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yanalaym [24]
3 years ago
15

Which of the following is most likely to produce heat energy?

Chemistry
2 answers:
Nina [5.8K]3 years ago
4 0

Answer:

B.Convection

the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.

Otrada [13]3 years ago
3 0

Answer:

B.

Explanation:

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If boron atoms have 5 electrons, how many electrons are in the outer electron shell of a boron atom?
ANEK [815]

Answer:

3

Explanation:

The first election shell can only hold 2 electrons, but the next one can hold up to 8

3 0
2 years ago
Which phrase describes a characteristic of an Arrhenius base?
Tom [10]

 The phrase  that describes a   characteristic   of an Arrhenius base is  that Arrhenius  base add  hydroxide  ions  to  the solution ( answer C)

 

      <u><em>Explanation</em></u>

Arrhenius base  is a substance that  increases  the concentration  of OH-  in aqueous  solution.

The Common Arrhenius base are  group 1 and  2 hydroxide  such as LiOH, NaOH ,  Ba(OH)2  among others.  

for  example  NaOH  dissociate  as follows , NaOH  →  Na+(aq) + OH- (aq)


6 0
4 years ago
Read 2 more answers
Can someone help me with this
sergejj [24]

Answer: 5. Positive

6. Negative

9. Oxygen carbon hydrogen nitrogen

Explanation:

7 0
3 years ago
What happens when you combine ammonia and formaldehyde?
bija089 [108]

Answer:

The mechanism for the formation of hexamethylenetetraamine predicts the formation of aminomethanol from the addition of ammonia to formaldehyde. This molecule subsequently undergoes unimolecular decomposition to form methanimine and water.

Explanation:

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5 0
3 years ago
15. transition metals has ____ valence electrons
Gemiola [76]

2 valence electrons

Explanation:

Most transition metals have 2 valence electrons. Valence electrons are the sum total of all the electrons in the highest energy level (principal quantum number n). Most transition metals have an electron configuration that is ns2(n−1)d , so those ns2 electrons are the valence electrons.

8 0
3 years ago
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