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MrRa [10]
3 years ago
12

Why California and Nevada have so many faults?

Chemistry
1 answer:
gtnhenbr [62]3 years ago
6 0

Answer:

They are due to past earthquakes

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A nuclear waste site. cesium-137 is a particularly dangerous by-product of nuclear reactors. it has a half-life of 30 years. it
hram777 [196]
The mass decay rate is of the form
m(t) = m_{0} e^{-kt}
where
m₀ = 3000 g,the initial mass
k = the decay constant
t = time, years.

Because the half-life is 30 years, therefore
e^{-30k} =  \frac{1}{2} \\\ -30k = ln(0.5) \\ k =  \frac{ln(0.5)}{-30} =0.0231

After 60 years, the mass remaining is
m = 3000 e^{-0.0231*60} = 750 \, g

Answer: 750 g

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3 years ago
Please help I need to correct I don't understand it
victus00 [196]
Answer is d. in hetrogeneous you can separate things from each other
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3 years ago
What is the pOH of<br> a<br> 2.6 x 10-6 M H+ solution?
scZoUnD [109]

Answer:

pH = -log 2.6 x 10-6 M

pH = 5.585

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8.4 as 2 sig figs

8 0
3 years ago
Most of the minerals in the Earth’s crust are a type of what mineral? A. mica B. gem C. metal D. silicate
tigry1 [53]
It would be D. silicate
3 0
3 years ago
which of these solutions has the lowest freezing point? 0.25 m nacl 0.5 m nacl 1.0 m nacl 1.5 m nacl 2.0 m nacl
Alinara [238K]
The more particles (ions or molecules) that you can put into solution, the lower the freezing point. 

the answer is E. 2.0 M nacl
4 0
3 years ago
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