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labwork [276]
2 years ago
13

Write a balanced molecular equation (photo)

Chemistry
1 answer:
nalin [4]2 years ago
5 0

Answer:

Ba + 2HCl = BaCl₂ + H₂

Explanation:

The equation for Magnesiunm's reaction with hydrochloric acid is

Mg + 2HCl = MgCl₂ + H₂

So, just replace magnesium in the equation above and you get the equation for barium's reaction with hydrochloric acid.

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3 years ago
What is the pH of a solution prepared by dissolving<br>0.8 g NaOH in water to make 200 mL solution?​
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Answer:

pH>7

Explanation:

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hope it's helpful.

3 0
3 years ago
Read 2 more answers
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Given the reaction: A + B &lt;--&gt; C + D
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Answer:

A.) 4.0

Explanation:

The general equilibrium expression looks like this:

K = \frac{[C]^{c} [D]^{d} }{[A]^{a} [B]^{b} }

In this expression,

-----> K = equilibrium constant

-----> uppercase letters = molarity

-----> lowercase letters = balanced equation coefficients

In this case, the molarity's do not need to be raised to any numbers because the coefficients in the balanced equation are all 1. You can find the constant by plugging the given molarities into the equation and simplifying.

K = \frac{[C]^{c} [D]^{d} }{[A]^{a} [B]^{b} }                                       <----- Equilibrium expression

K = \frac{[2 M] [2 M]}{[1 M] [1 M] }                                     <----- Insert molarities

K = \frac{4}{1  }                                                <----- Multiply

K = 4                                                <----- Divide

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