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Shkiper50 [21]
3 years ago
12

Which of the following lists describes characteristics of an acid? Bitter taste, high pH, and caustic Sour taste, low pH, and di

ssolves metals Sour taste, high pH, and dissolves metals Slippery, low pH, and caustic
Chemistry
1 answer:
Genrish500 [490]3 years ago
3 0

Answer:

Sour taste, low pH, and dissolves metals

Explanation:

Acids have a pH below 7.0. Acids turn litmus paper red as they have pH below 7.0. Bases on the other hand have pH above 7.0. Water has a neutral pH of 7.0.  

Acids have a sour taste. For example citric acids found in lemons make it sour. Vinegar has acetic acid which makes it sour.  

Acids dissolve metals to form salts and hydrogen gas

2HCl + Zn → ZnCl₂ + H₂

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Substituents on an aromatic ring can have several effects on electrophilic aromatic substitution reactions. Substituents can act
Leya [2.2K]

Answer:

Option A=> -NHCOCH3 and option C = -CH3.

Explanation:

The option A that is -NHCOCH3 is CORRECT because it possesses lone pair of electron with the exception of group 7A elements. It is this lone pair that is used in the Activation of the ring towards substitution. Other groups that falls into this group are; OCH3, alkyls and many others.

Option B that is -COOH is good group for withdrawal of electron through Resonance. Other examples are NO2, -CN and SO3H.

Option C falls to the same category as option A above that is Activation of the ring towards substitution.

Option D falls to the same category as option B above that is group for withdrawal of electron through Resonance.

7 0
3 years ago
Mike, Jackie, Jeremy, and Niki were widely known to the be the fastest fifth graders at Robinson Elementary School. They wanted
riadik2000 [5.3K]

Jackie is the fastest student. (Option A)

Explanation:

  • From the table it was understood that their speeds are given in meter per second, that is how many meters they run in one second. It was again shown that Jackie's race speed is 5.3 meter per second and all the other three namely Jeremy's speed is 3.9 meter per second, Mike's speed is 4.1 meter per second and finally Niki's speed is 3.8 meter per second.
  • So, by comparing with others Jackie is the fastest runner in that race.
8 0
3 years ago
How many molecules are there in 24 grams of Fe? <br><br> (Please explain how you got the answer)
Nataly [62]
1 Answer. SCooke · Stefan V. 1.2×1023 molecules. Hope this helps
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Oliga [24]

Answer:

Streak is tested by scraping a mineral across plate

Explanation: Hope this helps :)

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is the balanced equation for the synthesis of urea.
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