When elements are combined in a fixed ratio What is formed?

compound
A compound is a combination of two or more different elements which are combined chemically in a fixed ratio.

What happens when the same elements combine in different ratios?

A compound always consists of the same elements in the same ratio. If the same elements combine in different ratios, they form different compounds. Types of compounds include covalent and ionic compounds. They differ in the nature of the bonds that hold their atoms or ions together.

What would the be the ratio of number of combining atoms in a compound formed by the combination of element A with carbon?

(v) A is H so the compound formed by the combination of element A with carbon will be CH4 and the ratio of combining atoms will be 4:1.

What happens when two elements combine to form a compound?

When two distinct elements are chemically combined—i.e., chemical bonds form between their atoms—the result is called a chemical compound. Most elements on Earth bond with other elements to form chemical compounds, such as sodium (Na) and Chloride (Cl), which combine to form table salt (NaCl).

Do compounds have to be in a fixed ratio?

Like water, all compounds consist of a fixed ratio of elements. It doesn’t matter how much or how little of a compound there is. It always has the same composition.

Can the ratio of elements for a given compound change?

If two elements combine in a different ratio, the result is a different compound. In other words, the same compound will always form from the same elements in the same ratio.

When the same elements combine to form different compounds they do so in mass ratios that can be expressed by small whole numbers this is known as?

law of multiple proportions, statement that when two elements combine with each other to form more than one compound, the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.

When two elements combine to form two or more compounds the mass of one element that combines with a given mass of the other element is in the ratio of small whole?

The law of multiple proportions states that when two elements react to form more than one compound, a fixed mass of one element will react with masses of the other element in a ratio of small, whole numbers.

Which element will be formed when carbon atom is combined with helium and Atom?

carbon atom + helium atom fusing to give an oxygen atom: 12C + 4He → 16O.

What is a representative element?

The representative elements are elements where the s and p orbitals are filling. The transition elements are elements where the d orbitals (groups 3–11 on the periodic table) are filling, and the inner transition metals are the elements where the f orbitals are filling.

What two elements combine to form ionic compounds?

Ionic compounds generally form between elements that are metals and elements that are nonmetals. For example, the metal calcium (Ca) and the nonmetal chlorine (Cl) form the ionic compound calcium chloride (CaCl2).

What happens to substances when they combine to form mixtures?

A mixture is created when two or more different substances are physically combined and can be separated back into its original substances. A chemical reaction occurs when two or more substances are combined to form a new substance and cannot be separated back into its original substances.

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