A substance that has both acidic and basic properties is said to be an amphoteric substance.
The oxides of tin are amphoteric in nature as SnO, with acid it behaves like a base and with a base like an acid.
Oh, dude, HCO3- is a bicarbonate ion, which can act as both an acid and a base depending on the context. It can accept a proton and act as a base, or it can donate a proton and act as an acid. So, like, it's a bit of a flip-flopper in the world of chemistry.
The strongest acid and base both have the ability to fully donate or accept a proton, respectively. A strong acid completely ionizes in water to donate protons, while a strong base fully dissociates to accept protons. Both are highly reactive and can cause significant chemical reactions.
Acid or Base?According to the Arrhenius Acid-Base theory, the answer is yes and no. If you rearrange the formula to look like HOH, you can see that it contains a hydrogen (indicating an acid), but also contains a hydroxide OH- (indicating a base). This makes sense because water is dead center on the pH scale, right between the acidic side and the basic side.Since we cannot tell by just "looking" at it to determine if its an acid or base, it has to be determined by how it reacts with other acids and bases.This brings us to the Brønsted-Lowry acid-base theory, which tells us that acids are proton (H+ = H3O+) donors and bases are proton acceptors.Generally, water will act as an acid (proton donor) when it reacts with a substance that is less acidic than the water. Conversely, water will act as a base when it reacts with a substance that is more acidic than water.ExamplesHCl + H2O → H3O+ + Cl- Hydrochloric acid is a strong acid and will ionize completely in water. It is more acidic than water, so the water acts as a base and accepts a proton. Note that the hydronium ion (H3O+) can also be written as a proton (H+).NaOH + HOH → Na+ + OH-Sodium hydroxide is a strong base and will ionize completely in water. It is less acidic than water, so the water acts as an acid and donates a proton to form a hydroxide.Water is naturally neutral. Other things added to water may change it towards an acid or a base. Think of acid rain, or a poison water hole in the desert- acid and base.
An amphoteric molecule can, under the right conditions, release either a free hydrogen ion (H+) or a free hydroxide ion (OH-). Water is made out of a hydrogen ion and a hydroxide ion, so you can create reactions that go either way. Hence, under the appropriate conditions water acts like an acid; while under other conditions, it acts as a base. Water acts as an acid, releasing H+ ions, when it reacts with a base stronger than itself. H-OH + NH3 ---> NH4+ + OH- Water acts as a base, releasing OH- ions, when it reacts with an acid stronger than itself. H-OH + HCl ---> H3O+ + Cl-
Am amphoteric substance can react as a base but also as an acid.
The oxides of tin are amphoteric in nature as SnO, with acid it behaves like a base and with a base like an acid.
Like any other amino acid, tryptophan possesses both acidic and basic characteristics, referred to as amphoteric substances. It acts as an acid at pH below 5.89 and as a base at pH above 5.89. 5.89 here is the isoelectric point of tryptophan, a pH value where its overall charge is zero and wherein it neither acts as an acid, nor as a base.
Oh, dude, HCO3- is a bicarbonate ion, which can act as both an acid and a base depending on the context. It can accept a proton and act as a base, or it can donate a proton and act as an acid. So, like, it's a bit of a flip-flopper in the world of chemistry.
Ascorbic acid acts like an acid because it is one.
The strongest acid and base both have the ability to fully donate or accept a proton, respectively. A strong acid completely ionizes in water to donate protons, while a strong base fully dissociates to accept protons. Both are highly reactive and can cause significant chemical reactions.
No, both Coke and Pepsi are also acids. You need a base, like baking soda to neutralize an acid.
Acid or Base?According to the Arrhenius Acid-Base theory, the answer is yes and no. If you rearrange the formula to look like HOH, you can see that it contains a hydrogen (indicating an acid), but also contains a hydroxide OH- (indicating a base). This makes sense because water is dead center on the pH scale, right between the acidic side and the basic side.Since we cannot tell by just "looking" at it to determine if its an acid or base, it has to be determined by how it reacts with other acids and bases.This brings us to the Brønsted-Lowry acid-base theory, which tells us that acids are proton (H+ = H3O+) donors and bases are proton acceptors.Generally, water will act as an acid (proton donor) when it reacts with a substance that is less acidic than the water. Conversely, water will act as a base when it reacts with a substance that is more acidic than water.ExamplesHCl + H2O → H3O+ + Cl- Hydrochloric acid is a strong acid and will ionize completely in water. It is more acidic than water, so the water acts as a base and accepts a proton. Note that the hydronium ion (H3O+) can also be written as a proton (H+).NaOH + HOH → Na+ + OH-Sodium hydroxide is a strong base and will ionize completely in water. It is less acidic than water, so the water acts as an acid and donates a proton to form a hydroxide.Water is naturally neutral. Other things added to water may change it towards an acid or a base. Think of acid rain, or a poison water hole in the desert- acid and base.
An amphoteric molecule can, under the right conditions, release either a free hydrogen ion (H+) or a free hydroxide ion (OH-). Water is made out of a hydrogen ion and a hydroxide ion, so you can create reactions that go either way. Hence, under the appropriate conditions water acts like an acid; while under other conditions, it acts as a base. Water acts as an acid, releasing H+ ions, when it reacts with a base stronger than itself. H-OH + NH3 ---> NH4+ + OH- Water acts as a base, releasing OH- ions, when it reacts with an acid stronger than itself. H-OH + HCl ---> H3O+ + Cl-
it is a base because it tastes bitter. now if it was an acid it would taste sour and not bitter like a base.
To make an acid or a base neutral, you can add a substance called a neutralizer. For acids, you can add a base (like sodium hydroxide), and for bases, you can add an acid (like hydrochloric acid). The neutralizer will react with the acid or base to form water and a salt, resulting in a neutral pH.
lime juice is an acid, not a base