Which pair of compounds are isomers?(1) NO2 and N2O4
(2) P2O5 and P4O10
(3) HCOOH and CH3COOH
(4) CH3OCH3 and C2H5OH
Answers
Answer: and
Explanation: The compounds having similar molecular formula but different arrangement of atoms or groups in space are called isomers and the phenomenon is called as isomerism.
and
are functional isomers which have same molecular formula but different functional groups attached.
(1) and
are different compounds.
(2) and
are different compounds.
(3) and
are different compounds.
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Explanation:We have momemtum = mass X velocity
p = mv
OR, p/m = v
v = (125kg m/s)25kg
v = 125/25 m/s
v = 5 m/s
Answers
N,Br
- The elements which can donate their electrons are called metals
- The elements which can adopt other's electrons to acquire noble gas configuration are called non metals
Answers
Answer:
Chemists use a solution called Universal Indicator to identify acids and bases. ... The Universal Indicator Color Guide shows that Universal Indicator turns red when it is added to a strong acid, it turns purple when it is added to a strong base, and it turns a yellowish-green when it is added to a neutral solution.
Explanation:
Answer:
Phenolphthalein
Explanation:
Answers
1s 22s 22p1
1s22s22p4
1s 22s 2p2
1s 22s 22p2
Answers
Answer:
The answer to your question is: d
Explanation:
Electron configuration of Carbon.
Atomic number of carbon = 6
a) 1s²2s²2p¹ Number of electrons = 5, This is the electron configuration of Boron.
b) 1s²2s²2p⁴ Number of electrons = 8. This is the electron configuration of oxygen.
c) 1s²2s²p² Number of electrons = 6. This is the electron configuration of carbon. But I think is lacking a number two before p.
d) 1s²2s²2p² Number of electrons 6, This is the correct electron configuration of carbon.
Answers
Answer: There are 2 oxygen atoms on the reactant side.
Explanation:
Every balanced chemical equation follows law of conservation of mass.
This law states that mass can neither be created nor be destroyed, but it can only be transformed from one form to another form.
This law also means that total number of individual atoms on the reactant side will always be equal to the total number of individual atoms on the product side.
The given balanced chemical equation follows:
On reactant side:
Number of hydrogen atoms = 4
Number of oxygen atoms = 2
On product side:
Number of hydrogen atoms = 4
Number of oxygen atoms = 2
Hence, the number of oxygen atoms on the reactant side is equal to 2.
The following balanced equation, 2H2O = 2H2 +O2, shows the decomposition of water (H2O). According to the equation, there are two oxygen atoms in the reactants and another two oxygen atoms in the product side.