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marusya05 [52]
3 years ago
8

A pure gold bar is made up of only particles. A.nickelB.copper C.godD.gold​

Chemistry
1 answer:
Minchanka [31]3 years ago
4 0

Answer: gold

Explanation:

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Which product of prime polynomials is equivalent to 36x3 – 15x2 – 6x?
monitta
The product of prime polynomials is equivalent to 36x3 – 15x2 – 6x is letter B which is 3x(3x – 2)(4x 1). Below is the solution. 

3x(3x - 2) (4x + 1)
= 9x2 - 6x (4x + 1)
= 36x3 + 9x2 + -  24x2 - 6x
= 36x3 - 15x2 - 6x
       
3 0
3 years ago
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What is the mass of a sample of water that takes 2000 kJ of energy to boil into steam at 373 K. The latent heat of vaporization
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Answer:

0.89kg

Explanation:

Q=mL L=specific latent heat

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Fusion and fission reactions are both nuclear reactions that can be used to produce energy. However, while fission reactions are
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3 years ago
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

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m = 3000 e^{-0.0231*60} = 750 \, g

Answer: 750 g

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3 years ago
Which of the following best describes a Lewis base?
PolarNik [594]
Not 100% sure but I believe it is C.
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3 years ago
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