What do oxidation reactions produce during the electrolysis of water?
Answer : Oxidation reaction produces oxygen and water molecule during electrolysis of water.
Electrolysis : It is a type of process in which the chemical decomposition produced by passing an electric current through the solution that containing the ions.
Electrolysis of water : It is basically the decomposition of water into oxygen and hydrogen gas through a process of electric current.
Oxidation reaction is defined as the reaction in which a substance looses its electron to attain stability.
The chemical reactions during electrolysis of water are:
Oxidation reaction occurs at anode.
Hence, oxidation reaction produces oxygen and water molecule during electrolysis of water.
Which compounds have the empirical formula CH2O
Chemical Compounds, hope this helps.
A chemistry student is given 600. mL of a clear aqueous solution at 37.° C. He is told an unknown amount of a certain compound X is dissolved in the solution. The student allows the solution to cool to 21.° C. At that point, the student sees that a precipitate has formed. He pours off the remaining liquid solution, throws away the precipitate, and evaporates the water from the remaining liquid solution under vacuum. More precipitate forms. The student washes, dries and weighs the additional precipitate. It weighs 0.084 kg.Using only the information from above, can you calculate the solubility of X at 21.° C?If yes, calculate it. Be sure your answer has a unit symbol and the right number of significant figures.
The relevant fact here is:
That means that the precipitate that was thrown away, before evaporating the remaining liquid solution under vacuum, does not count; you must only use the amount of solute that was dissolved after cooling the solution to 21°C.
Then, the amount of solute dissolved in the 600 ml solution at 21°C is the weighed precipitate: 0.084 kg = 84 g.
With that, the solubility can be calculated from the followiing proportion:
⇒ y = 84. g solute × 100 ml solution / 600 ml solution = 14. g.
The correct number of significant figures is 2, since the mass 0.084 kg contains two significant figures.
The answer is 14. g of solute per 100 ml of solution.
How do minerals affect igneous rock formations?
What is the most susceptible to damage from ionizing radiation. sorft tissue, paper, wood, lead
Ammonia will decompose into nitrogen and hydrogen at high temperature. An industrial chemist studying this reaction fills a 500. mL flask with 2.3 atm of ammonia gas at 32. °C. He then raises the temperature, and when the mixture has come to equilibrium measures the partial pressure of hydrogen gas to be 0.69 atm. Calculate the pressure equilibrium constant for the decomposition of ammonia at the final temperature of the mixture. Round your answer to 2 significant digits.
Chemical reaction equation for the give decomposition of is as follows:.
And, initially only is present.
The given data is as follows.
= 2.3 atm at equilibrium
= 0.69 atm
= 0.23 aatm
So, = 2.3 - 2(0.23)
= 1.84 atm
Now, expression for will be as follows.
Thus, we can conclude that the pressure equilibrium constant for the decomposition of ammonia at the final temperature of the mixture is .
The movement of one or more from one reactant to another is called
Answer: Redox Reaction
Redox reaction is the key chemical events in an oxidation-reduction also called Redox. It is the net movement of electrons from one reactants to another
Elements that have properties in common are sometimes classified as a "chemical family". Select the element(s) that are in the same chemical family as gold and silver.
Answer is: copper (Cu).
Gold (Au) and silver (Ag) are noble metals and fall into the transitional metal family on the periodic table in group number 11.
Group 11 is also known as the coinage metals, due to their former usage.
Copper, silver and gold all occur naturally in elemental form.
Copper has atomic number 29, it has 29 protons and 29 electrons.
Electron configuration of copper atom: ₂₉Cu [Ar] 3d¹⁰ 4s¹.
Copper (Cu) is higher in activity series than silver and gold, so copper lose electron and silver gain electrons.
If 3.0Ã—105 j of heat are added to the ice, what is the final temperature of the system?