Charles Lyell believed that:

Chemistry

1 answer:

marusya05 [52]3 years ago

8 0

All rocks are formed from heat and pressure

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For the reaction: 3 KClO3 to 3 KCL + 4O2, How many miles of potassium chloride are produced from 9.3 grams of potassium chloride

Valentin [98]

5.7 g of KCl is produced.

<u>Explanation:</u>

First we have to write the balanced equation as,

$2 K C l O_{3} \rightarrow 2 K C l+3 O_{2} \uparrow$

Then we have to find the moles of potassium chlorate as,

$Moles of $K C l O_{3}=9.3 g$ of $K C l O_{3} \times \frac{1 \text { mol of } K C l O_{3}}{122.55 g K C l O_{3}}=0.076$ moles$

Then we have to find the moles of KCl as,

$Moles of $\mathrm{KCl}=0.076$ moles of $\mathrm{KClO}_{3} \times \frac{2 \text { mol of } \mathrm{KCl}}{2 \text { mol } \mathrm{KClo}_{3}}=0.076$ moles$

From the moles of KCl, we have to find the mass using its molar mass by multiplying them as,

$\text { Mass of } \mathrm{KCl}=0.076 \text { mol } \times 74.55 \frac{g}{\mathrm{mol}}=5.7 \mathrm{g} \text { of } \mathrm{KCl}$

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3 years ago

Describe the solubility of water compared to ethanol?

Neko [114]

As you know ethanol is a an alcohol and alcohol is a hydrocarbon. Alcohol is made up of a carbon chain which Is always non polar and a OH group which is polar. According to the solubility rule like substances dissolves like substance. Using ethanol chemical formula. Ethanol has a 2 carbon chain and a OH group. water is polar so it will be attracted to the OH group. Carbon chain on the other hand is nonpolar so it will be repelled from the water.

Therefore the Solubility of alcohols is determined by the stronger of the two forces. The strength of the attraction of the OH group, and the amount of water they dissolve in.

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2 years ago

Set up the ion formation equations, with ionization energy values for each electron in the valence layer, of the atoms of the ch

devlian [24]

Explanation:

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