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V125BC [204]
3 years ago
5

An emerald can be described as...

Chemistry
1 answer:
Aliun [14]3 years ago
3 0

Answer:

green gemstone

Explanation:

hope this helps someone

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Calculate the mass percent of oxygen in CO2<br> (Work shown)
Genrish500 [490]

Answer:

mass \: of \: CO _{2}  = (12 + (16 \times 2)) = 44 \: g \\ mass \: of \: oxygen \: in \: CO _{2} = (16 \times 2) = 32 \\ \% \: of \: oxygen =  \frac{32}{44}  \times 100\% \\  = 72.7\%

4 0
3 years ago
You wish to set up an electrochemical cell that has a copper anode and an
professor190 [17]
I think cathode should be silver or gold
you can use silver nitrate solution or mercury nitrate solution
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3 years ago
A chef finds a sealed container consisting of an ingredient that goes into his restaurant’s secret sauce. The ingredient’s molec
ozzi

The ingredient's molecules would be more free and move faster, then the phase would change to liquid from solid.

<u>Explanation</u>:

  • This task seeks to examine the knowledge of the kinetic phase and characteristics of matters.
  • Here we see the chef described that the ingredient's molecules are moving in place – solid.
  • On the advent of causing the ingredient to change phase by transferring energy into it – the ingredient's molecules would be more free and move faster, then the phase would change to liquid from solid.

6 0
3 years ago
What is the hybridization around the central atom in co2?
bixtya [17]

Answer:

The carbon atom in CO2 has two double bonds, one with each atom of oxygen. Therefore, the carbon's hybridization is sp. Determine the hybridization for the other atoms in the molecule. Each oxygen atom in CO2 has a single double bond with the carbon.

8 0
4 years ago
A ballon is filled with 35 L of air at 2.0 atm. If the pressure is increase to 3.5 atm, what is the new volume?
Strike441 [17]

Answer:

20 L  

Step-by-step explanation:

Since temperature is constant, we can use <em>Boyle’s Law</em>.

p₁V₁ = p₂V₂    Divide each side by p₂

 V₂ = V₁ × p₁/p₂

=====

<em>Data: </em>

p₁ = 2.0 atm; V₁ = 35 L

p₂ = 3.5 atm; V₂ = ?

=====

<em>Calculations: </em>

V₂ = 35 × 2.0/3.5

V₂ = 20 L

4 0
3 years ago
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