What’s a physical change in the movie theader

1 answer:

6 0

A physical change that may happen in a movie theater is:

You accidentally step on a piece of popcorn.

That piece of popcorn is still made up of the same things but LOOKS different. Therefore, the piece of popcorn went through a physical change.

I hope this helps!

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If you use one more of N2 how many moles of NH3 could be produced?

mote1985 [20]

Hey there!

2 moles will be produced.

In N₂ there are 2 nitrogen atoms. In NH₃ there is 1 nitrogen atom.

So, there will be twice as many moles produced because there will be twice as many molecules.

Hope this helps!

8 0

4 years ago

Which of the following is true about homogeous mixtures

sergey [27]

Was there supposed to be a picture?

4 0

3 years ago

The solution to be tested in this experiment must be buffered to ph of 10. If the ph were considerably higher, such as 12, how w

Serhud [2]

For a solution to be tested in this experiment and must be buffered to pH of 10, the [OH-] change will be, The hydroxide concentration would be higher and the formation of insoluble hydroxide salts with Mg^2 and Ca^2 would cause the determined concentration of water hardness to be too low.

<h3>What would be the [OH-] change?</h3>

Generally, the equation for the Total hardness is mathematically given as

$T=\frac{A*D*1000}{B}$

Where

$D=\frac{molarity}{0.01}$

D=0.02/0.01=2

Therefore

$T=\frac{A*D*1000}{B}\\\\T=\frac{20.4*2*1000}{25}$

T=1632ppm

in conclusion, The hydroxide concentration would be higher .