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Why do elements join to form compounds in specific ratios?
Elements combine according to the electrons in their outer shell. These allow only certain combinations which form a ratio. Oxygen has 2 + in its outer shell. Hydrogen has 1 - in its outer shell. So the ratio is always 2:1.
What are the three laws governing chemical reactions?
The three fundamental laws of chemistry is the following:A. Law of conservation of mass- mass is neither created nor destroyed during an ordinary chemical reaction or physical reaction.B. Law of definite porportions- a chemical compound contains the same elemtents in exactly the same proportions by mass regardless of the sample of the source of the compound.C. Law of multiple proportions- if two or more different compounds are composed of the same two elements, then the ratios of the masses of the second element, combined with a certain mass of the first element is always a ratio of small whole numbersbln
What are the elements present in Bronze.?
Bronze is primarily composed of copper and tin, with varying proportions of each depending on the specific type of bronze being produced. Other elements, such as aluminum, silicon, and phosphorus, may also be present in trace amounts to enhance certain properties of the bronze alloy.
Which state of matter has no definite shape but definite volume?
The state of matter that has no definite shape but a definite volume is a liquid.Liquid has definite volume but no shape. It assumes the shape of the vessel in which it is kept.All liquids have a definite volume given a particular fixed temperature.for example, water. it has no definite shape but a definite volume under a given temperature.no matter that has no shape and a definite volume exists.as the temperature is decreased, the molecules in a substance lose energy and they come closer and thus the volume decreases. but when it is heated, the molecules gain energy and move around hitting each other and moving farther and farther still. thus the volume increases on heating.Added:Liquid has NO definite shape but certaily (YES) a definite volume.This volume is not depending on temperature in the sense of not being 'defined' (as erroneously stated above).Its (defined) volume is determined by the amount and kind of matter and depending on (not defined by) temperature.(This means that it has not a constant value for a certain amount of liquid, but it is still a definite volume, meaning that, at each temperature a certain volume is 'defined' for a certain amount of liquid (defined is a derived word from 'definite').
How would changing the proportions of substances in an alloy change its properties?
Changing the proportions of substances in an alloy will change the physical properties of that alloy. The differing substances will change the metallic structure of the crystals of the metal alloy, and this alters the ductility, durability, hardness, tensile strength, toughness and other characteristics we assess are regards alloys.
Does a mineral contains certain elements in definite proportions?
Yes
Is it that a mineral always contains certain elements in definite proportions?
yes, it is true!
Is there fowlloing sentence true or false?
A mineral always contains certain elements in definite proportions
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.
Does a mineral always contain certain elements in definite proportions?
No, a mineral does not always contain certain elements in definite proportions. While minerals have a specific chemical composition, the proportions of elements can vary within certain limits and still be considered the same mineral.
When geologists say that a mineral always contains certain elements in definite proportions they mean that the mineral always has what?
When geologists say that a mineral always contains certain elements in definite proportions, they mean that the mineral always has a specific chemical composition. This composition is a key characteristic that helps identify and classify minerals. Minerals are composed of specific elements arranged in a precise crystal lattice structure.
Is the sentence true or false each piece of mineral has the same crystal structure?
that question iz absolutely trueFalse
Does a mineral always contain certain elements definite composition?
yes
What do scientists use to calculate the age of an object by measuring the proportions of the radioactive isotopes of v equals certain elements?
See the link below.
Why do elements join to form compounds in specific ratios?
Elements combine according to the electrons in their outer shell. These allow only certain combinations which form a ratio. Oxygen has 2 + in its outer shell. Hydrogen has 1 - in its outer shell. So the ratio is always 2:1.
Who wrote the law of definite proportions and Law of multiple proportions?
The Law of Multiple Proportions was developed by John Dalton based on the Law of Definite Proportions, was part of what laid the groundwork for his atomic theory, and for the basis of chemical formulas for compounds.English chemist John Dalton
What do Chemical composition describes?
"chemical composition" is talking about the individual chemicals that make up a substance. The chemicals it is composed of. eg, wood is mainly carbon, with some water (which is hydrogen and oxygen) and various minerals.
