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podryga [215]
3 years ago
10

How do you know if a reaction is endothermic?

Chemistry
1 answer:
Vikentia [17]3 years ago
6 0
In an exothermic reaction, heat is produced along with products. But in endothermic reaction, heat is absorbed. If the number of products is less than the sum of the enthalpies of the reactants, the reaction will be exothermic. If the number of products is more than the sum of the enthalpies of the reactants, the reaction is endothermic.
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Organize the following species in terms
ser-zykov [4K]

Explanation:

  1. F Cl Br
  • ionization energy decreases we move down the group
  • so Br<Cl<F

2. Na K Li

  • ionization energy decreases we move down the group
  • so K<Na<Li

3. C N O F

  • ionization energy increases as we move across the peroid
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plz mark as brainliest if it helps

6 0
3 years ago
If a question cannot be tested and observed, it cannot be answered with science. (2 points) True or False?
boyakko [2]

Answer:

True

Explanation:

If a question cannot be tested and observed, it cannot simply be answered by science.

Science works with observable and testable ideas and not on metaphysics.

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3 0
3 years ago
8. What group numbers are the transition elements in?
Anna007 [38]
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3 0
2 years ago
In the reaction of aluminum bromide with ionized sodium bromide which compoiund is the lewis acid
murzikaleks [220]
The answer is A) Aluminum Bromide 
hope this helps :)
3 0
2 years ago
Read 2 more answers
State the phenomenon exhibited by the two atoms<br>​
Volgvan

Answer:

<u><em>METALS</em></u>

Lose their valence electrons easily/ ionic by electron loss.

<u><em>NOMETAL</em></u>

Gain or share valence electrons easily/ ionic by electron grain.

6 0
2 years ago
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