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2 years ago

What type of ions are usually formed by the left side of the periodic table?

2 answers:

7 0

Hello,

They ions usually formed by the left side of the periodic table are positively charged Ions.

Thanks for using brainly.

vitfil [10]2 years ago

7 0

The elements on the left side have a positive charge, so they are cations. Cations have a positive charge.

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2 years ago

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List four elements used in dfds, draw the symbols, and explain how they are used.

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3 years ago

A researcher measures the equilibrium separation between two flat hydrophilic mica plates in a solution of non-ionic surfactant.

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Answer:

See explaination and attachment

Explanation:

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3 years ago

Calculate the mass of chromium metal produced when 425.0mL of 0.25M chromium(ll) nitrate reacts with a strip of zinc that remain

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The balanced chemical equation for the production of chromium metal from the reaction of chromium(ll) nitrate reacts with a strip of zinc is:

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This is a redox reaction, which is a chemical reaction in which one or more electrons are transferred between the reagents, causing a change in their oxidation states. In the proposed reaction, Cr oxidation state goes from +3 to 0, becoming metallic chromium, while Zn goes from being Zn⁰ to Zn²⁺.

The mass of chromium metal produced in the above reaction will be,

425.0 mL x $\frac{1 L}{1000 mL}$ x $\frac{0.25 mol Cr(NO_{3})_{3} }{1 L}$ x $\frac{2 mol Cr }{2 mol Cr(NO_{3})_{3} }$ x $\frac{51.9961 g Cr}{1 mol Cr}$ = 5.52 g

So, the mass of chromium metal produced when 425.0mL of 0.25M chromium(ll) nitrate reacts with a strip of zinc that remains in excess is 5.52 g of Cr.

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2 years ago

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Answer:

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Explanation:

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