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evablogger [386]
2 years ago
14

Coffe is a solution of organic substance in water

Chemistry
1 answer:
MAXImum [283]2 years ago
8 0

Answer:

Verdadero!
no se en que mas quieres que te ayude? o cual realmente quieres que sea la respuesta?

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If 200 grams of water is to be heated from 24.0oC to 100.0oC to make a cup of tea, how much heat must be added?
aksik [14]
According to this formula:

Q = M*C*ΔT 

when we have M ( the mass of water) = 200 g 

and C ( specific heat capacity ) of water = 4.18 J/gC

ΔT (the difference in temperature) = Tf - Ti 
     
                                                          = 100 - 24

                                                          = 76°C

So by substitution:


Q = 200 g * 4.18 J/gC * 76 °C

   = 63536 J 

 ∴ the amount of heat which be added and absorbed to raise the temp from 24°C to 100°C is = 63536 J


3 0
4 years ago
How does hybridization of atomic orbitals allow us to reconcile valence bond theory with vsepr theory?.
S_A_V [24]

Hybridization of atomic orbitals produces orbital shapes and spatial orientations that correlate to those predicted in VSEPR theory.

<h3>What is VSEPR theory ?</h3>

The number of electron pairs surrounding an individual molecule's core atoms can be used to forecast a molecule's shape using the chemical model known as the valence shell electron pair repulsion hypothesis. The two principal creators of the theory, Ronald Gillespie and Ronald Nyholm, gave it the additional moniker Gillespie-Nyholm theory.

  • Hybrid orbital theory explains how these forms are created, while VSEPR theory predicts the shapes of molecules. VSEPR theory's central tenet is that electron pairs—both those in bonds and those that are alone repel one another. "Groups" refers to the electron pairs, both in bonds and lone pairs.

Learn more about VSEPR theory here:

brainly.com/question/14225705

#SPJ4

4 0
1 year ago
If the temperature of one mole of gas increases while its volume decreases, would you expect the gas pressure to increase, decre
tangare [24]

Answer:

Pressure will increase since their is not much room

please give brainliest

Explanation:

8 0
3 years ago
___ V2O5 + ___ CaS ___ CaO + ___ V2S5
den301095 [7]

Answer:

3

Explanation:

5 0
3 years ago
An element that is likely to have this property is; A. bromine B. carbon C. sodium D. tellurium ?
vladimir2022 [97]
The answer is D. Most common semiconducting materials are crystalline solids. A<span>morphous and liquid semiconductors are also known to be.</span>
4 0
4 years ago
Read 2 more answers
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