they all contain 2 substances or more
it is an element as it contains same kind of atoms
Mixture
It is a heterogeneous mixture because you can distinguish between the different colored marbles. The mixture is not the same throughout.
A compound contain elements chemically bonded.A mixture contain two or more compounds; they can be separated by physical procedures.An element is formed only from similar atoms, having the same number of protons.
Blood is a mixture containing plasma and blood cells.
A compound contain elements chemically bonded.A mixture contain two or more compounds; they can be separated by physical procedures.An element is formed only from similar atoms, having the same number of protons.
It is a diatomic element. As such, it would be a solution. It is not a heterogenous mixture because heterogenous means nonuniform. N2 is uniform because it is composed of all the same element in the same proportion. It's a solution.
no because it is just two of the same thing, although they are bonded, it is not an atom nor a compound, nor a mixture ,it is simply an element
A compound is a mixture of two or morel types of atoms. An isotope is a single atom of one element with a different number of neutrons. They are not the same thing.
The main constituent of common table salt is a compound, with the formula NaCl and the name of sodium chloride. Actual table salt may be a mixture, with small amounts of other materials in it.
silver is an element because, it is a pure chemical substance composed of atoms with the same number of protons.
Graphite is made of carbon and only carbon. Blood is composed of water, proteins, ions, and cells. Since there is more than one type of atom, it is not an element. Since there is more than one type of particle, it is not a compound. This makes it a mixture. Since the composition of the mixture doesn't differ significantly between different samples from the same organism on the same day at the same time, it can be called a homogeneous mixture.