Section 5 Review

Front

What is sublimation?

Back

Sublimation is the process where a solid changes directly into a gas without passing through the liquid state, typically due to weak dispersion forces.

Front

Which type of compound has the highest melting point?

Back

Covalent network solids have the highest melting point compared to ionic compounds and molecular compounds.

Front

Why does ice float on water?

Back

Ice floats on water because water is more dense than ice.

Front

Which type of compound has the lowest melting point?

Back

Molecular compounds have the lowest melting point compared to ionic compounds and covalent network solids.

Front

What is the solubility state of KNO3 if 50g of solute is present at 50 degrees Celsius?

Back

The solubility state of KNO3 would be unsaturated.

Front

Define ionic compounds.

Back

Ionic compounds are formed when atoms transfer electrons, resulting in the attraction between positively and negatively charged ions.

Front

What are covalent network solids?

Back

Covalent network solids are materials where atoms are bonded by covalent bonds in a continuous network, leading to high melting points.

Front

Explain the concept of density in relation to ice and water.

Back

Density is the mass per unit volume; ice is less dense than water, which is why it floats.

Front

What are molecular compounds?

Back

Molecular compounds are formed when two or more nonmetals share electrons through covalent bonds.

Front

What is the difference between saturated, unsaturated, and super saturated solutions?

Back

Saturated solutions contain the maximum amount of solute that can dissolve at a given temperature, unsaturated solutions can dissolve more solute, and super saturated solutions contain more solute than can normally dissolve.