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3 years ago

8

Elements with low specific heat values have which characteristic?

1 answer:

Serhud [2]3 years ago

5 0

Elements with low specific heat values tends to absorb heat energy lesser which means it will heat up faster. Having low specific heat values means it can have rapid changes in temperature. Metals generally have a low specific heat capacity, that's why their temperature can change so quickly.

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Explain how its possible for a compound to have both iconic and covalent bonds.<br><br>Thanks!

Evgesh-ka [11]

The atoms which make up the ion are covalently bonded to one another. 19) It is possible for a compound to possess both ionic and covalent bonding. a. If one of the ions is polyatomic then there will be covalent bonding within it.

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3 years ago

Help with this voltage drop?<br> I'd also like to know how you did it.

grandymaker [24]

No one answeres physic questions, iveneeded help all morning

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3 years ago

A round pipe of varying diameter carries petroleum from a wellhead to a refinery. At the wellhead, the pipe's diameter is 50.9 c

seraphim [82]

Answer:

Flow rate 2.34 m3/s

Diameter 0.754 m

Explanation:

Assuming steady flow, the volume flow rate along the pipe will always be constant, and equals to the product of flow speed and cross-section area.

The area at the well head is

$A = \pi r_w^2 = \pi (0.509/2)^2 = 0.203 m^2$

So the volume flow rate along the pipe is

$\dot{V} = Av = 0.203 * 11.5 = 2.34 m^3/s$

We can use the similar logic to find the cross-section area at the refinery

$A_r = \dot{V}/v_r = 2.34 / 5.25 = 0.446 m^2$

The radius of the pipe at the refinery is:

$A_r = \pi r^2$

$r^2 =A_r/\pi = 0.446/\pi = 0.141$

$r = \sqrt{0.141} = 0.377m$

So the diameter is twice the radius = 0.38*2 = 0.754m

6 0

3 years ago

Is the following chemical equation balanced?<br><br> MgI2 + Br2 MgBr2 + I2 <br><br> yes<br><br> no

Brums [2.3K]

Yes

Explanation:

This chemical equation:

$Mg I_2 + Br_2 \rightarrow Mg Br_2 + I_2$

is balanced, because the number of atoms of each element is the same on the reactant side and on the product side. In fact:

- Mg: one atom on the left, one on the right

- I: 2 atoms on the left, and 2 on the right

- Br: 2 atoms on the left, and 2 on the right

So, the reaction is balanced.

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3 years ago

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hammer [34]

Answer : )b

Explanation:

bc i said its b sznankana

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3 years ago

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