The correct answer is Hydroelectric (D)
Substance A is an acid.
Substance B is a group of hydronium ions.
Explanation:
From the description above, we can deduce that substance A is an acid whereas substance B is a group of hydroxonium ions.
An acid can be defined as a substance that produces hydrogen ions in solution.
Acids interacts with water to produce excess hydroxonium ions, H₃O⁺ in an aqueous solution.
The hydroxonium ions results from the chemical bonding between oxygen of water molecules and protons released by the ionization of the acid:
HCl + H₂O → H₃O⁺ + Cl⁻
Learn more:
Acid brainly.com/question/5121777
#learnwithBrainly
Answer:
The answer is YES
The value is ![S = 110 \ g/L](https://tex.z-dn.net/?f=S%20%3D%20110%20%5C%20%20g%2FL)
Explanation:
From the question we are told that
The volume of the sample taken is v = 13.0 mL
The temperature is ![T = 16^oC](https://tex.z-dn.net/?f=T%20%3D%20%2016%5EoC)
The mass of the sample is ![m = 0.143 g](https://tex.z-dn.net/?f=m%20%20%3D%20%200.143%20g)
Generally the solubility of the substance X is mathematically represented as
![S = \frac{m}{V}](https://tex.z-dn.net/?f=S%20%3D%20%20%5Cfrac%7Bm%7D%7BV%7D)
=> ![S = \frac{0.143 }{13.0}](https://tex.z-dn.net/?f=S%20%3D%20%20%5Cfrac%7B0.143%20%20%7D%7B13.0%7D)
=> ![S = 0.011 \ g/mL](https://tex.z-dn.net/?f=S%20%3D%200.011%20%5C%20%20g%2FmL)
=> ![S = 110 \ g/L](https://tex.z-dn.net/?f=S%20%3D%20110%20%5C%20%20g%2FL)
Answer:
STP conditions, which are defined as a pressure of 100 kPa and a temperature of 273.15 K, should immediately get you thinking about molar volume of a gas.
More specifically, about the fact that 1 mole of any ideal gas occupies exactly 22.7 L at STP.
This means that all you really need to figure out is the number of moles of oxygen that took part in the reaction. If you know how many moles of oxygen are needed, you can use the molar volume of a gas at STP to calculate the volume of oxygen.
Use water's molar mass to determine how many moles of water would the reaction produce
Answer:
The size of electric current must 104.5 Ampere.
Explanation:
Moles of electrons = 650 mmol = ![650\times 0.001 mol](https://tex.z-dn.net/?f=650%5Ctimes%200.001%20mol)
mmol = 0.001 mol
1 mol =
atoms/ions
Number of electrons = N
N = ![650\times 0.001\times 6.022\times 10^{23}=3.9143\times 10^{23}](https://tex.z-dn.net/?f=650%5Ctimes%200.001%5Ctimes%206.022%5Ctimes%2010%5E%7B23%7D%3D3.9143%5Ctimes%2010%5E%7B23%7D)
Charge on an electron = ![1.602\times 10^{-19} C](https://tex.z-dn.net/?f=1.602%5Ctimes%2010%5E%7B-19%7D%20C)
Total charge on N electrons = Q
![Q=3.9143\times 10^{23}\times 1.602\times 10^{-19} C=62,707.086 C](https://tex.z-dn.net/?f=Q%3D3.9143%5Ctimes%2010%5E%7B23%7D%5Ctimes%201.602%5Ctimes%2010%5E%7B-19%7D%20C%3D62%2C707.086%20C)
Duration of time = T = 10 min = 10 × 60 s
1 minute = 60 seconds
![Current(I)=\frac{Charge(Q)}{Time(T)}](https://tex.z-dn.net/?f=Current%28I%29%3D%5Cfrac%7BCharge%28Q%29%7D%7BTime%28T%29%7D)
![I=\frac{62,707.086 C}{10\times 60 s}=104.5 A](https://tex.z-dn.net/?f=I%3D%5Cfrac%7B62%2C707.086%20C%7D%7B10%5Ctimes%2060%20s%7D%3D104.5%20A)
The size of electric current must 104.5 Ampere.