Answer:
If the angle of insolation is higher, then the temperature of the soil will be higher because it will receive more direct light.
Explanation:
Answer:
ions are surrounded by hydrogen ends with positive partial charge. In this way the salt is dissolved in water. Sugar is a molecular compound formed by covalent bonds. In a polar covalent bond, electrons are shared unevenly
Explanation:
Answer:- Molecular formula of the compound is
.
Solution:- From given information:
C = 46.47%
H = 7.80%
Cl = 45.72%
First of all we find out the empirical formula from given percentages. We divide the given percentages by their respective atomic masses to calculate the moles:
= 3.87
= 7.72
= 1.29
Now, we divide the moles of each by the least one of them. Least one is Cl as it's moles are least as compared to the moles of C and H. So, let's divide the moles of each by 1.29.
= 3
= 6
= 1
So, the empirical formula of the compound is
.
Empirical formula mass = 3(12.01) + 6(1.01) + 1(35.45)
= 36.03 + 6.06 + 35.45
= 77.54
To calculate the number of formula units we divide molar mass by empirical formula mass.
number of empirical formula units = 
= 2
So, the molecular formula would be two times of empirical formula that is,
.
Answer:
(i) Oxidizing Agent: NO2 / Reducing Agent NH3-
(ii) Oxidizing Agent AgNO3 / Reducing Agent Zn
Explanation:
(i) 8NH3( g) + 6NO2( g) => 7N2( g) + 12H2O( l)
In this reaction, both two reactants contain nitrogen with a different oxidation number and produce only one product which contains nitrogen with a unique oxidation state. So, nitrogen is oxidized and reduced in the same reaction.
Nitrogen Undergoes a change in oxidation state from 4+ in NO2 to 0 in N2. It is reduced because it gains electrons (decrease its oxidation state). NO2 is the oxidizing agent (electron acceptor).
Nitrogen Changes from an oxidation state of 3- in NH3 to 0 in N2. It is oxidized because it loses electrons (increase its oxidation state). NH3 is the reducing agent (electron donor)
(ii) Zn(s) +AgNO3(aq) => Zn(NO3)2(aq) + Ag(s)
Ag changes oxidation state from 1+ to 0 in Ag(s).
Ag is reduced because it gains electrons and for this reason and AgNO3 is the oxidizing agent (electron acceptor)
Zn Changes from an oxidation state of 0 in Zn(s) to 2+ in Zn(NO3)2. It is oxidized and for this reason Zn is the reducing agent (electron donor).
Balanced equation:
Zn(s) +2AgNO3(aq) => Zn(NO3)2(aq) + 2Ag(s)
Answer:
4Fe+ 6H2 O+ 3O2 ----> 4Fe(OH)3