Answer:
H-O-H polar
O-C-O nonpolar
H-C-N polar
Explanation:
Looking up the electronegativities of the atoms involved in this question, we have:
Atom Electronegativity
H 2.2
C 2.55
N 3.04
O 3.44
All of the atoms differ in electronegativity resulting in individual dipole moments in H-O, O-C, H-C and C-N bonds. To find if the molecules will be polar we need to consider the structure of the compound to see if there is a resultant dipole moment.
In H-O-H, we have 2 lone pairs of electrons around the central oxygen atom which push the angle H-O-H of the ideal tetrahedral structure to be smaller than 109.5 º resulting in an overall dipole moment making it polar.
In O-C-O, we have two dipole moments that exactly cancel each other in the linear molecule since the central carbon atom does not have lone pairs of electrons since it has 2 double bonds. Therefore the molecule is nonpolar.
In H-C-N, again we have have a central carbon atom without lone pairs of electrons and the shape of the molecule is linear. But, now we have that the dipole moment in C-N is stronger than the H-C dipole because of the difference in electronegativity of nitrogen compared to hydrogen. The molecule has an overall dipole moment and it is polar.
Answer:
30.36moles
Explanation:
6CO2 + 6H2O → C6H12O6 + 6O2
From the equation above,
6moles of H2O are required to produce 1 mole of C6H12O6
Therefore, Xmol of H2O will be require to 5.06moles of C6H12O6 i.e
Xmol of H2O = 6 x 5.06 = 30.36moles
Therefore, 30.36moles of H2O are needed.
Just like there are different levels and branches of math they are different branches of chemistry like in math different jobs require different types of levels of chemistry and math. Do you learn different things in the groups.
Answer:
c
Explanation:
in kc we only consider gases and aquas not solids and liquids
Part I4Fe + 3O2 -> 2Fe2O3. This is redox reaction and the reaction is also called rusting. The reaction can be classified as a combination reaction.
Part II2H2O2 -> 2H2O + O2. The evolution of bubbles was the indication that a chemical reaction was taking place.
Part III.2Zn + 2HCl -> H2 + ZnCl2. A displacement reaction occurs in the reaction. A metal and a acid are common reactants in this reaction.
Part IV.NaHCO3 + CH3COOH -> CH3COONa + H2CO3
The second reaction isH2CO3 -> CO2 + H2O
which is decomposition reaction.
