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Anestetic [448]
2 years ago
10

HELP PLEASEEEEEEEE HELPPPPPPP (IMAGE)

Chemistry
1 answer:
lapo4ka [179]2 years ago
5 0
1. Liquid
2. Gas
3. Solid
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The molecular mass of a substance refers to the:
ololo11 [35]

Answer:

A

Explanation:

it's the sum of the masses of all the atoms in the molecule

please like and Mark as brainliest

3 0
3 years ago
PLZ HELP ITS A TEST AND GIVE ME THE RIGHT ANSWER
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There’s no question?
6 0
3 years ago
Complete the following conversion.<br> 25.0 °C =<br> °F
olga nikolaevna [1]

Answer: 25°C=77°F

Explanation:

FORMULA

F=9/5 C+32

-----------------------------------

Given: C=25°

F=9/5 C+32

F=9/5 (25)+32

F=45+32

F=77°

Hope this helps!! :)

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4 0
3 years ago
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Which of the following pairs of aqueous solutions will form a precipitate when mixed?
olya-2409 [2.1K]

Answer:

The correct answer is A) Pb(C₂H₃O₂)₂ + Li₂SO₄

Explanation:

  • All salts of Na, K and ammonium are soluble.
  • All nitrates are soluble.
  • All chlorides are soluble, with the exception of AgCl, Hg₂Cl₂, PbCl₂ and CuCl.
  • All sulfates are soluble, with the exception of CaSO₄, SrSO₄, BaSO₄, PbSO₄, HgSO₄, Hg₂SO₄ and Ag₂SO₄.
  • All hydroxides are poorly soluble, with the exception of alkaline hydroxides, Sr(OH)₂, Ba(OH)₂ and NH4(OH)
  • All carbonates are poorly soluble, with the exception of alkaline carbonates and ammonium carbonate.
  • All sulfides are poorly soluble, with the exception of alkaline sulfides, alkaline earth sulfides, and ammonium sulfide.

The reaction A is:

Pb(C₂H₃O₂)₂ + Li₂SO₄ ⇒PbSO₄ + 2 LiC₂H₃O₂

Lead sulfate is a slightly soluble solid, therefore it precipitates.

6 0
3 years ago
How many sigma and pi bond are there in naphthalene? ​
algol [13]

Explanation:

there are 19 sigma and 5 pi bonds in naphthalene

7 0
1 year ago
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