2%7DR)
Putting values in above equation, we get:
![a=2\sqrt{2}\times 0.163=0.461nm](https://tex.z-dn.net/?f=a%3D2%5Csqrt%7B2%7D%5Ctimes%200.163%3D0.461nm)
Hence, the edge length of the unit cell is 0.461 nm
When molecular hydrogen<span> </span><span>and </span>oxygen<span> </span><span>are combined and allowed to react together, energy is released and the molecules of </span>hydrogen and oxygen<span>can combine to </span>form<span> either </span>water<span> or </span>hydrogen<span>peroxide.</span>