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viva [34]
3 years ago
7

Which of the following pairs of reactants is not correctly listed with its product solution? A. Weak base-strong acid reactants—

more acidic solutions B. Weak acid-strong base reactants— more basic solutions C. Strong base-strong acid reactants—neutral solutions D. Strong acid-strong base reactants—more acidic solutions
Chemistry
2 answers:
Luba_88 [7]3 years ago
6 0

Answer:

D. Strong acid-strong base reactants—more acidic solutions

Explanation:

A strong acid and strong base solution will neutralize each other. The solution has an equal number of proton (H⁺) and hydroxide ions (OH⁻).  

For example, HCl + NaOH → NaCl + H₂O  

NaCl is a neutral salt where are HCl and NaOH are strong acids and base respectively. NaCl solution has a pH close 7.0 making it neither acidic nor basic.  

igomit [66]3 years ago
4 0

D is incorrect for this.

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A solution has a pH of 11.8. What is the pOH?
amid [387]

Answer:

pOH is 2.2

Explanation:

The pH scale goes from 0 to 14. As such, the pH and the pOH add up to 14. Subtract your pH from 14 to get your answer.

14 - 11.8 = 2.2

5 0
3 years ago
When are zeros significant in a value ?
ASHA 777 [7]

Answer:

If the zero is between fwo nonzeros

Explanation:

5 0
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krok68 [10]
A and d is physical, b and c is chemical
4 0
3 years ago
Look up and compare the normal boiling points and normal melting points of H2O and H2S. Based on these physical properties, whic
NeTakaya

Explanation:

Both melting and boiling point of water are much higher that that of H2S.

The MP and BP of water are 0°C and 100°C respectively whereas the MP and BP of H2S are -82°C and -60°C respectively.

Clearly, the intermolecular forces in H2O are much stronger than in H2S because, H2O has hydrogen bonding in it, which is both inter and intra. Whereas H2S has only weak van der waal force between their molecules. This is why boiling and melting points of H2O is more than that of H2S.

Hydrogen bonding is a particular type of dipole-dipole association which occurs between atoms of hydrogen bound to strongly electronegative atoms that are either fluorine, oxygen or nitrogen.

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7 0
2 years ago
A solution is made by dissolving 42.3g of potassium hydroxide in 329g of water what is the molality of the solution?
xxMikexx [17]

Answer:

2.34 molality

Explanation:

Mole weight of KOH ( using periodic table ...rounded to 3 s.f.) =

              56.1 gm/mole

Number of moles in 43.2 g

  43.2 g  /  56.1 gm / mole =.770 mole

molality = .770 mole / .329 kg = 2.34 m

7 0
1 year ago
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