3 years ago

How are chemical bonds important in metabolism?

1 answer:

8 0

Chemical bonds are broken to supply us with energy. Without bonds, and our ability to break them, the food we eat would not supply us with energy.

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Identify the type of igneous rock that is formed when magma cools above Earth's surface?

mylen [45]

Answer: cools down and keeps going

Explanation:

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3 years ago

Which elements are magnetic in the periodic table?

rosijanka [135]

METALS ARE MAGNETIC(and maybe metalloids)

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3 years ago

How much faster does ethane (C2H6) gas travel compared to chlorine gas?

zimovet [89]

Answer:

$\large \boxed{\text{54 $\, \%$ faster }}$

Explanation:

$v_{\text{rms}} \propto \sqrt{\dfrac{3RT}{M}$

if temperature is constant.

$v_{\text{rms}} \propto \sqrt{\dfrac{1}{M}$

if we are comparing two gases,

$\dfrac{v_{2}}{v_{1}} = \sqrt{\dfrac{M_{1}}{M_{2}}}$

Let chlorine be Gas 1 and ethane be Gas 2

Data:

M₁ = 70.91 g/mol

M₂ = 30.07 g/mol

Calculation

$\begin{array}{rcl}\dfrac{v_{2}}{v_{1}} & = & \sqrt{\dfrac{M_{1}}{M_{2}}}\\\\& = & \sqrt{\dfrac{70.91}{30.07}}\\\\& = & \sqrt{2.358}\\\\& = & \mathbf{1.54}\\\end{array}\\\text{Ethane molecules travel at 1.54 times the speed of chlorine molecules}\\\text{or $\large \boxed{\textbf{54 $\%$ faster }}$ than chlorine molecules}$

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3 years ago

What do you make when you dissolve sugar in water?

Rasek [7]

Answer:

Answer is c.

Explanation:

when you mix sugar with water,the sugar dissolves to make a transparent solution.

I hope it's helpful!

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Answer:

20 i guess

Explanation:

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3 years ago