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masha68 [24]
3 years ago
11

All of the following methods would increase the solubility of a solid solute, except for

Chemistry
2 answers:
ikadub [295]3 years ago
5 0
B: stiring the particles more vigorously
Goryan [66]3 years ago
3 0
C-Turning the heat down Hope this helps! :)
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A 2.04 g lead weight, initially at 10.8 oC, is submerged in 7.74 g of water at 52.2 oC in an insulated container. clead = 0.128
QveST [7]

Answer:

Explanation:

Hello, in this case, the lead is catching heat and the water losing it, that's why the heat relation ship is (D is for Δ):

DH_{lead}=-DH_{water}

Now, by stating the heat capacity definition:

m_{Pb}C_{Pb}*(T_{eq}-T_{lead}=-m_{H_2O}C_{H_2O}*(T_{eq}-T_{H_2O})\\

Solving for the equilibrium temperature:

T_{eq}=\frac{m_{Pb}C_{Pb}T_{Pb}+m_{H_2O}C_{H_2O}T_{H_2O}}{m_{Pb}C_{Pb}+m_{H_2O}C_{H_2O}} \\\\T_{eq}=\frac{2.04g*0.128J/(g^oC)*10.8^oC+7.74g*4.18J/(g^oC)*52.2^oC}{2.04g*0.128J/(g^oC)+7.74g*4.18J/(g^oC)} \\\\T_{eq}=51.87^oC

Which is very close to the water's temperature since the lead's both mass and head capacity are lower than those for water.

Best regards.

5 0
3 years ago
Which characteristic best explains the difference in melting behavior of covalent substances and ionic substances?
hram777 [196]


The correct answer is B.  Ionic compounds have stronger atomic bonds.

With ionic compounds, there is a complete transfer of electrons from one atom to another thus creating stronger electrostatic forces between the two atoms.  In regard to covalent compounds, electrons are not transferred but shared between two atoms and the atoms are attracted to each other by weaker electrostatic forces.

 Due to this, it is easier to break covalent bonds than ionic. Thus melting (and boiling) point of ionic compounds is higher than that of covalent compounds.



7 0
3 years ago
Read 2 more answers
Balance the equation
kap26 [50]

Answer: Balanced chemical equation will be :

5SiO_2+2CaC_2\rightarrow 5Si+2CaO+4CO_2

Explanation:

SiO_2+CaC_2\rightarrow Si+CaO+CO_2(Unbalanced)

A  balanced chemical reaction follows the Law of Conservation of Mass. which states in a chemical reaction mass can neither be created nor be destroyed. In other words total mass of the products is equal to the total mass of reactants.

Balanced chemical equation will be :

5SiO_2+2CaC_2\rightarrow 5Si+2CaO+4CO_2

3 0
4 years ago
What happens to iron when iron oxide becomes elemental iron?
Ilya [14]
The appropriate response is Reduction. It is a chemical reaction that includes the picking up of electrons. It alludes to the side that acknowledges electrons. At the point when iron responds with oxygen, it frames a concoction called rust. In that case, the iron is oxidized and the oxygen is lessened.
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4 years ago
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How to make bottled soda taste like fountain?
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I believe fountain soda is made with a different type of high fructose corn syrup. I'm not entirely sure if you can make bottled soda taste the same as fountain.
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