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kiruha [24]
3 years ago
15

Explain difference in melting points for the elements Na and Mg

Chemistry
1 answer:
Savatey [412]3 years ago
6 0

Answer:

magnesium has a greater charge, there will be greater attraction between delocalised electrons and the positively charged ion.

Explanation:

I did this once and got it right I hope you get it right too

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Given [OH-] = 5.5 x 10-10M Find: [H3O+] and pH Is this acidic, basic or neutral?
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Answer:

Explanation:

Given parameters:

Hydroxide ion concentration = 5.5 x 10⁻¹⁰M

Unknown:

concentration of hydroxonium ion [H₃O⁺]= ?

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Solution

To determine the concentration of the hydroxonium ion, we know that from the ionic product of water:

                        [H₃O⁺][OH⁻]= 10⁻¹⁴

                        [H₃O⁺] = \frac{10^{-14} }{OH^{-} }

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To find the pH of the solution, we use the expression below:

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8 0
3 years ago
8. Zeolite is used to remove moisture from methane. A vertical column is filled with 1000.0 kg of dry zeolite. The zeolite has t
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Answer:

Follows are the solution to this question:

Explanation:

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One kilogram of Dry Zeolite will carry water from =0.1000\ kg

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3 0
3 years ago
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The density of water is about 1kg/m³, therefore is the substance has a density of less than 1kg/m³ then it will most likely float however if it is more than 1kg/m³ then it will most likely sink.
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