A molecule of consists of two atoms of hydrogen and one atom of oxygen. The chemical formula for water is .
Each hydrogen atom in a water molecule shares valence electron(s) with the oxygen atom.
The chemical formula for carbon dioxide is .
The chemical formula CO represents the compound .
Atoms or ions in compounds are held together by chemical .
Three types of chemical bonds are covalent, ionic, and bonds.

A molecule of Water consists of two atoms of hydrogen and one atom of oxygen.

The chemical formula for water is H2O .

Each hydrogen atom in a water molecule sharesone valence electron(s) with the oxygen atom.

The chemical formula for carbon dioxide is CO2 .

The chemical formula CO represents the compoundcarbon monoxide.

Atoms or ions in compounds are held together by chemicalbond.

Three types of chemical bonds are covalent, ionic, and metallic bonds

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

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answer: the primary difference between a hypothesis and a theory is that b hypothesis is falsifiable, but a theory has been proven to be correct. theory is an explanation of something that is happening but hypothesis is a guess of something that can happen

explanation: