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Natalija [7]
3 years ago
6

AWNSER FAST PLEASE

Chemistry
1 answer:
Ann [662]3 years ago
3 0

Answer: The coefficients are 2, 2 and 1.

Explanation: According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants.

The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

The balanced chemical equation for the given reaction is:

2H2o➡️2h2+o2

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) Consider the starting materials and reagents. What do you expect to happen at the beginning of this reaction (Boxes 1-3 on the
tekilochka [14]

Answer:

Check the explanation

Explanation:

functional group found in the major organic product = alpha -beta unsaturated ketone

Reaction used to form this functional group = Michael condensation reaction

Also other reactions are - Aldol condensation , Robinson annulation reaction.

Kindly check the attached image below to see the step by step solution to the question above.

3 0
3 years ago
For the complete combustion of 47 g of gasoline (octane, C8H18) , the mass of oxygen consumed is
aleksklad [387]

Answer: d) 164.9 g

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}     \text{Moles of octane}=\frac{47g}{114g/mol}=0.412moles

The balanced chemical reaction is:

2C_8H_{18}(l)+25O_2(g)\rightarrow 16CO_2(g)+18H_2O(g)  

According to stoichiometry :

2 moles of C_8H_{18} require = 25  moles of O_2

Thus 0.412 moles of C_8H_{18} will require=\frac{25}{2}\times 0.412=5.15moles  of O_2

Mass of O_2=moles\times {\text {Molar mass}}=5.15moles\times 32g/mol=164.9g

Thus 164.9 g of oxygen is consumed.

4 0
3 years ago
64g of sulfur dioxide (SO2) contains 32g of oxygen. Calculate how much sulfur it contains?
KengaRu [80]
Mass of SO2 = mass of sulfur+ mass of oxygen
⇒ 64 g= mass of sulfur+ 32 g
⇒ mass of sulfur= 64 g-32 g
⇒ mass of sulfur= 32 g.

There is 32 g of sulfur in 64 g of SO2~
6 0
3 years ago
An _____ generates heat for an entire building from one central source.
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I believe it's heating
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4 years ago
What are 3 atoms that have 4 valence electrons? ​
nadya68 [22]
To know this, we look at the family numbers
I’m family 14, we know that each atom has 4 electrons
In family 14 there are the atoms:
Carbon
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Germanium
Tin
Lead
7 0
3 years ago
Read 2 more answers
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