Answer:
1
Explanation:
fluorine's atomic number is 9
electronic configuration: 2,7
so it needs 1 electron to stabilise
that's why 1 covalent bond
hope it helps!!
Answer:
Explanation:
The Ideal Gas Law states that PV=nRT.
Rearrange that into P/n=RT/V.
In this case, the cylinder is rigid so the volume, V, does not change.
Temperature does not change either.
Out of 450 grams of gas, 150 grams leak out. So only 450-150 = 300 grams is left.
n is number of moles which is dependent on mass:
n1/n2 = 450/300 = 3/2
P1/n1 = RT/V = P2/n2
P2 = P1/n1*n2
= 7.2/3*2
= 4.8 atmosphere
<span>One degree Celsius indicates the same temperature change as one </span>
Hey there
_____________
The correct answer is:
Water, carbon, and nitrogen move through living and nonliving things on Earth through processes known as C. cycles .
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Hope this helps you
Answer:
total worth of all the gold: $3.64 E15 USD
Explanation:
- density (δ) = mass/volume
∴ mass gold = 4.0 E-10 g
∴ volume = 3.6 mL = 3.6 E-3 L
⇒ δ = 4.0 E-10 g / 3.6 E-3 L
⇒ δ = 1.111 E-7 g/L
if volume = 1.5 E21 L:
⇒ mass gold = (δ)(v)
⇒ mass gold = (1.111 E-7 g/L)(1.5 E21 L)
⇒ mass gold = 1.666 E14 g
∴ price gold = $21.84 USD/g
for all the gold in the world's oceans:
⇒ price gold = (1.666 E14 g)($21.84 USD/g)
⇒ price gold = $3.64 E15 USD
