Usually yes, but they could be mixtures of atoms.
Yes. Everything is composed of molecules (except for molecules themselves).
A compound is, by definition, a single, and hence pure substance (composed of molecules), and a mixture is, also by definition, two or more substances which are mixed together.
false all solutions are mixtures but not all mixtures are solutions
Oh, dude, compounds are like those fancy molecules where the atoms are all bonded together in specific ratios, while mixtures are just a bunch of stuff hanging out together without any commitment. Compounds are like the serious relationships of chemistry, while mixtures are more like a chaotic party where everyone's just doing their own thing. So, like, compounds are all structured and organized, while mixtures are just a hot mess.
An element is composed of atoms all with the same proton number(they are the same type). The only way the atoms in an element can vary is in the number of neutrons they have.
At sufficiently high temperatures and low pressures, all elements are composed of atoms. At standard temperature and pressure, some elements are composed of molecules, usually diatomic molecules, as with nitrogen, hydrogen, oxygen, and all the halogens.
Yes. Everything is composed of molecules (except for molecules themselves).
All mixtures are composed of components that not chemically combined. Also, the amounts of the components that make up a mixture can vary.
Yes. Atoms can be alone or make mixtures called molecules, and mixtures of molecules and atoms make up everything.
Mixtures are composed of substances not chemically bonded together.
No. Hydrogen is an element, which forms the molecule H2. Elements and homogeneous molecules (molecules that are all of one kind) are not considered mixtures; mixtures are by definition heterogeneous. An example is air, which is a mixture of nitrogen, oxygen, carbon dioxide, ozone, water vapor, and dozens of other elements and compounds.
No, nitric acid is not a heterogeneous mixture. It is a clear, colorless liquid that is a pure substance composed of nitric acid molecules.
All solutions are mixtures, because they involve mixing anyway. However, all mixtures are not solutions, because according to the definition of solution, the microstructure of the solute (Molecules) must be penetrated and undergo the process called solvolysis. As a result, solution must be homogeneous. Mixtures can be either heterogeneous or homogeneous
All solutions are mixtures but not all mixtures are solutions. A solution is a mixture of compounds where molecules of one compound are dissolved in another like salt(the solute) in water(the solvent). Other mixtures might not be solutions though, like sand and gravel, because one does not dissolve in the other
No, not all molecules are compounds. Molecules can be composed of either a single element (such as O2 or N2) or a combination of different elements (like H2O or CO2). Compounds are molecules that are composed of atoms of at least two different elements.
Are compounds composed OF molecules? Yes they are.
some compounds are composed of molecules bound by ionic compounds so no