Propanone is more soluble in water compared to propane mainly because propanone cannot hydrogen bond with themselves but can hydrogen bond with water molecules. One of the slightly positive hydrogen atoms in a water molecule can be sufficiently attracted to one of the lone pairs on the oxygen atom of propanone. In order for 3-hexanol to bond with water, the van der Waals forces must be broken and also the stronger hydrogen bonds of water molecules and it needs a great amount of energy.
b. secondary succession has soil
c. primary succession has soil
d. primary succession has water
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:
B.they increase the concentration of reactants
C.they decrease the concentration of products
D. They act as reactants
Answer:
D) They act as reactants
Explanation:
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b) H2(g) + Cl2(g) ----> 2HCl(g)
c) 2Li(s) + F2(g) ----> 2LiF(s)
d) S(s) + Cl2(g) ----> SCl2(g)
e)N2(g) + 2O2(g) ----> 2NO2(g)
f) Mg(s) +Cu(NO3)2(aq) = Mg(NO3)2(aq) + Cu(s)
For each reaction above, identify the reducing agent and the oxidizing agent
Answer :
Oxidation-reduction reaction : It is a type of reaction in which oxidation and reduction reaction occur simultaneously.
Oxidation reaction : It is the reaction in which a substance looses its electrons. In the oxidation reaction, the oxidation state of an element increases.
Reduction reaction : It is the reaction in which a substance gains electrons. In the reduction reaction, the oxidation state of an element decreases.
(a) The balanced chemical reactions is,
Half reactions of oxidation and reduction are :
Oxidation :
Reduction :
From this we conclude that, 'Na' is oxidized and is reduced in this reaction. The reducing agent is, 'Na' and oxidizing agent is, .
(b) The balanced chemical reactions is,
Half reactions of oxidation and reduction are :
Oxidation :
Reduction :
From this we conclude that, is oxidized and is reduced in this reaction. The reducing agent is, and oxidizing agent is, .
(c) The balanced chemical reactions is,
Half reactions of oxidation and reduction are :
Oxidation :
Reduction :
From this we conclude that, 'Li' is oxidized and is reduced in this reaction. The reducing agent is, 'Li' and oxidizing agent is, .
(d) The balanced chemical reactions is,
Half reactions of oxidation and reduction are :
Oxidation :
Reduction :
From this we conclude that, 'S' is oxidized and is reduced in this reaction. The reducing agent is, 'S' and oxidizing agent is, .
(e) The balanced chemical reactions is,
Half reactions of oxidation and reduction are :
Oxidation :
Reduction :
From this we conclude that, is oxidized and is reduced in this reaction. The reducing agent is, and oxidizing agent is, .
(f) The balanced chemical reactions is,
Half reactions of oxidation and reduction are :
Oxidation :
Reduction :
From this we conclude that, is oxidized and is reduced in this reaction. The reducing agent is, 'Mg' and oxidizing agent is, 'Cu'.
According to the periodic table, a sodium atom forms ion by losing two electrons correctly describes the change from a neutral atom of an element to its ion.
What is a neutral atom?
A neutral atom is an atom where the charges of the electrons and the protons balance.
Atomic number 11.
Mass number 23.
Na Electron arrangement 2, 8 , 1 Will lose 1 electron to gain a full valence shell.
Since now 11 + and 10 –, the overall charge is 1+ So we write or simply .
Learn more about the neutral atom here:
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