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Substances made up of simple molecules have low melting points because there are strong bonds between the atoms in the molecule, but weak bonds holding the molecules together. Therefore, the intermolecular forces break fairly easily, due to the fact that they are weak and the covalent bonds making up the molecule do not break because they are strong. This means that, due to the weak intermolecular forces breaking down easily, simple molecular substances have low melting and boiling points.
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Describe what a pure material or substance is?
These are substances that contain only one type of atoms/molecules. For example, diamond is a pure substance. Diamonds are made of strictly carbon atoms. Melting points and Boiling points of pure substances always remain constant !
What are molecules made up of?
Molecules are substances consisting two or more atoms.
How are elements atoms molecules chemical bonds compounds mixtures and substances related?
Elements and atoms are mainly the same. Molecules are made up of atoms and chemical bonds are bonds that combine the atoms together to make molecules. Compounds are just about the same as molecules only are made up of molecules like how molecules are made of atoms. Substances can relate to anything, and mixtures are many compounds and molecules mixed together.
What is the characteristics of covalent substances?
Covalent substances are made up of molecules held together by covalent bonds, where atoms share electrons. These substances tend to have lower melting and boiling points compared to ionic compounds, and they are typically nonconductors of electricity in their solid state. Covalent substances can exist in various forms, including gases, liquids, and solids.
What is matter made up of two or more substances known as?
Compounds / molecules
Why molecular substances with weak intermolecular forces have low melting points?
The cause is just this weak intermolecular force, ease to be broken.
Is a line made of points?
A line can be considered as a locus of points. However, it is not "made up" of points in the way that a physical object is made up of molecules, or atoms, or sub-atomic particles.
What hydrophilic substances are made of?
Hydrophilic substances are typically made of polar molecules, such as water and other compounds containing hydroxyl groups (-OH), carbonyl groups (C=O), or amino groups (-NH2). These groups enable the substances to interact with water molecules, leading to their dissolution or dispersion in water.
Do compounds that are made of molecules tend to have high melting points?
Several of them certainly do. Furthermore, a great many of them don't. All compounds are made of molecules.
What are substances that are extended structures made up of billions of tightly packed atoms and molecules?
Just about anything you can see with your naked eye is made up of billions of molecules.
What is a simple mixture?
a substance made by mixing other substances together (NOUN)
Is Mg simple or molecular?
Magnesium (Mg) is a simple substance, classified as a metal. In its elemental form, it exists as a solid with a metallic lattice structure, consisting of individual magnesium atoms bonded together. Unlike molecular substances, which are made up of discrete molecules, magnesium does not form molecules but rather exists as a continuous array of atoms in a metallic bond.
