Which statement about the self-ionization of water is correct? a. Two water molecules interact to form a water molecule and a hydroxide ion. b. Two water molecules interact to form a hydronium ion and a hydroxide ion. c. Two water molecules interact to form two hydronium ions. d. Two water molecules interact to form two hydroxide ions.
Answers
Answer: The correct answer is Option b.
Explanation:
Water is the compound which is formed by the covalent bonding of hydrogen and oxygen atoms. The chemical formula for this compound is
Self-ionization of water is defined as the process in which 2 water molecules react together to produce hydroxide ion and hydronium ion.
The equation for the self ionization of water molecule follows:
By Stoichiometry of the reaction:
2 moles of water molecules react together to produce 1 mole of hydronium ion and 1 mole of hydroxide ion.
Hence, the correct answer is Option b.
Related Questions
What can be said about the mass of a system when a change of state occurs? A) The mass of the system always increases during a change of state. B) The mass of the system always decreases during a change of state. C) The mass of the system remains constant during a change of state. D) The mass of the system varies depending on the type of change of state.
Does a reaction occur?Pb + Cu(CIO), → Pb(ClO3)2 + Cu
Compared to a 26-gram sample of NaCl(s) at STP, a 52-gram sample of NaCl(s) at STP has(1) a different density(2) a different gram-formula mass(3) the same chemical properties(4) the same volume
How many atoms are there in 1.3 x 10^22 molecules of N(O)2
FALSE
Answers
Answer: False
False
Explanation:
False
Answers
Taking into account the reaction stoichiometry, 51.84 grams of HCl is required to react completely with 12.8 g of aluminum to produce aluminum chloride and hydrogen gas.
Reaction stoichiometry
In first place, the balanced reaction is:
2 Al + 6 HCl → 2 AlCl₃ + 3 H₂
By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:
- Al: 2 moles
- HCl: 6 moles
- AlCl₃: 2 moles
- H₂: 3 moles
The molar mass of the compounds is:
- Al: 27 g/mole
- HCl: 36.45 g/mole
- AlCl₃: 133.35 g/mole
- H₂: 2 g/mole
Then, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:
- Al: 2 moles ×27 g/mole= 54 grams
- HCl: 6 moles ×36.45 g/mole= 218.7 grams
- AlCl₃: 2 moles ×133.35 g/mole= 266.7 grams
- H₂: 3 moles ×2 g/mole= 6 grams
Mass of HCl required
The following rule of three can be applied: If by reaction stoichiometry 54 grams of Al react with 218.7 grams of HCl, 12.8 grams of Al react with how much mass of HCl?
mass of HCl= 51.84 grams
Finally, 51.84 grams of HCl is required to react completely with 12.8 g of aluminum to produce aluminum chloride and hydrogen gas.
Learn more about the reaction stoichiometry:
next, take 12.8g/mr of aluminium
this will give u the mols of aluminium
next, take the ratio of HCL and Al, compare and find the mols of HCL.
take the mols of HCL/mr of HCL to give u mass
doneee
Answers
Chemical changes are a result of chemical reactions. All chemical reactions involve a change in substances and a change in energy. Neither matter or energy is created or destroyed in a chemical reaction---only changed. There are so many chemical reactions that it is helpful to classify them into 4 general types which include the following:SYNTHESIS REACTION
In a synthesis reaction two or more simple substances combine to form a more complex substance. Two or more reactants yielding one product is another way to identify a synthesis reaction.
For example, simple hydrogen gas combined with simple oxygen gas can produce a more complex substance-----water!
The chemical equation for this synthesis reaction looks like:
reactant + reactant -------> product
To visualize a synthesis reaction look at the following cartoo
In the cartoon, the skinny bird (reactant) and the worm (reactant) combine to make one product, a fat bird.
DECOMPOSITION REACTION
In a decomposition reaction a more complex substance breaks down into its more simple parts. One reactant yields 2 or more products. Basically, synthesis and decomposition reactions are opposites.
For example, water can be broken down into hydrogen gas and oxygen gas. The chemical equation for this decomposition reaction looks like:
reactant -------> product + product
To visualize a decomposition reaction look at the following cartoon:In this cartoon the egg (the reactant), which contained the turtle at one time, now has opened and the turtle (product) and egg shell (product) are now two separate substances.SINGLE REPLACEMENT REACTION
In a single replacement reaction a single uncombined element replaces another in a compound. Two reactants yield two products. For example when zinc combines with hydrochloric acid, the zinc replaces hydrogen. The chemical equation for this single replacement reaction looks like:
reactant + reactant ---------> product + product
To visualize a single replacement reaction look at the following cartoon:
Notice, the guy in the orange shirt steals the date of the other guy. So, a part of one of the reactants trades places and is in a different place among the products.DOUBLE REPLACEMENT REACTION
In a double replacement reaction parts of two compounds switch places to form two new compounds. Two reactants yield two products. For example when silver nitrate combines with sodium chloride, two new compounds--silver chloride and sodium nitrate are formed because the sodium and silver switched places. The chemical equation for this double replacement reaction looks like:
reactant + reactant ---------> product + product
To visualize a double replacement reaction look at the following cartoon:
ENERGY OF CHEMICAL REACTIONSChemical reactions always involve a change in energy. Energy is neither created or destroyed. Energy is absorbed or released in chemical reactions. Chemical reactions can be described as endothermic or exothermic reactions.Endothermic Reactions
ombustion (burning) is an exothermic chemical reaction.The next two pa
Answer:
a
Explanation:
Answers
The mass of the solution of sugar and water is 120 grams.
What is mass?
Mass is the quantity of matter of a physical body.
The mass of the sugar is given is 20g
The mass of the water is 100 g.
100 + 20 = 120 gram
Thus, the mass of the solution of sugar and water is 120 grams.
Learn more about mass
#SPJ2
I hope this helps. Let me know in the comments if anything is unclear.
Answers
Answer:
Negatively charged ion.
Explanation:
Example:
Oxygen is an element containing negatively charged ions. Its valence number is minus 2.
Hope this helps ;) ❤❤❤
Answers
The total number of moles of CO₂ added to the tank before it is used for paintball is 7.73 moles.
What is a mole ?
A mole of a substance is that containing 6.022 * 10^23 molecules of that substance
A 340 gm sample of carbon dioxide
Molecular weight = 44
Moles added to the tank = mass/ molecular meight
Moles added to the tank = 340 /44
= 7.73 moles
The total number of moles of CO₂ added to the tank before it is used for paintball is 7.73 moles.
To know more about mole
#SPJ2
1000 cm³ = 1 L
1 cm³ = 1 / 1000 L
508 cm³ = (1 / 1000) * 508 L = 0.5080 L
So, 508 cm³ = 0.5080 L
Now,
We know,
22.4 L = 1 mole
1 L = 1 / 22.4 mole
0.5080 L = (1 / 22.4) * 0.5080L = 0.0227 moles
So, 0.0277 moles moles of