Two elements can combine to form a compound:
Carbon and Hydrogen can form Methane:
C + 2H2 -> CH4
More than two elements can combine to form a compound:
We have Methane from the first reaction. Add Chlorine to form Chloromethane:
CH4 + Cl2 -> CH3Cl +HCl
Two [or more] compounds can combine to make new compounds:
[Cr(N2H4CO)6]4[Cr(CN)6]3 + KMnO4 + H2SO4 = K2Cr2O7 + MnSO4 + CO2 + KNO3 + K2SO4 + H2O
Two or more substances that are physically combined make up a mixture.
1. If these chemicals react they form new compounds.
2. Without a chemical reaction they form a mixture.
They form a mixture.
a mixture
Mixture
Elements are pure substances that can not be separated into simpler substances by physically or chemical means.Compounds are pure substances composed of two or more elements that have been chemically combined.Mixtures are a combination of two or more substances that are not chemically combined.
compounds
mixture [mec3usa] Hydrated calcium sulphate is one example. The water in the substance is not chemically combined with the salt (CaSO4).
Compounds are two or more elements combined on a set ratio, and mixtures are not chemically combined, they are two or more substances mixed together
It would be a compound.
Two or more substances that are not chemically combined make up a mixture.
A(n) mixture is made of two or more substances that are together in the same place but are not chemically combined.
mixed substances
Mixture
Mixture
A mixture.
A mixture
They form a mixture.
mixture
mixture
Compound
A mixture is a material system made up by two or more different substances which are mixed but are not combined chemically