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4 years ago

7

Moseley made revisions to the periodic table that resolved some of the problems with Mendeleev’s version. Which of these was a r

esult of his revisions to the periodic table?

1 answer:

olga55 [171]4 years ago

5 0

The result of Moseley's revisions were that the elements were arranged in atomic number order rather than atomic mass order.

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If the mass of a material is 118 grams and the volume of the material is 12 cm3, what would the density of the material be?

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A chemical equation that lists those species only which are participating in the reaction is said to be a net-ionic equation. It is commonly used in double-displacement reactions, acid-base neutralization reactions, and redox reactions.

In order to write the net ionic equation:

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The strong electrolytes are break into their respective ions with correct formula and number of ions.
The common ions on both the sides that is on reactant and product side are cancelled out.
The resulting equation is a net-ionic equation

The molecular equation between perchloric acid, $HClO_4$ in water, $H_2O$ is:

$HClO_4(aq) + H_2O(l)\rightarrow H_3O^{+}(aq) + ClO_{4}^{-}(aq)$

Breaking the strong electrolytes in their respective ions:

$H^{+}(aq) + ClO_4^{-} (aq) + H_2O(l)\rightarrow H_3O^{+}(aq) + ClO_{4}^{-}(aq)$

Cancelling the common ion, $ClO_{4}^{-}(aq)$ from both the sides:

$H^{+}(aq) + H_2O(l)\rightarrow H_3O^{+}(aq)$

Hence, the net ionic equation between perchloric acid, $HClO_4$ in water, $H_2O$ is:

$H^{+}(aq) + H_2O(l)\rightarrow H_3O^{+}(aq)$

Since, the production of $H_3O^{+}$ takes place so, the perchloric acid, $HClO_4$ acts as an acid by donating proton, $H^{+}$ ion to water.

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4 years ago

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