Answer:
C
Explanation:
It afffects changes in pressure and temperature not melting and boiling points
Answer:
Option C. 760mmHg & 0°C
Explanation:
The standard pressure = 760mmHg = 1atm = 760torr = 101325N/m2
= 101325Pa
Standard temperature = 0°C =273K
From the above, the right combination is 760mmHg and 0°C
A solution is always transparent, light passes through with no scattering from solute particles which are molecules in size. The solution is homogeneous and does not settle out. A solution cannot be filtered but can be separated using the process of distillation.
A suspension is cloudy and heterogeneous. The particles are larger than 10,000 Angstroms which allows them to be filtered. If a suspension is allowed to stand the particles will separate out.
A colloid is intermediate between a solution and a suspension. While a suspension will separate out a colloid
will not. Colloids can be distinguished from solutions using the Tyndall effect. Light passing through a colloidal dispersion, such as smoky or foggy air, will be reflected by the larger particles and the light beam will be visible.
A pure substance is a solid, liquid or gas which molecules which are all identical, or an infinite crystaline polymer in which all unit cells are the same.
Polar covalent bonds are between atoms with different electronegativities, whereas nonpolar covalent bonds are between atoms with the same electronegativity.
This means that HCl is a polar covalent bond, whereas H2 is a nonpolar covalent bond.
Van der waals forces < hydrogen bonding forces < Crystal lattice forces.
Explanation:
Hydrogen bonds are very strong intermolecular forces. They are a special dipole-dipole bonds formed by the attraction between hydrogen atom of one molecule and an electronegative atom of another molecule.
- Hydrogen bonds are stronger than van der waals forces.
- Van der waals forces are weak attractions joining non-polar and polar molecules together.
- Hydrogen bonds are more effective in binding molecules together.
- Crystal forces are found in solids and are strong electrostatic forces of attraction between oppositely charged ions
Learn more:
Intermolecular forces brainly.com/question/10107765
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