Answer:
Most polymers, including poly(ethene) and poly(propene) are not biodegradable . This means that microorganisms cannot break them down, so they: cause a litter problem if disposed of carelessly. last for many years in landfill sites.
Explanation:
Answer:MgO>CaO>NaF>KCl
Explanation:
The lattice energy is one that depend on the attraction between oppositely charged ions in a compound/substance.
Following up with this the greatest forces of attraction will exist between ions that have the smallest radii.
And, because the attraction depends on the product of the charges, we prioritize ions with the greatest charge.
The smallest pair of ions will be able to get closest to each other relative to others. This implied that the smallest distance between centres will have the largest lattice energies relative to others.
2 single bonds form <span>in a molecule with a central atom containing five electrons in sp 3 hybrid orbitals.</span>
Answer:
(b) both the temperature and pressure of the gas decrease.
Explanation:
An ideal gas undergoes an adiabatic expansion, a process in which no heat flows into or out of the gas. As a result, both the temperature and pressure of the gas decrease.
Gay Lussac states that when the volume of an ideal gas is kept constant, the pressure of the gas is directly proportional to the absolute temperature of the gas.
Mathematically, Gay Lussac's law is given by;

Also, according to the first law of thermodynamics which states that energy cannot be created or destroyed but can only be transformed from one form to another. Thus, the ideal gas does work on the environment with respect to the volume and temperature.