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It is true for all compounds Composition of ionic compounds Which is NOT true of compounds Which is?
The statement that all compounds have a composition of ionic compounds is false. Many compounds can be covalent in nature, where atoms share electrons instead of transferring them. On the other hand, it is true that compounds have a definite composition with fixed ratios of elements and compounds are formed by the bonding of two or more different elements.
Explain how your class's results in this experiment support the law of definite composition?
The law of definite composition states that a compound will always have the same proportion of elements by mass regardless of the source or how it was prepared. In the experiment, if the class obtained consistent results in terms of the mass of elements present in the compound, it would support this law. This consistency would demonstrate that the compound was formed with a fixed ratio of elements, reinforcing the idea that compounds have a definite composition.
Does fluorite have a definite chemical composition?
Yes, fluorite has a definite chemical composition: it is a calcium fluoride mineral with the chemical formula CaF2.
Does compound have a fixed composition?
Yes, compounds have a fixed composition because they are made up of a specific ratio of different elements bonded together in a precise manner. This fixed composition gives compounds specific properties and characteristics that are different from the individual elements that make them up.
What is the definition of a definite chemical composition?
Definite chemical composition is when a mineral is made of the same material throughout. Basically when a mineral is only made of one material all the way through, not part iron in one part and then gold in the rest.
Is the law of definite composition applicable to compounds only?
This law is not valid for all chemical compounds (ex. nonstoichiometric compounds).
Does a mixture obey the law of definite composition?
Yes, a mixture does not obey the law of definite composition. Mixtures can have varying proportions of different substances, whereas compounds, which obey the law of definite composition, have a fixed ratio of elements.
What you mean by nonstoichiometry?
The chemical composition of nonstoichiometric compounds do not respect the law of definite proportions.
Is it true that a chemical has a definite composition?
Yes, after the Law of definite proportions; but now it is clear that this law is not applicable to all known chemical compounds.
Do compounds have variable composition?
No. Compounds have a definite composition, therefore they are pure substances. For example, water always has the formula H2O, sodium chloride (common table salt) always has the formula NaCl, and glucose (blood sugar) always has the formula C6H12O6.
It is true for all compounds Composition of ionic compounds Which is NOT true of compounds Which is?
The statement that all compounds have a composition of ionic compounds is false. Many compounds can be covalent in nature, where atoms share electrons instead of transferring them. On the other hand, it is true that compounds have a definite composition with fixed ratios of elements and compounds are formed by the bonding of two or more different elements.
What do you call a material with definite properties and definite chemical composition?
A material with definite properties and definite chemical composition is called a pure substance.
36 A naturally occurring solid inorganic substance with a definite chemical composition?
A mineral is a naturally occurring solid inorganic substance with a definite chemical composition. Minerals are typically formed through various geological processes and can be found in different environments on Earth. They can range in composition from simple elements to complex compounds.
What has a definite composition?
Solids
Do solutions have a definite composition?
Definite proportions, not indefinite proportions. What it says is that the composition of a compound is the same regardless of its state. For instance: Water is 11.1% hydrogen and 88.9% oxygen by mass. If I were to freeze water into ice, its composition would be 11.1% hydrogen and 88.9% oxygen by mass. If I were to vaporize the water into steam, its composition would be 11.1% hydrogen and 88.9% oxygen by mass. If I were to take ice, melt it, use an electrical current to electrolyze it into hydrogen gas and oxygen gas, burn them together to form water, flash freeze the resulting water to a temperature of -200 oC, it would still have a composition that is 11.1% hydrogen and 88.9% oxygen by mass. That is what the law of definite proportions tells you.
The scientific statement that says that compounds always have exactly the same composition by mass is?
The law of definite proportions states that compounds always contain the same elements in the same proportion by mass. This means that the ratio of elements in a compound is consistent and does not change.
Is vineger a mixture compound or element?
Vinegar is a mixture of compounds and water.
