Which of the following characteristics is not a property of an acid? Has a sour taste Accepts an H+ ion in reaction May cause damage to buildings, statues, and rivers Increases the concentration of hydronium ions in an aqueous solution
Answers
Answer : Option B) Accepts an H+ ion in reaction
Explanation : Acid is a lewis acid which forms a bond by accepting a pair of electrons. Acids, when dissolved increase the concentration of hydronium ion in the solution. So, the statement which is Acid accepts H+ ion is irrelevant here, as base accepts the H+ ion in a reaction.
Answer : The incorrect option is, Accepts an H⁺ ion in reaction.
Explanation :
Acid : It is a type of species which contains hydrogen ion.
Properties of an acid :
The taste of an acid is sour.
An acid does not feel slippery.
Acid reacts with the active metal to form a gas and a salt.
It change the color of litmus paper to red or pink.
It conduct electricity.
It react with carbonates to give salt.
It react with a metal to give compound and hydrogen gas.
Base : It is a type of species which contains hydroxide ion.
Properties of an base :
The taste of base is bitter.
The base feels slippery.
It does not react with the active metal.
It change the color of litmus paper to blue.
It conduct electricity.
As per question, all options are the properties of an acid while the statement accepts an H⁺ ion in reaction is in the property of an acid because it donates hydrogen ion in the solution.
Hence, the incorrect option is, Accepts an H⁺ ion in reaction.
Related Questions
Is yogurt alkaline, neutral or acidic?
Chapter 2.4.1. The ______ energy lost by the inward movement of nickel-iron within a differentiating molten planetary body would be converted first into _______ energy and then into ______ energy. a. momentum, thermal, gravitational b. gravitational, kinetic, thermal c. thermal, momentum, kinetic d. kinetic, thermal, gravitational
Which celestial object is found in the Kuiper Belt?
Heat energy is always released during what type of process?
(3) Two electrons are transferred.
(4) Four electrons are transferred.
Answers
Answer:The correct answer is option (2).
Explanation:
A covalent bond is defined as sharing of the electrons between two atoms with less or zero difference in their electronegativites.
A multiple covalent bonds are those bond where more than one bond is present. Like double or triple bonds.
In double covalent bonds there are 4 electrons are shared.
in triple covalent bonds there are 6 electrons are shared.
Single covalent bond is formed by sharing of two electrons while multiple covalent bond is formed when 4 electrons are shared, thus the correct option is 2.
Covalent bond is defined as a type of bond which is formed by the mutual sharing of electrons to form electron pairs between the two atoms.These electron pairs are called as bonding pairs or shared pair of electrons.
Due to the sharing of valence electrons , the atoms are able to achieve a stable electronic configuration . Covalent bonding involves many types of interactions like σ bonding,π bonding ,metal-to-metal bonding ,etc.
Single covalent bond is formed when 2 electrons are shared while multiple covalent bond is formed when 4 electrons are shared, thus the correct option is 2.
Learn more about covalent bond,here:
#SPJ6
when the aim is to show electron distributions in shells
Answers
An orbital notation is more appropriate if you want to show how the electrons of an atom are distributed in each subshell. This is because there are some atoms that have special electronic configurations that aren't obvious in just written configurations.
Answer:
d
Explanation:
on edg 2020
Answers
Answer: Therefore, the molar mass of the unknown substance is 68.4 g/mol.
Explanation: We can use the freezing point depression equation to solve for the molar mass of the unknown substance:
ΔT = Kf × m
where ΔT is the change in freezing point, Kf is the freezing point depression constant of the solvent (naphthalene), and m is the molality of the solution.
First, we need to calculate the molality of the solution:
molality = moles of solute / mass of solvent (in kg)
We don't know the number of moles of the unknown substance, but we can assume that the naphthalene does not contribute significantly to the total mass of the solution (since its mass is much smaller than the mass of the unknown substance). Therefore, we can use the entire mass of the solution (1000g + 12.3g = 1012.3g) as the mass of solvent.
mass of solute = 1000g
mass of solvent = 12.3g
mass of solution = 1012.3g
molality = (1000g / molar mass) / (12.3g / 1000g) = 81.3 / molar mass
Next, we need to calculate the change in freezing point:
ΔT = 1.2∘C
Finally, we can use the freezing point depression constant of naphthalene to solve for the molar mass of the unknown substance:
Kf for naphthalene = 6.8∘C/m
ΔT = Kf × m
1.2 = 6.8 × (81.3 / molar mass)
molar mass = 68.4 g/mol
Therefore, the molar mass of the unknown substance is 68.4 g/mol.
Answers
Answer:
It means the waves collides and constructive interference occurred.
Explanation:
If the two waves coming from the opposite direction collide with each other, there are two way of their interference.
- Constructive interference: An interference which results in the increase in energy. And it is when crust of a wave comes on the crust of second wave.
- Destructive interference: An interference which results in decrease in energy of the resulting wave and colliding waves cancel the result of each other.
Hence in experiment there will be constructive interference.
Answer:
C.
Explanation:
I took the test!
1- 5 grams O2 / 1 gram C3H8
2- 5 moles O2 / 1 mole C3H8
3- 10 grams O2 / 11 grams C3H8
4- 10 moles O2 / 11 moles C3H8
Answers
Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, 5 moles oxygen / 1 mole propane. The correct option is option C among all the given options.
What is mole?
The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity or amount of substance. We know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number.
The balanced equation for the given chemical reaction can be given as
CH
+ 5O
3CO
+ 4H
O
Stoichiometry represents the number of number of moles of reactant and products. The mole ratio between oxygen and propane is 5:1. the correct option isoption 2.
Therefore, 5 moles oxygen / 1 mole propane. The correct option is option C among all the given options.
To know more about mole, here:
#SPJ3
Answers
An Arrhenius acid is a substance that dissociates in water to form hydrogen ions or protons.
For example, hydrochloric acid dissociate in aqueous solution to form hydrogen ions (H⁺) and chloride anion (Cl⁻):
HCl(aq) → H⁺(aq) + Cl⁻(aq).
An Arrhenius base is a substance that dissociates in water to form hydroxide ions (OH⁻).
For example lithium hydroxide is an Arrhenius base:
LiOH(aq) → Li⁺(aq) + OH⁻(aq).
Answer:
more H+ ions
Explanation: