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What is the study of the mass relationships of elements in compounds?
Wiki User
∙ 8y ago
You think to chemical compostion or to stoichiometry.
Sherwood Ritchie
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What Elements combine in fixed mass ratios to form compounds This must mean that elements?
Elements are composed of discrete units called atoms.
What is true about molecular compounds?
Two or more elements are chemically bonded.
What did Dalton find out about the atom?
1. Most natural materials are mixtures of pure substances 2. Pure substances are either elements or combinations of elements called compounds. 3. A given compound always contains the same proportions by mass of the elements.
Mass number of first 20 elements?
Mass number is term used for isotopes, not for elements. And it is boring to list here all the isotopes of the first 20 elements.
What are four unique characteristics of a compound?
it is a made up of two simple sentences joined together
Which makes up most------single elements or compounds?
In terms of the total mass of the universe, it is single elements.
What Elements combine in fixed mass ratios to form compounds This must mean that elements?
Elements are composed of discrete units called atoms.
Have mass and takes up space is it an element or compound or both?
Both elements and compounds have mass and volume (take up space).
Does a compound have weight and take up space?
No because elements and compounds can have the same mass and volume.
Laws of chemical conbination?
The laws of chemical combination are fundamental principles that govern the relationships between the quantities of reactants and products in a chemical reaction. The three main laws are the law of conservation of mass, the law of definite proportions, and the law of multiple proportions. The law of conservation of mass states that mass is conserved in a chemical reaction, meaning that the total mass of the reactants is equal to the total mass of the products. The law of definite proportions states that a compound always contains the same proportions of elements by mass. The law of multiple proportions states that when two elements combine to form multiple compounds, the mass ratios of the elements in the compounds are always in whole-number ratios.
What is true about molecular compounds?
Two or more elements are chemically bonded.
Why did Mendeleev arrange elements in periods?
He arranged the elements in the increasing order of atomic mass and repeating properties so that it is easy to study the properties / reactivities of the elements.
Does the compounds C2H2 and C6H6 have the same percent composition by mass?
It does not necessarily mean that. For example glucose (C6H12O6) and formaldehyde (CH2O) have the same percentages of elements by mass, but are two very difference compounds.
What elements is neon often combined with?
None in chemical compounds. There are some transient charged species observed in mass spectra, such as (NeH)+
How much does silicone cost per meter?
Most elements or compounds are not sold by the meter. They are sold either by volume, or by mass (or weight).
What law is when two elements combine to form two or more compounds a given mass of the element?
This process illustrates both the "Law of Conservation of Mass" and the "Law of Constant Proportions".
Elements are composed of atoms and compounds are composed of?
Elements are atoms, atoms are elements. Elements are not larger objects made up of smaller things (atoms). Elements are specific species' atoms, which have a specific atomic mass which gives rise to the characteristics of the element. Compounds are composed of elements. It is important to note the difference between a compound and a molecule; the words, although often used interchangeably, have aspecific meaning in chemistry. A molecule is a certain type of compound in which the elements have bonded covalently. As such, all compounds are not molecules, but all molecules are compounds.
