Chemistry, 24.07.2020 21:01 swelch2010

Identitfy the types of reaction: C2H5OH + Na = C2H5ONa + H2 //
AgCl + HNO3 = AgNO3 + HCl // N2 + H2 = NH3 //
MgCO3 = MgO + CO2 //
N2 + H2 = NH3

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Answer from: naruto63

C2H5OH + Na = C2H5ONa + H2 - Single replacement reaction

AgCl + HNO3 = AgNO3 + HC - Double replacement reaction

N2 + H2 = NH3 - Combination reaction

MgCO3 = MgO + CO2 - Decomposition reaction

Explanation:

Single replacement reaction - The type of reaction in which one strong ion replaces the weak ion from the solution.

For example: C2H5OH + Na = C2H5ONa + H2

Double replacement reaction - The reaction in which two compounds in a solution reacts by interchanging their ions and forms a new product.

For example: AgCl + HNO3 = AgNO3 + HCl

Combination reaction - The type of reaction in which two or more compounds combine together to form a single compound.

For example: N2 + H2 = NH3

Decomposition reaction - The type of reaction in which only one compounds break down into two or more new compounds.

For example: MgCO3 = MgO + CO2

Hence, the correct answer is:

C2H5OH + Na = C2H5ONa + H2 - Single replacement reaction

AgCl + HNO3 = AgNO3 + HC - Double replacement reaction

N2 + H2 = NH3 - Combination reaction

MgCO3 = MgO + CO2 - Decomposition reaction

Answer from: Quest

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

hope this !

Answer from: Quest

a solution is always transparent, light passes through with no scattering from solute particles which are molecule in size. the solution is homogeneous and does not settle out. a colloid is intermediate between asolution and a suspension. while asuspension will separate out a colloid will not.

What’s is a suspension, and how is it different from a solution?

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Identitfy the types of reaction: C2H5OH + Na = C2H5ONa + H2 //
AgCl + HNO3 = AgNO3 + HCl // N...

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