Answer:
Kindly check explanation section.
Explanation:
Since, the question requires the chemical reaction to be written in lewis for the the processes involved in this particular Question/problem that is to say the neutralization process and the decomposition process. The lewis structure is given in the attached picture.
For the first process; Sodium bicarbonate reacts with HCl to produce the carbonic acid and a salt, known as Sodium chloride.
Na2CO3 + 2HCl ----------> 2NaCl + H2CO3.
The second process shows the decomposition of Carbonic acid into carbon dioxide and water.
Answer:
The answer to your question is Molarity = 0.41
Explanation:
Data
mass of KNO₃ = 76.6 g
volume = 1.84 l
density = 1.05 g/ml
Process
1.- Calculate the molecular mass of KNO₃
molecular mass = 39 + 14 + (16 x 3) = 101 g
2.- Calculate the number of moles
101 g of KNO₃ --------------- 1 mol
76.6 g of KNO₃ ------------ x
x = (76.6 x 1) / 101
x = 0.76 moles
3.- Calculate molarity
Molarity =
Substitution
Molarity =
Result
Molarity = 0.41
Answer:
Sample C is most likely the metal.
Explanation:
The Sample C is the metal, because the properties given in the sample c are all of the metal. As we know that the metals are the lustrous or the shiny elements. They are often good conductor of heat and also electricity. The metals possess high melting point. The density of the metals are heavy for their size. Metals can be easily hammered, and hence are malleable. They can easily be stretched into wires hence are ductile. They remains solid at room temperature but in case of mercury it remains as liquid. Metals are opaque object and cannot be see through it.
