True!! they can be measured without changing chemical identity.
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Let us study about this reaction </h2>
Explanation:
This given reaction is a chemical reaction that is : Double decomposition reaction .
In this reaction , there is a reaction between two compounds in which they mutually interchange their ions .
That is :
AB +CD ---> AC +BD
Similarly in this we have :
Na3PO4+KOH—->NaOH + K3PO4
The double decomposition reaction is either :
Precipitation reaction : resulst in the formation of ppt .
Neutralization reaction : results in the formation of neutral substance
Explanation:
A covalent bond is defined as the occurrence of a bond due to the sharing of electrons between the combining atoms.
Atomic number of hydrogen atom is 1 and its electronic configuration is . So, in order to complete its octet it needs to gain or mutually shares one electron.
A covalent bond is generally formed between non-metal atoms.
Thus, we can conclude that hydrogen has only one electron that will be involved in the formation of a covalent bond.
Answer:
The answer to your question is: 70.8%
Explanation:
Data
Al₂O₃ = 60 g
C = 30 g
CO = gas
Al = 22.5 g
MW Al₂O₃ = 102 g
MW C = 12 g
MW Al = 54 g
Reaction
Al₂O₃ + 3C ⇒ 3 CO + 2 Al
Limiting reactant
102 g of Al₂O₃ -------------- 54 g Al
60 g -------------- x
x = 31.8 g
36 g of C ------------------ 54 g of Al
30 g of C ------------------ x
x = 45 g of Al
Limiting reactant = Al₂O₃
Percent yield =
Percent yield = 70.75 %