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3 years ago

A solution containing HCI would likely have

Chemistry

2 answers:

KatRina [158]3 years ago

7 0

Answer: It’s B, a low PH and a high POH.

Hope this helps

Eva8 [605]3 years ago

4 0

Answer:

Explanation:

On Edge 2020

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Caffeine (C8H10N4O2) is a stimulant found in coffees and teas. When dissolved in water, it can accept a proton from a water mole

Olenka [21]

Answer:

See figure 1

Explanation:

If we want to find the acid and the Brønsted-Lowry base, we must remember the definition for each of these molecules:

-) Acid: hydrogen donor

-) Base: hydrogen acceptor

In the caffeine structure, we have several atoms of nitrogen. These nitrogen atoms have the ability to accept hydronium ions ( $H^+$ ). Therefore the caffeine molecule will be the base since it can accept

If caffeine is the base, the water must be the acid. So, the water in this reaction donated a hydronium ion.

Thus, caffeine is the base and water the acid. (See figure 1)

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3 years ago

Which of the following statements about the sun's features are true?

Aleonysh [2.5K]

Solar flares form when prominences connect I think

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3 years ago

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Plz help me... my ppr is gonig on......

anyanavicka [17]

Answer:

geruow0irghvn3p0unhie0ghik

Explanation:

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3 years ago

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g Ammonium nitrate was the oxidizing agent used that damaged the New York World Trade Center in 1993 and the Federal Building in

Cloud [144]

Answer: $51.3\times 10^3$ kJ

Explanation:

The thermochemical equation for decomposition of ammonium nitrate is:

$NH_4NO_3(s)\rightarrow N_2O(g)+2H_2O(g)$ $\Delta H=-82.1kJ$

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Given mass= 50.0 kg = $50.0\times 10^3g$ (1kg=1000g)

$\text{Number of moles of ammonium nitrate}=\frac{50.0\times 10^3g}{80g/mol}=0.625\times 10^3moles$

According to stoichiometry:

1 mole of $NH_4NO_3$ gives = 82.1 kJ of heat

Thus $0.625\times 10^3moles$ of $NH_4NO_3$ give = $\frac{82.1}{1}\times 0.625\times 10^3=51.3\times 10^3$ kJ of heat

Thus $51.3\times 10^3$ kJ of heat is evolved from the decomposition of 50.0 kg of ammonium nitrate.

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3 years ago

Which of the following demonstrates a double-replacement reaction?

Volgvan

A: Na3PO4 + MnCl2 > Mn3(PO4)2 + NaCl

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3 years ago

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