Answer:
Hertz (I guess you can say love HERTZ)
Explanation:
The hertz (image: Hz) is the determined unit of recurrence in the International System of Units (SI) and is characterized as one cycle for every second. It is named after Heinrich Rudolf Hertz, the principal individual to give definitive evidence of the presence of electromagnetic waves.
Answer:
e. Mg₃N₂(s) + 6H₂O(l) → 3Mg(OH)₂(s) + 2NH₃(g)
Explanation:
All the following are oxidation–reduction reactions except:________
a. H₂(g) + F₂(g) → 2HF(g). Redox. H is oxidized and F is reduced.
b. Ca(s) + H₂(g) → CaH₂(s). Redox. Ca is oxidized and H is reduced.
c. 2K(s) + 2H₂O(l) → 2KOH(aq) + H₂(g). Redox. K is oxidized and H is reduced.
d. 6Li(s) + N₂(g) → 2Li₃N(s). Redox. Li is oxidized and N is reduced.
e. Mg₃N₂(s) + 6H₂O(l) → 3Mg(OH)₂(s) + 2NH₃(g). Not redox. All the elements have the same oxidation number
The heat required to increase the temperature of 1.20 g of water is 80,256 k/j
<h3>What is specific heat?</h3>
The amount of energy needed to raise the temperature of one gram of a substance by one degree Celsius.
4. 18 J heat is required to change the temperature of 1.20 kg of water from 23. 00 °c to 39. 00 °c.
The heat required to raise temperature is the product of mass, specific heat and temperature change
1,200 × 4.18 × (39 − 23) = 80,256
Thus, the heat required to increase the temperature of 1.20 g of water is 80,256 k/j
Learn more about specific heat
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Explanation:
Atomic number of chromium is 24 and electronic configuration of is as follows.
:
Atomic number of copper is 29 and electronic configuration of is as follows.
:
Atomic number of cobalt is 27 and electronic configuration of is as follows.
:
Answer:
I think the answer is A the central atom in n2 has expanded octet.