Answer:D the pressure increases
Explanation:
Answer : The amount of heat absorbed are, 258485.5 J
Solution :
Formula used :
![Q=m\times c\times \Delta T=m\times c\times (T_{final}-T_{initial})](https://tex.z-dn.net/?f=Q%3Dm%5Ctimes%20c%5Ctimes%20%5CDelta%20T%3Dm%5Ctimes%20c%5Ctimes%20%28T_%7Bfinal%7D-T_%7Binitial%7D%29)
where,
Q = heat gained = ?
m = mass of water = 650 g
c = specific heat of water =
= final temperature = ![100^oC](https://tex.z-dn.net/?f=100%5EoC)
= initial temperature = ![5^oC](https://tex.z-dn.net/?f=5%5EoC)
Now put all the given values in the above formula, we get the final temperature of copper.
![Q=650g\times 4.186J/g^oC\times (100-5)^oC](https://tex.z-dn.net/?f=Q%3D650g%5Ctimes%204.186J%2Fg%5EoC%5Ctimes%20%28100-5%29%5EoC)
![Q=258485.5J](https://tex.z-dn.net/?f=Q%3D258485.5J)
Therefore, the amount of heat absorbed are, 258485.5 J
Answer - without osmosis it won't go from a low concentration to another low concentration. In this case it's water going into a cell which has low concentrations which the osmosis will limit it keeps the cell from exploding ;).
Al 1s²2s²2p⁶3s²3p¹ - 3e⁻ → Al³⁺ 1s²2s²2p⁶
_________
3AgNO₃ + Na₃PO₄ → Ag₃PO₄ + 3NaNO₃
Explanation:
AgNO₃+Na₃(PO₄) → Ag₃(PO₄) + NaNO₃
To balance this chemical equation, we can adopt a simple mathematical approach through which we can establish simple and solvable algebraic equations.
aAgNO₃ + bNa₃PO₄ → cAg₃PO₄ + dNaNO₃
a, b, c and d are the coefficients needed to balance the equation.
Conserving Ag: a = 3c
N: a = d
O: 2a + 4b = 4c + 2d
Na: 3b = d
P: b = c
let a = 1; d = 1
b = ![\frac{1}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B3%7D)
c = ![\frac{1}{3}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B3%7D)
Multiplying through by 3:
a = 3, b = 1, c = 1 and d = 3
3AgNO₃ + Na₃PO₄ → Ag₃PO₄ + 3NaNO₃
Learn more:
Balanced equation
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