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Ronch [10]
3 years ago
13

Identify what type of reaction is below. Also determine what coefficients that would balance the chemical equation. ___ HCl + __

_Zn → ___ H2 + ___ZnCl2 A) Double Replacement; 2, 1, 1, 1 B) Single Replacement; 2, 1, 1, 1 C) Synthesis; 1, 2, 1, 2 D) Double Replacement; 1, 2, 1, 1
Chemistry
1 answer:
egoroff_w [7]3 years ago
6 0

Answer:

Single Replacement; 2, 1, 1, 1

Explanation:

2HCl + Zn → H2 + ZnCl2

In a single replacement reaction, one specie is replaced by another specie in a chemical reaction.

If we look at the reaction above, zinc metal reacted with hydrochloric acid. The reaction proceeds in such a manner that zinc replaces hydrogen in hydrochloric acid. This is a single replacement reaction because only one chemical specie is displaced in the reaction.

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assume that a water balloon has the same number of water molecules as a helium balloon has helium atoms. If the mass of the wate
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Answer : The mass of the water molecule is 4.5 times greater than the mass of the helium atom.

Explanation :

Assumption : The number of water molecules is equal to the number of helium atoms

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Now these two masses expression put in the equation (1), we get

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Why do single cell organisms divide?
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2 years ago
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