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3 years ago

1.what happens when vinegar and baking soda are passed through lime water?

Chemistry

1 answer:

lisabon 2012 [21]3 years ago

6 0

Answer:

vinegar and baking soda when mixed forms Carbon dioxide which turns lime water milky.

Explanation:

due to properties of Co2 lime water turns milky. The Answer would be A

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Which of the following is an example of a phase change from liquid to gas?

netineya [11]

Correct answer to this question is c. water evaporating

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3 years ago

Read 2 more answers

Iron fluoride (FeF2) dissociates according to the following equation:

melomori [17]

Answer:

S = 0.788 g/L

Explanation:

The solubility product (Kps) is an equilibrium solubization constant, which can be calculated by the equation:

$Kps = \frac{[product]^x}{[reagent]^y}$

Where x and y are the stoichiometric coefficients of the product and the reagent, respectively. Because of the aggregation form, the concentration of solids is always equal to 1 for use in this equation.

Analyzing the equation, we see that for 1 mol of $Fe^{+2}$ is necessary 2 mols of $F^-$ , so if we call "x" the molar concentration of $Fe^2$ , for $F^-$ we will have 2x, so:

$Kps = [Fe^{+2}].[F^-]^2\\\\2.36x10^{-6} = x(2x)^2\\\\2.36x10^{-6} = 4x^3\\\\x^3 = 5.9x10^{-7}\\\\x = \sqrt[3]{5.9x10^{-7}} \\\\x = 8.4x10^{-3} mol/L$

So, to calculate the solubility (S) of FeF2, which is in g/L, we multiply this concentration by the molar mass of FeF2, which is:

Fe = 55.8 g/mol

F = 19 g/mol

FeF2 = Fe + 2xF = 55.8 + 2x19 = 93.8 g/mol

So,

[tex]S = 8.4x10^{-3}x93.8

S = 0.788 g/L

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4 years ago

Pls help me I have 5 mins Science is a unique field of thought because it relies on _______ to describe the world

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Most reasonable answer:
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3 years ago

A radical is a reactive intermediate with a single ____________ electron, formed by ____________ of a covalent bond. Allylic rad

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3. A: Initiator

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3 years ago

6) 3.2 grams of sodium chloride is dissolved to make 0.25 liters of solution. Hint Convert grams to moles first! Molar mass of N

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Which solution is the least concentrated?

O 2 moles of solute dissolved in 4 liters of solution

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3 years ago