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Komok [63]
3 years ago
15

Which of the following is not a base? A: NH3 B. NaOH C. H3C6H5O7 D. KOH

Chemistry
2 answers:
olga2289 [7]3 years ago
7 0
I think that C is the answer.....
irina1246 [14]3 years ago
7 0

Answer: Option (C) is the correct answer.

Explanation:

A base is a substance or specie that contains a lone pair of electron or a hydroxyl group, that is, OH group.

For example, NH_{3}, NaOH, and KOH are all bases.

But H_{3}C_{6}H_{5}O_{7} is not a base because there is no lone pair of electron and no hydroxyl group.

Thus, we can conclude that out of the given options H_{3}C_{6}H_{5}O_{7} is not a base.

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What is the volume in liters of hydrogen gas that would be produced by the reaction of 40.0 g of Al with excess HCl at STP accor
DaniilM [7]

The volume in liters of Hydrogen gas = 49.28 L

<h3>Further explanation </h3>

The reaction equation is the chemical formula of reagents and product substances  

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products  

Reaction

2 Al (s) + 6 HCl (aq) → 2 AlCl₃ (aq) + 3 H₂ (g)

mol Al :

\tt mol=\dfrac{mass}{Ar}=\dfrac{40}{27}=1.481

mol  H₂ :

\tt \dfrac{3}{2}\times 1.481=2.2

At STP, 1 mol =22.4 L

so the volume of hydrogen :

\tt 2.2 \times 22.4=49.28~L

8 0
2 years ago
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What is a property of a solution with a high pH? Select all that apply. *
Lena [83]

Answer:

Bases (solutions with a high pH) feel slipper, have an -OH group, and are corrosive.

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2 years ago
3. Determine the uses of the following materials:
hichkok12 [17]

Answer:

D

Explanation:

D

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How many moles of nitrous oxide gas (N2O) is contained in 20.0 L balloon at a pressure of 1.09 atm and a temperature of 298K? Ro
prohojiy [21]

Answer:

There are 0,89 moles of nitrous oxide gas  in the balloon.

Explanation:

We apply the formula of the ideal gases, we clear n (number of moles); we use the ideal gas constant R = 0.082 l atm / K mol:

PV= nRT ---> n= PV/RT

n= 1,09 atm x 20,0 L /0.082 l atm / K mol x 298 K

<em>n= 0,89212637 mol</em>

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Answer:

B. Coal

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