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VashaNatasha [74]
3 years ago
11

Law of conservation of mass to explain why a chemical equation must be balanced?

Chemistry
2 answers:
SOVA2 [1]3 years ago
7 0
Chemical equations must always balance due to the principles outlined in The Law Of Conservation of Matter. This scientific law states that matter cannot be created out of nothing nor can it be destroyed.
MA_775_DIABLO [31]3 years ago
7 0

<u>Answer:</u>

<em>Law of conservation of mass state that mass can neither be created nor be destroyed.  Also chemical reaction of the sum is outlined in The Law Of Conservation of Matter.</em>

<u>Explanation:</u>

In a chemical reaction the sum of the masses of the products will be equal to the sum of the masses of the reactants. <em>Thus a chemical reaction conserves the total mass.</em> For this law to be valid the system where the reactions take place should be closed.

It has to be properly ensured that there is no transfer of energy or mass between the system and its outer environment. <em>If that happens the sum of masses of products differs from that of the reactants due to the gain or loss of matter to surroundings.  </em>

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each of the following reactions has been reported in the chemical literature. predict the product in each case, showing stereoch
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(a): This is an elimination reaction. The reaction proceeds in 3 steps; Step 1: Protonation of alcohol, step 2: Loss of leaving group, and step 3: Deprotonation to form an alkene. Elimination (E1) reaction dominates than substitution (SN1) reaction because the formed HSO4- anion is a poor nucleophile and tends not to add to the carbocation intermediate formed. Hence the product formed is I, is trans.

(b) This is a dihydroxylation of the alkenes reaction. A catalytic amount of OsO4 is used along with an oxidizing agent, which oxidizes the reduced osmium(VI) into osmium(VIII) to regenerate the catalyst. The reaction proceeds in 2 steps; Step 1: Cis addition of OsO4 to double bond and form 4 member cyclic osmate ester. Step 2: Hydrolysis of the intermediate to 1.2-diol. Hence the product formed is II, is cis. 

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Stereochemistry, a subdiscipline of chemistry, involves the take a look at the relative spatial association of atoms that form the shape of molecules and their manipulation.

The observation of stereochemistry specializes in stereoisomers, which by means of definition have an equal molecular method and series of bonded atoms (constitution), however, differ within the three-dimensional orientations of their atoms in space. for that reason, it's also referred to as 3-d chemistry three-dimensionality.

Learn more about  Stereochemistry here:-brainly.com/question/13266152

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<u>Disclaimer:- your question is incomplete, please see below for the complete question.</u>

Each of the following reactions has been reported in the chemical literature. Predict the product in each case, showing stereochemistry where appropriate.

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