Generally yes (the law of definite proportions); as exceptions - nonstoichiometric compounds.
These ratios are not identical. In N2O5 the ratio is 2/5. In NO2 the ratio is 1/2.
An empirical formula refers to the chemical formula that indicates the simplest ratio of atoms in a compound. Two different compounds may have the same empirical formula.
A compound always contains the same elements in the same proportions by mass. This is a formal way of saying that a compound always has the same formula, no matter how it is made or where it is found.
Yes, the composition of a compound is fixed and consistent, always containing the same ratio of elements. This is a fundamental characteristic of compounds and is defined by their chemical formula.
Dalton discovered that the atoms that combine to form compounds are distinguished from one another by their atomic weights. He also learned that all atoms of a given element are identical.
yes
a compound
This substance is called a compound. Compounds are formed when atoms of different elements chemically bond together in fixed proportions. The ratio of these atoms in a compound is constant and is represented by a chemical formula.
Same type of atoms.
A chemical formula gives the number ratio of the different kinds of atoms present in the compound. This means that the ratios are the same if you count in individual atoms, dozens of atoms, or molecules of atoms.
Subscripts in a chemical formula are whole numbers because they represent the ratio of atoms in a compound. They indicate the number of atoms of each element present in the compound in the simplest whole number ratio. This is based on the law of constant composition, which states that a compound always contains the same elements in the same proportion by mass.
If matter is made up of two or more elements and has the same ratio of atoms no matter the amount of the substance, it is a compound. A compound is a substance composed of two or more elements chemically bonded together in a fixed ratio.
the simplest whole-number ratio of atoms in a compound. Different covalent compounds can have the same empirical formula if they have different molecular structures that still result in the same ratio of atoms.
a compound always has the same chemical formula
The ratio of elements in a compound is determined by the number of atoms of each element present in the compound. This ratio is represented by the chemical formula of the compound, showing the types and numbers of atoms involved in the chemical bonding.
Two or more different elements that are chemically combined in a definite ratio is a compound. Based on the nature of the bonds, it can be called an ionic compound (i.e. atoms bonded together by ionic bonds) or an molecular compound (i.e. atoms bonded together by covalent bonds).
No, elements in a compound are not always present in the same proportions. The ratio of elements in a compound is determined by its chemical formula.