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AysviL [449]
3 years ago
7

my attic keeps making sound and thombs wat does it mean iam creeped out right now it just happened and the lightbulb was shaking

Chemistry
1 answer:
BigorU [14]3 years ago
7 0

1. Make sure it isnt something other than a ghost(i.e. something falling)

2. Record what you see and hear

3. See if anyone hears the same thing as you(unless your home alone)

4. Be confident and dont be fearful because ghost sense fear

5. Pray or perform an exorsism( if this is part of your religion)

6. After the ghost leaves, clean up.( like literally mops the floors and stuff. it keeps the ghosts out)

Good Luck ! :]

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The arsenic in a 1.223 g sample of a pesticide was converted to H3AsO4 by suitable treatment. The acid was then neutralized, and
Vladimir79 [104]

Answer:

5.471% As₂O₃ in the sample.

Explanation:

<em>...the reaction is: Ag+ + SCN- => AgSCN(s) Calculate the percent As2O3 in the sample. (F.W. As2O3 = 197.84 g/mol).</em>

<em />

First, with the amount of KSCN we can find the moles of Ag in the filtrates. As we know the amount of Ag added we can know the precipitate of Ag and the moles of AsO₄ = 1/2 moles of As₂O₃ in the sample:

<em>Moles KSCN = Moles Ag⁺ in the filtrate:</em>

0.01127L * (0.100mol / L)= 0.001127moles Ag⁺

<em>Total moles Ag⁺:</em>

0.0400L * (0.0781mol/L) = 0.0031564 moles Ag⁺

<em>Moles of Ag⁺ in the precipitate:</em>

0.0031564 - 0.001127 = 0.0020294 moles Ag⁺

<em>Moles AsO₄ = Moles As:</em>

0.0020294 moles Ag⁺ * (1mol As / 3 moles Ag⁺) = 6.765x10⁻⁴ moles AsO₄

<em>Moles As₂O₃:</em>

6.765x10⁻⁴ moles AsO₄ * (1 mol As₂O₃ / 2 mol AsO₄) =

3.382x10⁻⁴ moles As₂O₃

<em>Mass As₂O₃:</em>

3.382x10⁻⁴ moles As₂O₃ * (197.84g/mol) = 0.0669g As₂O₃

Percent is:

0.0669g As₂O₃ / 1.223g sample * 100 =

<h3>5.471% As₂O₃ in the sample</h3>

<em />

7 0
3 years ago
Help Me???????????????
ikadub [295]
Something that is  special to you or event that means alot to you

3 0
3 years ago
A screw is an example of a modified 1 pulley 2 Wedge 3 inclined plane 4 wheel​
valentinak56 [21]

Answer: The answer would be D.

Explanation: When a screw is tightened into an object, it is wedge in between.

8 0
2 years ago
Bronze is an alloy made of mostly copper (Cu) and tin (Sn). What type of bond forms bronze?
Snezhnost [94]

Answer:

A. Metallic bond

Explanation:

Think about it: copper and tin are both common metals. That's how we know it's a metallic bond!

Why not B: Covalent bonds are between two nonmetals.

Why not C: Ionic bonds are between a nonmetal and a metal.

Why not D: Paired bond isn't a common phrase in chemistry.

6 0
4 years ago
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Ede4ka [16]

Answer: mitochondria

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