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gulaghasi [49]
2 years ago
8

The elements Beryllium (Be), Magnesium (Mg), Calcium (Ca) and Strontium (Sr) are all what?

Chemistry
1 answer:
AVprozaik [17]2 years ago
4 0

answer : alkaline earth metals ..

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Calculate the number of moles in 8 g of water.
polet [3.4K]

Answer:

refer the above attachment

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In some areas of the Earth, the crust is squeezed and pushed upward. This is a _______ process in that it directly forms _______
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So..... I believe this is a Convergent boundary and mountains..
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An electrolytic cell is set up to plate Zr(s) from a solution containing Zr4 (aq). A current of 7.92 amps is run through this so
iren [92.7K]

The mass of Zr deposited in the process is 41.4 g.

<h3>What is electrolytic cell?</h3>

An electrolytic cell is a chemical cell which produces electrical energy by non-spontaneous chemical processes.

From the question;

Zr^4+(aq) + 4e ------> Zr(s)

We know that;

91 g of Zr is deposited by 4(96500) C

xg of Zr is deposited by (7.92 × 6.16 × 60 × 60) C

xg = 91 g ×  (7.92 × 6.16 × 60 × 60) C/4(96500) C

x g = 41.4 g

Learn more about electrolysis: brainly.com/question/12054569

8 0
1 year ago
An obese man was discovered in his air-conditioned hotel room sitting in a chair in front of the television. The air conditioner
Leno4ka [110]

Answer:

It has been approximately 6 hours after death.

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This is because between 2-6 hours after death, the body starts becoming stiff from top to bottom, then spreading to the limbs. Since there is only rigor in his upper body, that would mean that with normal temperature and body conditions, it would be 4 or 5 hours after death. But since he is obese and in cold temperature, there is slower progression of rigor, leading to the maximum time in the first rigor mortis phase, 6 hours.

8 0
3 years ago
The head loss in a turbulent flow in a pipe varies Approximant as square of velocity • Direct as the velocity • Invers as square
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Answer:

Head loss in turbulent flow is varying as square of velocity.

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As we know that head loss in turbulent flow given as

h_F=\dfrac{FLV^2}{2gD}

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V is the flow velocity

D is the diameter of pipe.

So from above equation we can say that

h_F\alpha V^2

It means that head loss in turbulent flow is varying as square of velocity.

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1.Major loss :Due to surface property of pipe

2.Minor loss :Due to change in momentum of fluid.

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3 years ago
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