A pure substance has to consist of only one component with defined physical characteristics and definite composition. Two pure substances mixed but not chemically bonded will have more than one component.
The melting point will be reduced because an impure substance is not held together as strongly as a pure substance therefore it takes less energy to break the bonds or attractive forces holding the impure substance together.
If a substance in a mixture is preponderant--, if the amount far exceeds the amounts of the other substances in the mixture it is usually called an impure substance. Resource: Separation of the Components of a Mixture Lab -Chemistry
When baking soda and vinegar are mixed,a chemical reaction occurs.A new substance is made.The new substance is carbon dioxide.
it turns into a doughy substance , but don't add baking soda and vinegar
if a solution mixed any other soluion
a substance used in any processes
wow this looks very different. Where did you get the pure substances from?
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.
Yes baking soda and oil can be mixed together,especially when baking.
You actually saved me with this question. I needed the answer for a homework. I found out it was hydrogen peroxide.hydrogen peroxide can be used as a toothpaste if mixed correctly with baking soda or salt(not cooking salt)
Nope; not always. So the answer would be false. You have to realize that there might be impure substances mixed. Likewise impure substance can either lower the melting point or increase it :)M. Bilal :)
me