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True or false Low melting points and lack of eletrical conductivity are properties of molecular compounds?
True. Molecular compounds have low melting points because their intermolecular forces are weaker compared to ionic or metallic compounds. They also do not conduct electricity well because they lack free-moving charged particles.
True or false an impurity raises the melting point of an organic compound?
False. In general, impurities lower the melting point of an organic compound by disrupting the crystal lattice structure.
Is it Metalloids have some characteristics of both metals and nonmetals true or false?
True. Metalloids look like metals but are brittle and are not good conductors.
Are metals able to form ionic bonds with nonmetal's true or false?
Yes, ionic bonds typically form between metals and nonmetals because the electronegativity difference between these types of elements is usually large.
Does only metals conduct electricity true or false?
False. Metals are good conductors of electricity, but there are other materials such as graphite, saltwater, and some types of solutions that can also conduct electricity.
Do All minerals have the same melting point True of False?
False, all minerals DO NOT have the same melting point
Is it true or false that the crystal lattice of ionic compounds affects their melting and boiling points?
True. The crystal lattice structure of ionic compounds plays a significant role in determining their melting and boiling points. The stronger the forces holding the ions in the lattice together, the higher the melting and boiling points of the compound.
Sublimation includes melting True or false?
false
True or false Low melting points and lack of eletrical conductivity are properties of molecular compounds?
True. Molecular compounds have low melting points because their intermolecular forces are weaker compared to ionic or metallic compounds. They also do not conduct electricity well because they lack free-moving charged particles.
Points have height and width but no depth True or false?
False. Points have no dimensions at all. They only have location.
True or false The melting temperature of a solid changes with the amount of material?
True
Are points K C G and J coplanar True or false?
true
True or false Points have width and height but no length?
False.
Do lift trucks with four wheels are supported at four points true or false?
false
Roasting is a proces in which metal sulfides are converted to metals true or false?
True
True or false Points are geometric objects with no dimensions?
True. Points are geometric objects with no dimensions.
True or false an impurity raises the melting point of an organic compound?
False. In general, impurities lower the melting point of an organic compound by disrupting the crystal lattice structure.
