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Elements combine according to the electrons in their outer shell. These allow only certain combinations which form a ratio. Oxygen has 2 + in its outer shell. Hydrogen has 1 - in its outer shell. So the ratio is always 2:1.

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Related Questions

Do elements that combine in changing ratios form mixtures?

When elements combine in changing ratios, they form compounds rather than mixtures. Mixtures are made up of different substances that are not chemically bonded together, while compounds are formed by chemical bonding between elements in specific ratios.


What type of matter is made of elements in a specific ratio that is always the same?

Elements combined in specific ratios form compounds.


What are compounds made up of?

Compounds are made up of two or more different elements that are chemically bonded together. These elements combine in specific ratios to form compounds with unique properties.


What are compounds composed of?

Compounds are composed of two or more different elements that are chemically bonded together. These elements combine in fixed ratios to form specific compounds with unique chemical and physical properties.


How did dalton explain the formation of compounds?

Dalton proposed that elements combine in simple whole number ratios to form compounds, based on his atomic theory. He suggested that atoms of different elements combine in specific ratios to form compounds, where each compound has a unique composition. This explanation laid the foundation for understanding chemical reactions and the formation of compounds.


Do elements combine to make compounds?

Yes, elements combine in specific ratios to form compounds. A compound is a substance made up of two or more different elements chemically bonded together. The chemical bonds between elements in compounds are formed through interactions at the atomic level.


What is formed when two or more elements combine?

When two or more elements combine, they form a compound. Compounds are composed of atoms of different elements bonded together in specific ratios.


Which elements make up compounds?

Compounds are made up of two or more different types of elements that are chemically bonded together. The elements combine in specific ratios to form unique substances with distinct properties. Examples of compounds include water (H2O) and sodium chloride (NaCl).


What do two or more elements combine chemicals form?

They are bonded together via chemical bond and form compounds.


Can two completely different compounds contain identical elements?

No. The chemical formulas for the two compounds would be different as the ratios were different. For example there are three different oxides of iron which obviously contain the same two elements but these are in different ratios:- FeO Fe3O4 Fe2O3


How are elements related to compound?

When two or more elements are chemically combined,they form a compund.Like when you mix hydrogen and oxygen together, the result is H2O(water).When you combine sodium and chlorine,you get NaCl (salt).


What parts of daltons atomic theory is illustrated by 2 parts of hydrogen and oxygen forming water?

Dalton's atomic theory is illustrated by the combination of hydrogen and oxygen to form water in two ways: through the law of definite proportions, which states that compounds contain elements in specific ratios by mass, and through the law of multiple proportions, which states that different compounds can be formed by combining the same elements in different ratios.