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VladimirAG [237]
3 years ago
7

1.What zodiac sign is October 19,2006? A). Sagittarius B). Libra C). Leo D). Pisces

Chemistry
2 answers:
NARA [144]3 years ago
7 0

Answer:

Libra

Explanation:

Libra is from September 23 to October 22

<u>Answered by me ofccc </u>

<em>Add me on Brainly and Padlet at </em><u><em>chuche17✌️</em></u><em> </em>

MrMuchimi3 years ago
5 0

Answer:

B. Libra

Explanation:

Libra's range from September 23rd to October 22nd

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A student mixes a solution of lead (II) nitrate with a solution of potassium iodide and notices the formation of a yellow solid.
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Lead (II) iodide

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The reaction of lead (II) nitrate, Pb(NO₃)₂ with KI is:

Pb(NO₃)₂(aq) + 2KI(aq) → KNO₃(aq) + PbI₂(s)

This is a typical double-replacement reaction where anions and cations exchange its couple.

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What tools do scientist use
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Nitric oxide is formed in automobile exhaust when nitrogen and oxygen in air react at high temperatures.N2(g) + O2(g) 2NO(g)The
yanalaym [24]

Answer : The correct option is, (E) 7.8 atm

Explanation :

The partial pressure of N_2 = 8.00 atm

The partial pressure of O_2 = 5.00 atm

K_p = 0.0025

The balanced equilibrium reaction is,

                               N_2(g)+O_2(g)\rightleftharpoons 2NO(g)

Initial pressure     8.00      5.00            0

At eqm.               (8.00-x) (5.00-x)        2x

The expression of equilibrium constant K_p for the reaction will be:

K_p=\frac{(p_{NO})^2}{(p_{N_2})(p_{O_2})}

Now put all the values in this expression, we get :

0.0025=\frac{(2x)^2}{(8.00-x)\times (5.00-x)}

By solving the terms, we get:

x=0.15atm

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