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Marrrta [24]
3 years ago
7

For the following problems, identify the substance as either an element, a compound, or a mixture. Write E for Element, C for co

mpound, and M for mixture. 34. Silicon ___E__ 35. Salad dressing __M___ 36. Table Salt (NaCl) __C___ 37. Oatmeal with apples and raisins_____ 38. Lithium _____ 39. Copper Sulfate (CuSO4) _____
Chemistry
1 answer:
andre [41]3 years ago
3 0

Answer:

Explanation:

34. E

35. M

36. C

37. M

38. E

39. C

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What is a mixture?
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Ammonium carbonate NH4CO2NH2 decomposes as follows
BlackZzzverrR [31]

Answer:

Kp = 0.0146

Explanation:

We can solve this equilibrium problem using an ICE Table. There are 3 stages: I(Initial), C(Change) and E(Equilibrium). Only <em>gases</em> and <em>aqueous species</em> participate in the equilibrium.

    NH₄CO₂NH₂ ⇄ 2 NH₃(g) + CO₂(g)

I                                    0             0

C                                 +2x          +x

E                                   2x            x

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pNH₃ + pCO₂ = 0.463 atm

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Then,

pNH₃ = 0.308 atm

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