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den301095 [7]
3 years ago
14

Which solution has the lowest pH? A. 1.0 M HNO2 B. 1.0 M CH3COOH C. 1.0 M HCOOH D. 1.0 M HNO3 E. 1.0 M HPO4–

Chemistry
2 answers:
Svetlanka [38]3 years ago
8 0
The stronger the acid the lower the pH, because pH = log { 1 / [H+]}. You can discard easily the options B and C because they are organic acid which are relatively weak. To compare properly the inorganic acids you should use a Ka or pKa table. You can predict that HPO4 (2-) is less strong because the third dissociation is weaker the first. So, you should only need to search for the Ka or pKa of HNO2 and HNO3. Every one who is familiar with the stronger acids knows that HNO3 is one of the strongest acid, stronger indeed than HNO2. So, the strongest acid of the list is HNO3 and it has the lowest pH. <span>Answer: option D. 1.0 M HNO3.</span>
lianna [129]3 years ago
7 0

Answer:

Answer: option D. 1.0 M HNO3.

Explanation:

#platolivesmatter

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Several properties of water are shown. Classify each property as a physical property or a chemical property.
max2010maxim [7]

can be split into hydrogen and oxygen             chemical property

is liquid at room temperature                              physical property

has a density of 1.0 g/cm³                                    physical property

reacts with certain metals                                  chemical property

Explanation:

The physical properties of matter are the properties that occur when no change is occurring to a matter. They are usually observed with our senses or some simple laboratory experiments.

Some of the physical properties are boiling point, density, state of matter, e.t.c

The chemical properties are the properties that occurs when a matter undergoes some chemical changes.

For example rusting, decomposition, reactivity e.t.c

Learn more:

Chemical properties brainly.com/question/2376134

#learnwithBrainly

8 0
3 years ago
Plz help me woth these 2 questions they r killing me!!!!!
Bogdan [553]
If you leave the plant in the closet it will die due to the lack of sunlight and water it needs.

Yes, you could begin to swear because you are used to hearing those words so in your mind it will get implanted and it will be just a natural response.

Happy studying ^_^
3 0
3 years ago
What is the name of this molecule?
Sunny_sXe [5.5K]

Answer:

D. cis-2-pentene (looks like a frying pan)

Explanation:

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8 0
3 years ago
for a neutralization reaction, would you expect the magnitude of q to increase, decrease, or stay the same if the concentration
ikadub [295]

For a neutralization reaction, the value of q(heat of neutralization) is doubled when the concentration of only the acid is doubled.

A neutralization reaction is a reaction in which an acid reacts with a base to yield salt and water. Ionically, a neutralization reaction goes as follows; H^+(aq) + OH^-(aq) ------> H20(l).

The heat of neutralization (Q) of the system depends on the concentration of the solutions. Since Q is dependent on concentration, if the concentration of any of the reactants is doubled, more heat is evolved hence Q is doubled.

Learn more: brainly.com/question/10323185

4 0
3 years ago
which objects would have a greater gravitational force between them, Objects A and B, or Objects B and C? HELPPP
Finger [1]
Dude what are the objects!
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