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Why is the rate of reaction increased when magnesium is powdered rather than in solid form?
Wiki User
∙ 14y ago
Because more surface area is exposed.
Wiki User
∙ 14y ago
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What does fullers earth look like?
It looks rather like buff colored powdered chalk.
How common is magnesium on Earth?
On Earth, Magnesium is found in more than 60 minerals and is rather common. It can be found in appliances, foods, drinks, etc.
What is the difference between mica and quartz?
Biotite mica contains iron and/or magnesium, but muscovite mica does not.
Why is a catalyst written above the arrow in a chemical equation rather than with the reactants?
The enzyme is written above the arrow of the chemical equation because it is involved in the reaction without being changed by it or used up in the reaction. It is not a reactant or a product.
Is there magnesium or aluminum in tagamet?
No. Tagamet is the commercial name of cimetidine which is drug that reduces the production of stomach acid. Mg and Al based medications neutralise stomach acid rather than affecting production.
How is powdered metal used in food?
i am not answering i am asking rather
What are the advantages of using powdered substances rather than using solid substances?
The advantage is that powdered substances have a much larger surface area than solids. This increased area allows more contact with reactants The speed at which chemicals will react is related to their ability to make contact with reactants. A block of iron will oxidise slowly, as the oxygen can not reach the iron except at the surface. However iron filings will oxidise much quicker because of the increased area available.
What type of reaction is NaCI?
NaCl is not a reaction, but rather a compound.
What does fullers earth look like?
It looks rather like buff colored powdered chalk.
What is the chemical formula for magnesium dioxide?
The oxidation of magnesium is a process, and as such has a chemical equation rather than a formula: 2 Mg + O2 -> 2 MgO. MgO is the chemical formula for the oxide of magnesium.
How common is magnesium on Earth?
On Earth, Magnesium is found in more than 60 minerals and is rather common. It can be found in appliances, foods, drinks, etc.
Why is benzene undergoes electrophilic reaction rather then nucleophilic reaction?
jaom maran
Is burning a magnesium ribbon a physical change?
No. Burning magnesium, or burning anything for that matter, is a chemical change. The magnesium reacts with oxygen to form magnesium oxide, and to some degree reacts with nitrogen to form magnesium nitride.
Has modernization put an end to discrimination?
No. Rather it has increased it.
Why magnesium is used in grignard reagent?
The point of a Grignard reaction is to form a new carbon-carbon bond. To do this, you need a reagent with a relatively negative carbon. This is unusual, since carbon has a fairly low electronegativity - 2.5 - and thus generally has a partial positive charge, rather than a negative one. However, magnesium has an even lower electronegativity, namely, 1.2. The large difference in electronegativity between carbon and magnesium, 1.3, creates a very polar covalent bond between the two when they are bonded to each other. Thus, magnesium is necessary in the Grignard reagent because it creates the partial negative charge on the carbon to which it is bound, allowing the reaction to happen.
Why might magnesium metal rather than copper metal be used to study the effect of concentration of hydrochloric acid on rates of reactions?
Magnesium powder has a larger surface area, depending on quantity it may react too quickly, whereas with a ribbon the temperature change is slower and therefore easier to record and monitor the rate of reaction.
What is the meaning of the word catalyst?
A catalyst speeds up a reaction by lowering the activation energy of the reaction. It is not consumed by the reaction, but rather it leaves the reaction unchanged.
