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ExtremeBDS [4]
3 years ago
5

Solid iron(II) sulfide reacts with aqueous hydrochloric acid HCl to produce hydrogen sulfide gas H2S and aqueous iron(II) chlori

de .
Chemistry
2 answers:
ozzi3 years ago
7 0
FeS(s)+ 2HCl(aq) --> H2S (g) + FeCl2 (s)
Ivan3 years ago
6 0

Answer:

2HCl(aq)+FeS(s)→H_{2}S(g)+FeCl_{2}(aq)

Explanation:

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Which particle is a neutron most equal to in mass? A. a molecule B. an atom C. a proton D. an electron
olchik [2.2K]

Answer:

c . a proton

Protons and neutrons have approximately the same mass, about 1.67 × 10−24 grams

5 0
3 years ago
How many Liters of a 4.5 M HCL solution can be prepared by using 250.0 mL of a 12.0 M HCl solution?
netineya [11]

Answer:

0.667 L

Explanation:

From the question given above, the following data were obtained:

Initial volume (V₁) = 250 mL

Initial concentration (C₁) = 12 M

Final concentration (C₂) = 4.5 M

Final volume (V₂) =?

The final volume of the solution can be obtained by using the dilution formula as illustrated below:

C₁V₁ = C₂V₂

12 × 250 = 4.5 × V₂

3000 = 4.5 × V₂

Divide both side by 4.5

V₂ = 3000 / 4.5

V₂ = 667 mL

Finally, we shall convert 667 mL to L. This can be obtained as follow:

1000 mL = 1 L

Therefore,

667 mL = 667 mL × 1 L / 1000 mL

667 mL = 0.667 L

Thus, the volume of the solution prepared is 0.667 L

3 0
3 years ago
The outermost shell of an atom in known as ??​
melisa1 [442]

Answer:

<em>The</em><em> </em><em>a</em><em>n</em><em>s</em><em>w</em><em>e</em><em>r</em><em> </em><em>is</em><em> </em><em>valance</em><em> </em><em>shell</em><em>.</em>

<em>Valance</em><em> </em><em>shell</em><em> </em><em>is</em><em> </em><em>the</em><em> </em><em>outermost</em><em> </em><em>shell</em><em> </em><em>of</em><em> </em><em>an</em><em> </em><em>atom</em><em> </em><em>which</em><em> </em><em>contains</em><em> </em><em>valance</em><em> </em><em>electrons</em><em> </em><em>on</em><em> </em><em>it</em><em> </em><em>of</em><em> </em><em>an</em><em> </em><em>atom</em><em> </em><em>of</em><em> </em><em>an</em><em> </em><em>elements</em><em>. </em>

<em><u>Hope</u></em><em><u> </u></em><em><u>it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

8 0
3 years ago
Which of the following molecules contains a polar covalent bond?
jek_recluse [69]

Answer:

ummm well you have to go to school I

5 0
2 years ago
Select the best definition of salt water:
hoa [83]
Water that contains large amounts of disolved salts
4 0
2 years ago
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