Which compound is soluble in water?(1) PbS (3) Na2S(2) BaS (4) Fe2S3
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This chemical is commonly used in the pulp andpaper industry. Sodium sulfide compounds are usually used in chemicalphotography, textile bleaching, making dyes, and even detergents.
The other 3 compounds are non-soluble in water. Theircompositions are mostly metal in nature and require other process to transformthem into different compound forms.
Answer;
(3) Na2S
Explanation;
- All sodium salts are soluble in water. Therefore, sodium sulfide will be soluble in water.
- All sodium, potassium, and ammonium salts are soluble in water. The chlorides, bromides, and iodides of all metals except lead, silver, and mercury are also soluble in water.
- The sulfides of all metals except barium, calcium, magnesium, sodium, potassium, and ammonium are insoluble in water.
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Hi i need hel does any one know what P3N2 means ??? .-.
Your boss asks you to design a room that can be as soundproof as possible and provides you with threesamples of material. The only information on each sample's label is the material's coefficient of absorption. The coefficient of absorption listed on Sample A is 30%, on Sample B is 47%, and on Sample C is 62%. When your boss asks for your choice and the reasoning behind it, what would you tell him? A. Sample A would be best, because the percentage of the energy in an incident wave that remains in a reflected wave from this material is the smallest. B. Sample C would be best, because the percentage of the energy in an incident wave that remains in a reflected wave from this material is the smallest. C. Sample C would be best, because the percentage of the energy in an incident wave that remains in a reflected wave from this material is the largest. D. Sample A would be best, because the percentage of the energy in an incident wave that remains in a reflected wave from this material is the largest.
Is it easier to form a positive ion with an element that has a high ionization energy or element that has a low ionization energy? Explain.
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a. True
b. False
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b. 18F
c. 20Ne
d. 23Na
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C. 20Ne
19F has 19-9=10 neutrons
Ne=20-10=10 neutrons
Determine the total number of moles of oxygen that react completely with 8.0 moles of C2H6.
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The number of moles of O₂ will be 28 moles.
The given balanced reaction:
From the above reaction,
2 moles of C₂H₆ nd 7 moles of O₂ reacts together to produce 4 moles of CO₂ and 6 moles of H₂O.
Given:
Number of moles of C₂H₆ = 8
To find:
Number of moles of O₂=?
2 moles of C₂H₆ reacts with 7 moles of O₂.
1 mol of C₂H₆ = moles of O₂
8 moles of C₂H₆ = moles of O₂
Thus, number of moles of O₂ will be 28 moles.
Find more information about "Number of moles" here:
when the aim is to show electron distributions in shells
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An orbital notation is more appropriate if you want to show how the electrons of an atom are distributed in each subshell. This is because there are some atoms that have special electronic configurations that aren't obvious in just written configurations.
Answer:
d
Explanation:
on edg 2020
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Milk is basic when it is fresh but when it sours, the bacteria reduces its pH to an acidic level. Thus it is Soap