An acid <span>is a compound that increases hydrogen ions (H+) when it is dissolved in a solution.
</span>The term alkaline is related to <span>compound that increases the hydroxide ions (OH−) when it is dissolved in a solution.
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pH refers to <span>a value from 0 to 14 that is used to specify how acidic or basic a compound is when it is dissolved in water
An </span>ion is <span>an atom or molecule that has a positive or negative charge.</span>
Hello!
To answer this question you need to first write the chemical equation for this reaction:
2Na(s) + Cl₂ → 2NaCl
Now, you know that to react 1 mol of Chlorine gas you'll need 2 moles of sodium, this can be written as follows:
(1)So, the last step in solving this problem is to know how many moles of Chlorine you have. For that, you'll use the Ideal Gas Law which states that:
(2)Where P is pressure, V is volume, n is the amount of the gas in moles, R is the Constant of the Ideal Gases and T is the temperature.
The final step is replacing the expression
(2) in
(1) and you're good to go!
I won't give the answer to this problem, just leave the equation for you to replace the values.
A and C are the correct answers. Because there is no gravity to pull fluids down, they are in your face and hands more than normal. Our bones and muscles become weaker because without gravity objects lack weight.
Answer:
[F⁻]² = 0.068 M
Explanation:
ZnF₂(s) ⇌ Zn²⁺(aq) + 2F⁻(aq)
At equilibrium the Kps can be calculated by the following equation:
Kps = [Zn²⁺][F⁻]²
Therefore, the concentration of F⁻¹ can be calculated:
[F⁻]² = Kps/ [Zn²⁺]
[F⁻]² = = 3.0 x 10⁻² / 4.4 x 10⁻¹M
[F⁻]² = 0.068 M
The answer is a graduated cylinder