3 years ago

Which of the following changes gives no evidence that a chemical reaction has taken place?

Mathematics

1 answer:

grigory [225]3 years ago

5 0

I think the correct answer for this is
a cube of solid forms a puddle of liquid
but i am no sure it's correct or no

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attached below

Step-by-step explanation:

Attached below is a detailed solution to your problem above

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attached below is the detailed solution

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Nesterboy [21]

Check the picture below.

so is really just a cylinder with a cone on the side, notice, since the diameter of the base is 4, the radius is half that then.

so we just simply get the volume of the cylinder, and the cone, and sum them up

$\bf \textit{volume of a cylinder}\\\\
V=\pi r^2 h\quad 
\begin{cases}
r=radius\\
h=height\\
-----\\
r=2\\
h=6
\end{cases}\implies V=\pi \cdot 2^2\cdot 6\\\\
-------------------------------\\\\
\textit{volume of a cone}\\\\
V=\cfrac{\pi r^2 h}{3}\quad 
\begin{cases}
r=radius\\
h=height\\
-----\\
r=2\\
h=2
\end{cases}\implies V=\cfrac{\pi \cdot 2^2\cdot 2}{3}\\\\
-------------------------------\\\\
\stackrel{cylinder's~volume}{24\pi }~~+~~\stackrel{cone's~volume}{\cfrac{8\pi }{3}}$

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3 years ago

Read 2 more answers