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About. Transcript. Acids and bases can be described using the Arrhenius model: acids produce H+ ions in aqueous solutions, while bases produce OH- ions. We can identify acidic and basic solutions using their distinct and often contrasting properties, some of which you are likely familiar with!
- 12 min
- Mahesh Shenoy
Apr 3, 2022 · An Arrhenius acid–base reaction occurs when a dissolved (aqueous) acid and a dissolved (aqueous) base are mixed together. The product of such a reaction is usually said to be a salt plus water and the reaction is often called a neutralization reaction: the acid neutralizes the base, and vice versa.
When something is exposed to an acid the "glue" that holds its parts together starts to break apart. If it's a strong acid on your skin it's essentially taking away the stuff that makes your cells want to stay close to one another. It's a violent and dirty way to do that, like cutting with a rusty knife. That's why it burns and scars. 5. Award.
Jul 4, 2022 · Acid–base reactions require both an acid and a base. In Brønsted–Lowry terms, an acid is a substance that can donate a proton (H +), and a base is a substance that can accept a proton. All acid–base reactions contain two acid–base pairs: the reactants and the products.
- Acids
- Bases
- The Simple Chemistry
- Identifying and Measuring Acids and Bases
- Alternative Conceptions
We are familiar with some acids – citrus fruits, tomatoes and vinegar are acidic and mostly taste sour. Because strong acids can damage cells, our stomach needs a special lining to protect it from the hydrochloric acid that helps to digest our food. Acids react with most metals including magnesium to create hydrogen gas and a salt – there are lots ...
A corrosive substance is one that will damage or destroy other substances with which it comes into contact by means of a chemical reaction. Bases feel slippery to touch. This is because they can change the structure of proteins. A strong base can cause severe chemical burns because it starts to damage the proteins in your skin. Basic substances are...
An acid is a substance that produces hydrogen (H+) ions when it is added to water. A hydrogen ionis just the proton and no electron. If we look at the formulas of different acids, we can see that they all contain at least one H (hydrogen) – for example: 1. HCl – hydrochloric acid 2. H2SO4– sulfuric acid 3. HNO3– nitric acid. When we put a molecule ...
A pH meter measures how acidic or basic a solution is. When we test a substance with a pH meter, we get a number from 0–14. This is a pH scale, and it can be used to compare substances. It is important to know that this scale is logarithmic. This means that a decrease in the pH scale of 1 can result in an increase of 10 times the concentration of h...
When talking about acids and bases, the words ‘strong’ and ‘weak’ have a very specific meaning and it’s not necessarily what you would expect. Strong acids dissociate completely in water to produce the maximum number of H+ ions. This means that, for a strong acid like hydrochloric acid (HCl), the molecules ‘split’ to form H+ ions and Cl– ions. Weak...
Hydrogen ions. It's a lot like the first definition we gave, where an acid breaks up and releases/donates a hydrogen ion. This newer definition is a little bit more detailed. Scientists used the new definition to describe more bases, such as ammonia (NH 3 ).
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Factors affecting acid strength (video) | Khan Academy. Google Classroom. Microsoft Teams. About. Transcript. The relative strength of an acid can be predicted based on its chemical structure. In general, an acid is stronger when the H–A bond is more polar.
- 9 min
- Jay
