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hjlf
3 years ago
10

Which symbol represents a particle with a total of 10 electrons

Chemistry
1 answer:
vova2212 [387]3 years ago
7 0
Al3+ is the answer. :)
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3.<br> КОН<br> +<br> —<br> —<br> Н3РО4<br> 1<br> +<br> K3PO4<br> —<br> Н,0<br> —
expeople1 [14]
What does this mean?
3 0
3 years ago
Given the following UNBALANCED reaction: NH3 (g) &lt;--&gt; N2 (g) + H2 (g) If 1
Yakvenalex [24]

Answer:

C. 1.35

Explanation:

                                                     2NH3 (g) <-->          N2 (g) +             3H2 (g)

Initial concentration                2.2 mol/0.95L       1.1 mol/0.95L           0

change in concentration        2x                             x                           3x

                                                 -0.84 M                  +0.42M                +1.26M

Equilibrium                       1.4 mol/0.95L=1.47M        1.58 M                   1.26 M

concentration

Change in concentration(NH3) = (2.2-1.4)mol/0.95 L = 0.84M

Equilibrium concentration (N2) = 1.1/0.95 +0.42=1.58 M

Equilibrium concentration(NH3) = 1.4/0.95 = 1.47M

K = [N2]*{H2]/[NH3] = 1.58M*1.26M/1.47M = 1.35 M

8 0
3 years ago
If a 3.0 picogram (pg) sample of curium-245 has a half-life of 8500 years, which conclusion can be drawn?
fomenos

Answer:

its A

Explanation:

8 0
3 years ago
Why does wood burn with a flame when it is a solid fuel
Assoli18 [71]
1) Substances ( Solid<span>, Liquid, Gases ) which produce vapors will </span>burn<span> with </span>flame<span>. ... A yellow </span>flame<span> is produced during incomplete combustion of a substance. In Kerosene stove if yellow </span>flame<span> is observed then it indicates the incomplete combustion which may be due to the insufficient supply of oxygen gas. is it from researching so good luck :D </span>
8 0
3 years ago
What type of reaction is pb(no3)2(aq) + 2kcl(aq) ® pbcl2(s) + 2kno3(aq)?
Sladkaya [172]

The given reaction is,

Pb(NO_{3})_{2}(aq) +2 KCl(aq) --->PbCl_{2}(s) + 2 KNO_{3}(aq)

In this reaction, the positive and negative ions of both the reactants rearrange resulting in the formation of new compounds. Such a reaction is referred to as the double replacement or the double displacement reaction. These type of reactions usually take place in aqueous medium and one of the products is a precipitate.

Double displacement reactions are of three types, precipitation reaction, neutralization reaction and reaction involving the formation of a gas. The given reaction is a precipitation reaction as one of the products is a solid.

6 0
3 years ago
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