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No, they do not.

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Q: Do mixtures contain exact ratios of elements?
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Related questions

What do compounds always contain exact ratios of?

elements


What is a list of Elements in a compound in exact ratios?

the emperical formula


How is a compound similar to a homogeneous mixture How is it different?

Both compounds and homogeneous mixtures are made of more than one element and are homogeneous. However, compounds must be made from elements in an exact ratio and involve chemical bonds between the elements in them.


When do two ratios form a proportion?

When both can multiply its comparisons to when both ratios share the exact same numbers.


What the relationship between the elements and the compounds?

Atoms make up all matter. An element has atoms that are all the same. Compounds are made of different kinds of atoms combined chemically in exact whole number ratios.


What is the relationship between atoms elements and compounds?

I believe...compounds are made up of two or more elements. Elements are made up of atoms.


What is the similar and difference of elements and compound?

DIFFERENCES• Compounds have two or more different types of atoms.• Elements are pure substances that have the exact same type of atom.SIMILARITIES• They are both pure substances.


Is a substance in which all the exact combinations of elements are always the same?

A substance in which the exact combination of elements is always the same, is called a compound.


When reactive elements combine they give off heat and what other substance?

Heat is energy, not a substance. When reactive elements combine they form more stable compounds. The exact substance formed depends on the elements. e.g. hydrogen and oxygen form water while sodium and chlorine form common table salt.


What elements are in food?

Elements are in everything! Whether they are in pure form, in a compound or a mixture, nothing isn't made of elements in some form. So, yes elements are in food and food is one of the best ways of ingesting elements such as Potassium as minerals.


The composition of a mixture can vary unlike a compound explain why?

Compounds are made by combining two elements to an exact percentage, to change one thing would revert it to its original elements. Mixtures are combinations of two elements that do not depend on this as a mixture is not chemically bound. Jay Sanga


How is a compound similar to a homogeneous mixture and how is it different?

Both compounds and homogeneous mixtures are made of more than one element and are homogeneous. However, compounds must be made from elements in an exact ratio and involve chemical bonds between the elements in them.