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3 years ago

This answer please :))

Chemistry

1 answer:

r-ruslan [8.4K]3 years ago

4 0

Answer: ya this one

Explanation: this is the one

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Please help me with this.

zlopas [31]

Answer A: Connect a wire coil to an ammeter. Move a bar magnet into and out of the wire coil as you observe the ammeter.

6 0

2 years ago

The reaction 2NO(g)+Cl2(g)→2NOCl(g) is carried out in a closed vessel. If the partial pressure of NO is decreasing at the rate o

Luba_88 [7]

Answer : The rate of change of the total pressure of the vessel is, 10.5 torr/min.

Explanation : Given,

$\frac{d[NO]}{dt}$ =21 torr/min

The balanced chemical reaction is,

$2NO(g)+Cl_2(g)\rightarrow 2NOCl(g)$

The rate of disappearance of $NO$ = $-\frac{1}{2}\frac{d[NO]}{dt}$

The rate of disappearance of $Cl_2$ = $-\frac{d[Cl_2]}{dt}$

The rate of formation of $NOCl$ = $\frac{1}{2}\frac{d[NOCl]}{dt}$

As we know that,

$\frac{d[NO]}{dt}$ =21 torr/min

So,

$-\frac{d[Cl_2]}{dt}=-\frac{1}{2}\frac{d[NO]}{dt}$

$\frac{d[Cl_2]}{dt}=\frac{1}{2}\times 21torr/min=10.5torr/min$

And,

$\frac{1}{2}\frac{d[NOCl]}{dt}=\frac{1}{2}\frac{d[NO]}$

$\frac{d[NOCl]}{dt}=\frac{d[NO]}=21torr/min$

Now we have to calculate the rate change.

Rate change = Reactant rate - Product rate

Rate change = (21 + 10.5) - 21 = 10.5 torr/min

Therefore, the rate of change of the total pressure of the vessel is, 10.5 torr/min.

8 0

3 years ago

Substance/Specific heat capacity

nikdorinn [45]

I believe it is aluminum

8 0

3 years ago

Read 2 more answers

Which term names the result of elements joining together? A. compounds B. ions C. protons D. atomic masses

Igoryamba

A.Compounds.
Hope this helps!

3 0

3 years ago

Read 2 more answers

Magnesium oxide is a binary ionic compound. From the formula MgO, how do you know that Mg is the metal?

hammer [34]

Answer:

See below.

Step-by-step explanation:

Method 1:

You know that oxygen is a non-metal.

If the compound is ionic, the oxygen must be combined with a metal.

The Mg must be a metal.

Method 2:

In the formulas of ionic compounds, the positive ion (usually a metal) is written first.

8 0

3 years ago