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When determining the polarity of a molecule you need to consider the distribution of electric charge in the molecule.
To achieve this you need to:
- establish the spatial form of the molecule. [a completely simetric molecule will never be polar]
- know what atoms the molecule consists of
- determine the difference in electronegativity between the molecule's atoms.
In less complex molecules a big difference between atoms on different sides of the molecule will determine that it is polar, the higher the difference, higher the polarity.
For more details on this issue sign up to a chemistry course ina university near you,
cause this is defenently the shorter answer -
Hope I helped :>
Wiki User
∙ 15y ago
Wiki User
∙ 10y agoAn example of evidence that water molecules are polar is the fact that a thin stream of water is repeled by by a charged rod
P.S i did not see any suggested answers which is implied by the 'which of these'
Wiki User
∙ 6y agoThe fact that ionic substances tend to dissolve in water is a big clue. Another one which is also great fun is the 'bending water' trick. You need a polythene rod and a fuzzy charging cloth, and a tap with a thin trickle of water coming from it. Charge up the rod then bring it near to the water stream,but not touching it, a few inches below the spout. You should be able to deflect the water stream so that it is pulled over towards the rod.
Wiki User
∙ 14y agoIf oxygen, nitrogen, or phospherous are included in a molecule it is more than likely going to be polar.
Wiki User
∙ 11y agoThe Molecule has a polar covalent bond and the dipole is established due to asymetrical arrangement of atoms
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PCl3 polar or non polar?
PCl3 has a pyramidal geometry, with three polar P-Cl bonds and one lone pair of electrons. Hence the molecule is polar.
Is cf3cl polar?
CF3Cl is a polar molecule. There are three C-F polar bond and and C-Cl polar bond. The bond dipoles do not cancel out and hence the compound is a polar molcule.
Is BCl4 a polar or nonpolar molecule?
I don't think BCl4 is even a POSSIBLE molecule since boron has only three valence electrons; perhaps you mean BCl3 (which is nonpolar)?
How many elements form a molecule of barium sulfate?
Three: barium, sulfur, and oxygen.
How many elements are in a molecule of calcium carbonate (CaCO3)?
Three elements; the metal calcium in the positive portion of the compound, and the elements carbon and oxygen in the negative carbonate radical.
Why is aluminium trichloride molecule non polar but the bonds in it are polar?
Because of the geometry/symmetry of the molecule. The three Cl atoms are arranged in such a way that the charge distribution is equal, thus making the molecule non polar.
What three elements form carbon dioxide?
atom; molecule; molecule.
PCl3 polar or non polar?
PCl3 has a pyramidal geometry, with three polar P-Cl bonds and one lone pair of electrons. Hence the molecule is polar.
Is cf3cl polar?
CF3Cl is a polar molecule. There are three C-F polar bond and and C-Cl polar bond. The bond dipoles do not cancel out and hence the compound is a polar molcule.
Is BCl4 a polar or nonpolar molecule?
I don't think BCl4 is even a POSSIBLE molecule since boron has only three valence electrons; perhaps you mean BCl3 (which is nonpolar)?
Is NCl3 polar or non-polar?
NCl3 could be considered nonpolar because nitrogen and chlorine have nearly the same electronegativity.
When elements have more than one atom what is it called?
Two atoms - Diatomic Molecule Three atoms - Triatomic Molecule
How many different elements are in a molecule of glucose?
A molecule of glucose has three different elements viz., carbon, oxygen and hydrogen. The molecular formula of glucose is C6H12O6. There is actually 24 different elements. There are 6 Carbon elements,12 Hydrogen elements, and 6 Oxygen elements.
How many elements form a molecule of barium sulfate?
Three: barium, sulfur, and oxygen.
How many different element are there in a molecule of glucose?
A molecule of glucose has three different elements viz., carbon, oxygen and hydrogen. The molecular formula of glucose is C6H12O6. There is actually 24 different elements. There are 6 Carbon elements,12 Hydrogen elements, and 6 Oxygen elements.
Name of three atoms per molecule?
Some Elements and compound that have three atoms per molecule are-Water- H2OOzone- O3Carbon Dioxide- CO2Sulpher Dioxide- SO2 etc.
How do you-determine if a molecule is polar or non-polar?
Polar Bonds and Molecular ShapeA polar molecule is a molecule that has a net dipole moment due to its having unsymmetrical polar bonds. There are two factors that go into determining if a molecule is polar or not. To determine if a molecule (or ion) is polar or non-polar, you must determine both factors.The polarity of the individual bonds in the molecule.The shape or geometry of the molecule.First, to determine if a given individual bond is polar, you need to know the electronegativity of the two atoms involved in that bond. To find the electronegativities of all the elements, look at the Periodic Table (follow the link below this answer under Web Links).If the electronegativity of the two atoms has a difference of 0.3 or less, then the bond is non-polar. If the electronegativity difference is greater that 0.3 but less than 1.7, then the bond is polar. If the two values have a difference greater than 1.7, then the bond is ionic, which is just very very polar.Once you know which bonds in the molecule are polar and which are non-polar, you must use the shape of the molecule. You need the shape because two polar bonds, if oriented correctly can cancel each other out (like two equally strong people pulling in opposite directions on a rope -- nobody moves).The three possible outcomes:If all bonds are non-polar, then the whole molecule is non-polar regardless of its shape.If there is symmetry in the molecule so that the polarity of the bonds cancels out, then the molecule is non-polar. A common example of this is carbon dioxide, or CO2. The molecule is linear, and its Lewis dot structure is like this: O=C=O (this doesn't include two sets of lone pairs on each oxygen). The carbon-oxygen bond is a polar bond, but because they are exactly opposed to each other, the molecule is overall non-polar. Another example of this is CCl4, where each carbon-chlorine bond is polar, but the molecule is non-polar. Here, how they cancel out isn't as obvious, but they do. CCl4 is a tetrahedral molecule, and the 4 C-Cl polar bonds cancel each other out.If there are polar bonds but there is no symmetry such that they cancel each other out, the overall molecule is polar. Water is a typical example of this. The two O-H bonds are oriented in a V-shape, and so the don't cancel out. Similarly, CH3Cl is also polar. It is the same shape as CCl4 (see above), but now it doesn't have the same symmetry because there is only one C-Cl bond and the bonds don't cancel out anymore.
