Answer:
The correct answer is : 
Explanation:
According to the Bronsted Lowry conjugate acid-base theory, an acid is defined as a substance which donates protons and a base is defined as a substance which accepts protons.
Acid after donating protons changes into conjugate base and base after accepting protons changes into conjugate acid.
So, when HF in water reacts, it form fluoride ions and hydronium ions. The recation is given as:
Here, HF is acting as a Bronsted Lowry acid by donating proton and forms it conjugate base , Where as water is acting as a Bronsted Lowry base by accepting a proton and forms its conjugate acid 
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Answer:
Any situation that has a path that stops at the same position that it started from has a displacement of zero.
Explanation:
This item can be answered by using the concept of material balance. The amount of substance used for the reaction should be the same before and after the reaction occurred.
Amount of reactants = 3.55 grams + 4.60 grams = 8.15 grams
We are also given that the amount of product accounted for is only 6.25 grams, this entails that not all copper was reacted. Subtracting this value from 8.15 g will give us an answer of 1.9 grams.
Answer: 1.9 g of copper
Answer:
d.) 1.0 M HNO2, 1.0 M NaNO2
Explanation:
A buffer is a mixture that is capable of tolerating addition of a strong acid or base without altering the pH substantially.
A buffer is the mixture of a <em>WEAK ACID AND ITS CONJUGATE BASE </em>or a <em>WEAK BASE AND ITS CONJUGATE ACID</em>
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In the problems:
a) HCl is a strong acid and NaCl a salt. NO buffer
b) NH3 is a weak base and NaCL a salt. NO buffer
c) HF is a weak acid and NaCl a salt. NO buffer.
<h3>d) HNO2 is a weak acid and NaNO2 its conjugate base. A BUFFER</h3>
Answer:
Glucose also called(Energy)
