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julia-pushkina [17]
3 years ago
8

Solid lead(II) sulfide reacts with aqueous hydrochloric acid to form solid lead(II) chloride and dihydrogen sulfide gas. Express

your answer as a chemical equation.
Chemistry
1 answer:
Vikentia [17]3 years ago
6 0

PbS(s) + 2HCl(aq) \rightarrow PbCl_2(s) + H_2S(g)

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The mass of a substance is 27.46 g and its volume is 3.42 mL. What is the density of the substance? (hint: density = mass ÷ volu
marin [14]

Answer:

<h2>8.03 g/mL</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question we have

density =  \frac{27.46}{3.42}  \\  = 8.029239

We have the final answer

<h3>8.03 g/mL</h3>

Hope this helps you

7 0
3 years ago
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How are the digestive system and the urinary system similar?
Olenka [21]

Answer:

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4 0
3 years ago
Fill the three 3d subshells with the specified number of electrons.
lana66690 [7]

1. 5 electrons.

3d^{5}

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3d^{6}

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3. 7 electrons.

3d^{7}

  • The 3d subshells blanks will be:
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Hope you could understand.

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8 0
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The equation for the pH of a substance is pH = –log[H+], where H+ is the concentration of hydrogen ions. A basic solution has a
Rzqust [24]
For the basic solution:
11.2 = -log[H+]
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For the acidic solution:
2.4 = -log[H+]
[H+] = 3.98 x 10⁻³
The difference:
3.98 x 10⁻³ - 6.31 x 10⁻¹²
≈ 4.0 x 10⁻³
The answer is B
3 0
3 years ago
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The process in which particles dissolve by breaking apart and shattering is called
professor190 [17]
<span>The process in which particles dissolve by breaking apart and shattering is called </span>dissociation. I hope this helped
4 0
4 years ago
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