Answer:
4 moles of HCl will be required to produce 2 moles of H2.
Explanation:
A balanced chemical equation gives the stoichiometric ration of moles of reactants required to produce a certain number of moles of products. The ratio of moles of reactants to moles of products is known as the mole ratio and is constant for a given chemical reaction.
In the given balanced equation of reaction shown below:
Zn + 2HCl → ZnCl2 + H2
The mole ratio of HCl and H2 is 2:1. This means that in this reaction between Zinc metal and hydrochoric acid to produc zinc chloride and hydrogen gas, every two moles of hydrochloric acid used in the reaction will result in the production of one mole of hydrogen gas.
Therefore for two moles of H2 to be obtained from the reaction, twice the number of moles of HCl is required.
Moles of HCl required = 2 × 2 moles = 4 moles of HCl.
Answer:
ethyl methyl ether
Explanation:
when naming ethers name the alkyl rings, in this case we have methyl and ethyl( make sure they are in alphabetical order) followed by the word ether, so it becomes ethyl methyl ether
If it produces heat then it would classify as a chemical change. Some other options are if it produces smell. Texure, matter of the material,and if it changes color are all also apart of classifying a chemical change.
The students with ionic bonds have a better understanding of what the model needs to illustrate.
Explanation:
- When ionic compounds dissolve in water, they break apart into the ions that make them up through a process called dissociation.
- When placed in water, the ions are attracted to the water molecules, each of which carries a polar charge.
- If the force between the ions and the water molecules is strong enough to break the bonds between the ions, the compound dissolves.
- The ions dissociate and disperse in solution, each ringed by water molecules to prevent reattachment.
- The ionic solution turns into an electrolyte, meaning it can conduct electricity.
- While covalent compounds dissolve in water they break apart into molecules, but not individual atoms.
- Water is a polar solvent, but covalent compounds are usually nonpolar.
- This means covalent compounds typically don't dissolve in water, instead making a separate layer on the water's surface.
