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dsp73
2 years ago
6

Which is the correct Lewis dot structure of NH2? A.A B.B C.C D.D E.E

Chemistry
2 answers:
TiliK225 [7]2 years ago
7 0
The answer i got is D!!
Anarel [89]2 years ago
5 0

I think D is your answer

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having that coloration is selected for since many predators will recognize it and stay away. Therefore the common coloration is
garri49 [273]

Answer: Natural selection.

Explanation:

The natural selection is the process by which the organism that best suits the characters will survive and the organism which cannot adapt the changes will die.

The predators feed on their prey and the organism which hides easily in the environment due to its color is safe and the animals that cannot camouflage will die.

This is natural selection that more favored character is carried out over generations and other that cannot survive die.

5 0
3 years ago
Mg3N2(s)+6H2O(l)→3Mg(OH)2(s)+2NH3(g) When 36.0 g of H2O react, how many grams of NH3 are produced? When 36.0 g of H2O react, how
Afina-wow [57]

Answer:

11.3 g of NH_{3} are produced from 36.0 g of H_{2}O

Explanation:

1. The balanced chemical equation is the following:

Mg_{3}N_{2}(s)+6H_{2}O(l)=3Mg(OH)_{2}(s)+2NH_{3}(g)

2. Use the molar mass of the H_{2}O, the molar mass of the NH_{3} and the stoichiometry of the balanced chemical reaction to find how many grams of NH_{3} are produced:

Molar mass H_{2}O = 18\frac{g}{mol}

Molar mass NH_{3} = 17\frac{g}{mol}

36.0gH_{2}O*\frac{1molH_{2}O}{18gH_{2}O}*\frac{2molesNH_{3}}{6molesH_{2}O}*\frac{17gNH_{3}}{1molNH_{3}}=11.3gNH_{3}

Therefore 11.3 g of NH_{3} are produced from 36.0 g of H_{2}O

3 0
2 years ago
Se dispone de 100 mL de una disolución 0.15M de hidróxido de
makkiz [27]

Answer:

pH = 13.18

Explanation:

pOH = -log[OH-] = -log(0.15) = 0.82

pH + pOH = 14

pH = 14 - 0.82 = 13.18

3 0
2 years ago
Can someone please help
hram777 [196]

Answer: usuhduhduhdjhd

Explanation:

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8 0
2 years ago
How many atoms are found in the chemical formula below?*<br> Al2(SiO3)2
SCORPION-xisa [38]

Answer:

10 atoms

Explanation:

To find out the number of atoms: MULTIPLY all the SUBSCRIPTS in the molecule by the COEFFICIENT.

4 0
3 years ago
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