Type your answer here... Nonpolar molecules
Type your answer here... Nonpolar molecules
Molecules with the lowest melting points are typically small, nonpolar molecules. These include gases like noble gases (e.g., helium, neon) or simple hydrocarbons (e.g., methane, ethane) that exhibit weak van der Waals forces. The minimal intermolecular forces in these substances result in lower melting points compared to larger or polar molecules with stronger interactions.
Covalent molecules which contain only bonds between elements of similar electronegativity. For example: Carbon and hydrogen. They must not contain polar bonds like Oxygen and hydrogen.
You have to look at the actual structures of each substance in the group. For each individual substance, think of it being multiplied many times, until you have a little "sea" of all one type of molecule. There are three forces that are possibly at work between these identical molecules: Van Der Waals, dipole-dipole, and hydrogen bonding. (You can find definitions for these terms with an online search if you're not sure what they are.) If a substance can participate in hydrogen bonding between two of its molecules (draw a picture of the structure, and then a copy of that structure oriented in such a way that the H of an H-F, H-O, or H-N bond can line up with a non-bonding electron pair on the second molecule) then it will have strong intermolecular forces, needing a lot of energy to break, and by extension a higher melting point. Dipole-Diploe forces, in the absence of hydrogen bonding, are next in line. The lowest melting points of substances occur when there are only Van Der Waals forces at work between the molecules of a substance.
These are solids with covalent bonds.
No, the color of a candle does not affect its melting point. The melting point of a candle is determined by the type and quality of wax used, not by its color.
The melting point of cooking oil varies depending on the type of oil. For example, the melting point of olive oil is around 21C (70F), while the melting point of coconut oil is around 24C (76F).
The melting point of coal can vary depending on the type and composition of the coal. Typically, the melting point of coal ranges from 2100 to 2400 degrees Fahrenheit.
When the temperature reaches the lowest melting point of the mineral or minerals of which the rock is made.That depends entirely on what type of rock you have, and what it's made up of. Different substances have different melting points. Igneous rock has the highest, which means they don't melt easily. You'd have to know what types of materials are in the rock and look up their respective melting points in a chemistry book, or online. There is no one single answer to your question.
The melting point of polyurethane (PU) can vary depending on the specific type of PU. Generally, the melting point of PU is around 170-220°C (338-428°F).
The melting point of crystal depends on the specific type of crystal. Different crystals have different melting points depending on their chemical composition and structure.
molecular solid