Answer:
Qualitative: Physical observations (the sky is blue, the water is boiling, etc.)
Quantitative: Numberical observations (density= 1 g/ml, volume= 14 ft^3, etc.)
Explanation:
The way to remember it is quaLitative is qualities of the object. QuaNtitative is quantities of the object.
Answer: C) Bent or angular, polar
Explanation:
The central atom oxygen has two lone pairs and two bond pairs in . The number of electron pairs are 4, that means the hybridization will be and the electronic geometry of the molecule will be tetrahedral. But as there are two lone pair of atoms around the central oxygen atom, repulsion between lone and bond pair of electrons is more and hence the molecular geometry will be bent shape.
The compound is polar as the net dipole moment of oxygen - fluoride bonds do not cancel each other out.
Explanation:
the stationary phase in TLC is a <u>silica gel coated metal plate or paper</u>.
The<u> individual</u> component of the mixure will travel a greater distance up the plate, resulting in a <u>Rf</u> value for the component.
the <u>p-Xylene spot </u> will travel a greater distance as it is the <u>lighter</u> component
Bromobenzene will travel least as it is the <u>heavier</u> component.
thin layer chromatography (TLC) is a type of chromatographic seperation technique that is based on the molecular size of components. the Rf value is the distance covered by the component relative to that travelled by the solvent which is the mobile phase
Answer: Charles's law, Avogadro's law and Boyle's law.
Justification:
Boyle's law states that at constant temperature PV = constant
Charles law states that at constant pressure V/T = constant
Avogadro's law states that at constant pressure ant temperature, equal volume of gases contain equal number of moles: V/n = constant
Ideal gas law states PV/nT = constant => PV = nT*constant = PV = nTR