0
What is the name for two elements that are cheically combined in definite proportions?
Wiki User
∙ 15y ago
Compounds.
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
What person's experiments showed that elements combined in definite and constant proportions?
John Dalton
How are compounds diffident from mixtures?
Compounds are composed of atoms of different elements chemically bonded in definite proportions. The components of mixtures are not chemically combined and they do not have definite proportions.
Is a compound a substance of two or more elements bounded together in definite proportions?
A compound is a substance of two or more elements bounded together in definite atomical proportions
A combination of two or more elements in definite proportions?
compounds
Does a mineral contains certain elements in definite proportions?
Yes
Does a mineral always contain certain elements in definite proportions?
Yes
State the law of definite proportions?
The law of definite proportions states that all chemical compounds have constant proportions of their components.
What is the law that states that a chemical compound always contains the same elements in exactly the same proportions by w eight and mass?
Law of definite proportion, sometimes also called the law of constant composition.
Is it that a mineral always contains certain elements in definite proportions?
yes, it is true!
What is the chemical combination of two or more elements in definite proportions?
This is a chemical compound.
When geologist say that a mineral always contains certain elements in the definite proportions they mean that the mineral has a definite?
A chemical formula.
Can the proportions of magnesium and oxygen in magnesium oxide be changed?
No. Magnesium oxide, MgO, is a compound, which means it is a pure substance, in which the magnesium and oxygen are present in definite proportions, in this case 1:1. This is in accordance to the law of definite proportions, which states that every pure substance always contains the same elements combined in the same proportions by weight. Also, magnesium ions have a charge of 2+ and oxide ions have a charge of 2-, so that one magnesium ion combined with one oxide ion balances to an overall charge of zero.
