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Mama L [17]
2 years ago
6

In the reaction 2k (s) + 2h2oh (aq) + h2 (g) which of the reactants is a solid

Chemistry
1 answer:
Y_Kistochka [10]2 years ago
4 0
Answer is A. Because K is potassium which is a metal
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Cuántos electrones de Valencia tiene Ga
Zinaida [17]
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p1

Primero realizas la configuración electrónica que es la que te puse allá arriba.

Después miras el nivel en que termina, puede ser 1, 2, 3, 4 etc.

Entonces como el último número de la configuración electrónica es 4, entonces ese es el nivel

Y los electrones de el último nivel son los de Valencia

4s2, 4p1 sumas 2+1 que son los electrones que se encuentran en el último nivel.

por eso hay 3 electrones de valencia.
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2 years ago
What states of matter were present when pure water reached its boiling point
maxonik [38]
I believe it’s evaporation?
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How many liters are equivalent to 43 milliliters?
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The answer is B) 0.043 L

Explanation:

Hope this helps :))

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