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daser333 [38]
3 years ago
12

What is the difference between a neutralization reaction and a double-displacement reaction? select one:

Chemistry
1 answer:
Rufina [12.5K]3 years ago
3 0
I believe the correct answer is option C. The difference between a neutralization reaction and a double-displacement reaction would be that neutralization reactions always produce water and a salt. Double displacement reaction is a reaction that involves reaction of two compounds where the cations and the anions of the reactants would switch places producing new compounds. Neutralization reaction, on the other hand, always involve the reaction of an acid and a base forming a salt and water. Example  of a double displacement reaction would be 2BaCl + Na2SO4 = Ba2SO4 + 2NaCl. An example of a neutralization reaction would be HCl + NaOH = NaCl + H2O.
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Which of the following are characteristics of vertebrates?
djverab [1.8K]
<span><u><em>Answer:</em></u>
All of the above

<u><em>Explanation:</em></u>
Vertebrates are a class of creatures falling under kingdom "<u>Animalia</u>" that are characterized by the presence of an internal skeleton composed of bones.

<u>Vertebrates are characterized by the following:</u>
1- presence of internal skeleton
2- developed brain
3- the presence of an advanced nervous system connected to the brain
4- presence of muscles that allow movement
5- protective skin
6- circulation of blood in the bodies in the vessels

Comparing the mentioned characteristics with the options given, we will find that the most suitable answer is: <u>"all of the above"</u>.

Hope this helps :)</span>
5 0
3 years ago
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MrRissso [65]

Answer:

6 atoms of oxygen

Explanation:

8 0
3 years ago
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2 years ago
How much heat is absorbed when a 298.3 g piece of brass goes from 30.0 to 150
igor_vitrenko [27]

Answer:

Q = 1360.248 j

Explanation:

Given data:

Mass of brass = 298.3 g

Initial temperature = 30.0°C

Final temperature = 150°C

Specific heat capacity of brass = 0.038 J/g.°C

Heat absorbed = ?

SOLUTION:

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = 150°C - 30.0°C  

ΔT = 120°C

Q = 298.3 g × 0.038 J/g.°C × 120°C

Q = 1360.248 j

3 0
3 years ago
I NEED HELP WITH 1-4 PLEASE ASAP!!!
Varvara68 [4.7K]

Answer:

1 is the same    3 is pure substance 4 is different

Explanation:

not sure about 2

5 0
3 years ago
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