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mr_godi [17]
3 years ago
7

if the products of a reaction are nacl and h2o what does the law of conservation of mass reveal about the reactants in the react

ion?
Chemistry
2 answers:
yawa3891 [41]3 years ago
5 0

B. The reactants will have one Na, one Cl, one O, and two H atoms.


Alika [10]3 years ago
3 0
The law of conservation of mass in chemical reactions states that the same number of atoms of each element present in the reactants are present in the products.

So, the law of conservation of mass reveals that the reactants for a reaction where the products are NaCl and H2O contain the same elements and the same number of each: Na, Cl, H and O.

For example, the reaction may have been: NaOH + HCl ---> NaCl + H2O.

In a chemical reaction, the atoms are not created nor destroyed; the same atoms of each alement are present in reactants and products.
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3 years ago
Use the reaction given below to solve the problem that follows: Calculate the mass in grams of aluminum oxide produced by the re
bearhunter [10]

Answer:  28.4 g of aluminum oxide is produced by the reaction of 15.0 g of aluminum metal

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}   

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According to stoichiometry :

4 moles of Al produce == 2 moles of Al_2O_3

Thus 0.556 moles of Al will produce=\frac{2}{4}\times 0.556=0.278moles  of Al_2O_3

Mass of Al_2O_3=moles\times {\text {Molar mass}}=0.278moles\times 102g/mol=28.4g

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7 0
2 years ago
One sound is loud and another is quieter. What must be different about these two sound waves?
tankabanditka [31]
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Answer:

25 kj

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