Pretty sure it’s Mixture if I’m not wrong
Explanation:
The speed of molecules increases when temperature is increased as it will result in more number of collisions between the molecules. Thus, there will be increase in kinetic energy of molecules and increase in the speed of solvent molecules.
Whereas on decreasing the temperature, the kinetic energy of molecules will decrease. This will result in less number of collisions between the molecules. Therefore, the speed of solvent molecules will slow down.
Answer:
D. Evaporating, condensing, collecting
Explanation:
The mixture is first heated so that the liquid needed to be collected can be evaporated into gas. Then, the gas is condensed back to liquid in a condenser. (usually the condenser is supplied with cold running water so speed up the condensation). Then, the liquid is collected after being condensed, in an apparatus such as a conical flask or a water bath.
Answer:
the third one The orange color one
Explanation:
Answer:
(C) PCl₅
Explanation:
(A) AlCl₄⁻
The central atom has 4 bond pairs and 0 lone pair. Hybridization is sp³. The geometry is tetrahedral which has an angle of 109.5°.
(B) NH₃
The central atom has 3 bond pairs and 1 lone pair. Hybridization is sp³. The geometry is pyramidal which has an angle of approximately 107.5°.
(C) PCl₅
The central atom has 5 bond pairs and 0 lone pair. Hybridization is sp³d². The geometry is trigonal bipyramidal in which the equatorial bonds has an angle of 120° and axial bond has an angle of 90°.
(D) CO₂
The central atom has 4 bond pairs and 0 lone pair. Hybridization is sp. The geometry is linear which has an angle of 180°.
(E) H₂O
The central atom has 2 bond pairs and 2 lone pairs. Hybridization is sp³. The geometry is bent shape which has an angle of approximately 105.5°.
