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Tresset [83]
3 years ago
14

1. Construct Explanations How does the time at which you see things

Chemistry
1 answer:
vodomira [7]3 years ago
4 0

Answer:

You see things happen much sooner than you hear them.  

Explanation:

Light travels about a million times as fast as sound.

When the ball hits the bat , it will take about a million times longer to hear the crack of the bat than to see it.

What you see is almost instantaneous.

There will be a delay until you hear the sound.

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Advanced flow measuring devices ? <br> I need info about this topic please
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Answer:

they are:-

venturi meter.

orfice plate.

Dall tube .

pitot tube.

Averaging pitot tube .

cone meter.

linear resis meter.

5 0
3 years ago
Yesterday we combined Hydrochloric Acid HCl with Sodium Hydroxide NaOH in a violent reaction that resulted in water H2O and comm
IceJOKER [234]
Reaction:
<span>HCl + NaOH ---> NaCl + H2O

</span><span>1 mole of HCl = 36,5 g
</span><span>1 mole of NaOH = 40g

</span><span>so, according to the reaction:
</span><span>1 mol HCl = 1 mol NaOH
</span>so, we need > 36,5 g HCl (<u>hydrochloric acid</u><span>)
</span><u>
answer: 36,5 g HCl (hydrochloric acid)
</u><span> ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
</span><span>next question.
</span><span>
1 mole of NaCl = 58,5 g
</span><span>1 mole of H2O = 18g
</span>
so, according to the reaction:
1 mole of HCl (36,5 g) <span>----------------- - 1 mole of NaCl (58,5 g)
</span><span>(the same for NaOH)
i
</span>1 mole of HCl<span> (36,5 g) ------------------ 1 mole of H2O (18 g)
</span>(the same for NaOH)

<span>so, this reaction is stechiometric
</span><u>
answer: 58,5 g NaCl i 18g H2O</u>
7 0
4 years ago
Read 2 more answers
Compare and contrast chemical change and physical change
ki77a [65]
Well physical would be if you have Clay and you molded into a new shape or if you put butter on your toes and it melts or water evaporating from the surface of the ocean chemical changes would be milk going sour jewellery tarnishing which means turning into a different color or rust bread putting it in the oven and turning it into toes or rust forming on the nail that is left outside
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4 years ago
Earths mantle is made of a dense thick material that allows movement of crystal plates. Crust plate movement occurs because the
nasty-shy [4]

Answer:

Convection cells

7 0
2 years ago
Are fossils likely to form in areas that experience a lot of erosion on daily basis?
frosja888 [35]
No, There are not likely to form in areas that experience a lot of erosion on a daily basis.
6 0
3 years ago
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