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posledela
3 years ago
15

A student was given four unknown solutions. Each solution was checked for. conductivity and tested with. phenolphthalein. The re

sults are shown in the data table below
based on the data table which unknown solution could be 0.1 M NaOH
1.A. 2.B
3.C. 4.D
The table is that it talks about is in the picture attached

Chemistry
1 answer:
777dan777 [17]3 years ago
4 0

Answer: (3) C

Explanation:

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Answer:

Db

Dubnium/Symbol

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Is Pb(NO3)2 soluble or insoluble?
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Explanation: nitrates are soluble.

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4 years ago
When 0.313 g of Mg is heated strongly in a nitrogen (N2) atmosphere, a chemical reaction occurs. The product of the reaction wei
borishaifa [10]

Answer:

Mg₃N₂ (magnesium nitride)

Explanation:

M(total) = M(mg) + M (n)

M (n) = M(total) -  M(mg)

        = 0.433g - 0.313g

        = 0.12g

mole (N) =  0.12g / 14.0067 g/mol

              = 0.008567

mole Mg = 0.313g / 24.3050 g/mol

              = 0.012878

Mg = 0.012878 / 0.008567

     = 1.5

N = 0.008567 / 0.008567

   = 1

multiply by 2 to get whole numbers

Mg = 1.5 × 2 = 3

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Mg₃N₂ (magnesium nitride)

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Mol of CO2 are produced.<br> When 2.5 mol of O2 are consumed in their reaction,
monitta

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1.5 moles

Explanation:

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