Because they use alkalizers in the chocolate to increase the PH and therefore it's less acidic.
1) Alkali metals are stored in oil to minimise reaction with oxygen or water, it's a physical barrier towards air but the alkali metals still gradually corrode a traces of oxygen and water diffuse through. The reaction of alkali metals with water gets more violent for elements lower in the group e.g. (Li < Na < K < Rb < Cs). Adding them to water will cause an explosion due to the extremely exothermic nature of reaction, and can be rather dangerous and some alkali metals can react violently with just moisture in the air. Most of the alkali metals float on the top of the water, depending on how big the alkali metal is determines the size of the reaction this is because they're less dense that water itself and also during the reaction the alkali metals give of hydrogen gas which is quite flammable. Alkali Metal + Water » Metallic Hydroxide + Hydrogen The francium would be like any other alkali metal, it would be very violent like the other alkali metals.
Yes, alkali metals are more reactive than alkaline-earth metals. All atoms want to have 8 electrons in their outer shells. Alkali metals have to give one electron away, where as alkaline-earth metals need to give two away which is less energetically favorable.
All atoms want to do is make their valence shell full. In alkali metals they have all of their shells completely full except one valence electron. The alkali metals REALLY want to get rid of that electron, so they will react with many elements/compounds to get rid of that electron. In alkaline earth metals they have all of their shells completely full except for two valence electrons. They also want to get rid of those electrons but the alkaline earth metals are not as desperate to do so as the alkali earth metals which make the alkaline much less reactive than the alkali metals.
They are shiny, silver, less malleable than alkali metals and they burn with bright flames. They also make strong bases (Opposite of acid).
A soil is acidic because there are compounds within it which dissolve in water to form an acid. An acid is defined as a substance which readily gives out protons to oter molecules. An alkali is the converse, in that it is a proton acceptor and readily takes on protons. Treating an acidic soil with an alkali would neutralise the soil, and so the soil would become less acidic. If enough alkali is added, the soil will become neutral, and it will become alkaline if even more alkali is added.
If it is an alkali drain cleaner, you can add acidic materials in the drain cleaner such as lemons, If it is an acidic drain (less common) cleaner, you can add alkali materials such as toothpaste, soap
Limestone chips
The opposite of acidic is alkaline. Alkaline substances have a pH level greater than 7, while acidic substances have a pH level less than 7.
You can make lawn soil less acidic by adding lime to the soil. Lime helps to raise the pH level of the soil, making it less acidic. Be sure to conduct a soil test first to determine how much lime you need to apply.
Lime is added to acidic soil to raise the pH level, making the soil less acidic and more neutral. This helps to improve soil structure, increase nutrient availability for plants, and promote healthier root growth.
Sodium bicarbonate is added to water to help regulate the pH levels and make the water less acidic.
From Wikipedia, Adding an alkali produces Dutch process cocoa powder, which is less acidic, darker and more mellow in flavor than what is generally available in most of the world. Regular (nonalkalized) cocoa is acidic, so when added to an alkaline ingredient like baking soda, the two react and leave a byproduct.
Alkali's neutralise acids. For example, toothpaste is an alkali that neutralises acid in the mouth.
Face toner is typically acidic, as it helps to rebalance the skin's pH level and tighten pores. Alkaline toners are less common and often used to neutralize excess acidity in the skin.
It depends on the pH of the dilutant. if the dilution substance is base the acidic solution will become less acidic moving toward neutral pH, the more it is diluted the less acidic it will become. A base solution will remain base or about 7 pH
Alkaline substances are basic, having a pH greater than 7. They are the opposite of acidic substances, which have a pH less than 7.