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2 years ago

Please help, I lost my previous tutor just when she was explaining the answer

Chemistry

1 answer:

TEA [102]2 years ago

5 0

Answer:

HCO₂/H₂O is not the acid-base conjugate pair.

Explanation:

Acid and conjugate base pairs differ by an H+ ion.

Neither HCO₂ nor H₂O has lost or gained protons.

The conjugate acid of H₂O is H₃O⁺

The conjugate base of HCO₃⁻ is CO₃²⁻

[A conjugate acid has one more H⁺ than its base]

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What is the relationship between a codon and an anticodon?

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They both share oxygen

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3 years ago

Aluminium containers are used to store and transport nitric acid(HNO3) but not NAOH why?

alex41 [277]

Answer:

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2 years ago

1.What zodiac sign is October 19,2006? A). Sagittarius B). Libra C). Leo D). Pisces

MrMuchimi

Answer:

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3 years ago

Read 2 more answers

Quiz. Formula Weight and % Composition

astraxan [27]

Answer:

#1- the percentage is 2.77%

#2 - 218.1336g

#3- 7.89%

#4- 63.8489g

#5- 136.1406g

#6- 340.3515g

#7- 2.387238

#8-

Explanation:

7 0

3 years ago

If 5.58 g of iron reacts with sulfur to produce 8.79 g of iron sulfide, what is the mass of reacting sulfur? A) 3215 B) 14:37 C)

gogolik [260]

Answer: A) 3.21 g

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side.

$Fe+S\rightarrow FeS$

We are given:

Mass of iron = 5.58 g

Mass of iron sulphide = 8.79 g

Mass of sulphur = x g

Total mass on reactant side = 5.58 + x

Total mass on product side = 8.79 g

Applying law of conservation of mass, we get:

$5.58+x=8.79\\\\x=3.21g$

Hence, the mass of reacting sulfur is 3.21 g.

7 0

3 years ago