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What are the characteristic of pure substances?
The characteristics of pure substances are:fixed melting pointfixed boiling pointsfixed valencyfixed densitystability
Which is a property of a pure substance uniform composition fixed composition varying composition?
A property of a pure substance is fixed composition. This means that the substance is made up of only one type of molecule or atom throughout, with no variation in its chemical composition.
What does having a fixed composition mean?
Having a fixed composition means that a substance always contains the same elements in the same proportion by mass. This characteristic is a defining feature of pure substances like elements and compounds.
Why can't mixtures be classified as pure substance?
Mixtures are made up of two or more different substances physically combined, so they do not have a fixed composition or properties. In contrast, pure substances are made up of only one type of substance with a definite composition and characteristic properties. This distinction means that mixtures cannot be classified as pure substances.
What are the 2 types of substances?
I'm a bit confused on the question, there are alot more than two types of substances in existence. If your asking about the Reactivity of substances they are broken into two categories, Acids and Bases. Acids have a ph of 6 or lower. Bases have a ph of 8 or higher. Neutrals have a ph of 7. A neutral is eather pure, clean water, or a mixture of both acid and base that balance out the ph of the substance.
What are the characteristic of pure substances?
The characteristics of pure substances are:fixed melting pointfixed boiling pointsfixed valencyfixed densitystability
What is composed of one type compound?
A pure substance is composed of only one type of compound. Pure substances have a fixed composition and distinct chemical properties.
Which is a property of a pure substance uniform composition fixed composition varying composition?
A property of a pure substance is fixed composition. This means that the substance is made up of only one type of molecule or atom throughout, with no variation in its chemical composition.
What does having a fixed composition mean?
Having a fixed composition means that a substance always contains the same elements in the same proportion by mass. This characteristic is a defining feature of pure substances like elements and compounds.
What has a fixed composition and is always homogeneous?
A compound has a fixed composition and is always a homogeneous pure substance.
How are pure substances like mixtures?
Pure substances are different from mixtures in that they have a fixed composition and uniform chemical properties throughout. In contrast, mixtures are combinations of two or more substances that can vary in composition and may have varying properties at different parts of the mixture.
Is potassium bromide a pure substances?
This is an ionic compound and if it is not mixed in solution or found with other substances, it is pure.
Why can't mixtures be classified as pure substance?
Mixtures are made up of two or more different substances physically combined, so they do not have a fixed composition or properties. In contrast, pure substances are made up of only one type of substance with a definite composition and characteristic properties. This distinction means that mixtures cannot be classified as pure substances.
What are the 2 types of substances?
I'm a bit confused on the question, there are alot more than two types of substances in existence. If your asking about the Reactivity of substances they are broken into two categories, Acids and Bases. Acids have a ph of 6 or lower. Bases have a ph of 8 or higher. Neutrals have a ph of 7. A neutral is eather pure, clean water, or a mixture of both acid and base that balance out the ph of the substance.
What is matter in which the composition is not fixed?
Matter in which the composition is not fixed is known as a heterogeneous mixture. In such mixtures, the individual components can be physically separated and have varying proportions. Examples include salad, sand and gravel, or air with varying pollutants. Unlike pure substances, the properties of heterogeneous mixtures can change based on their composition.
Why elements and compounds are pure substances?
Elements are pure substances because they are made up of only one type of atom. Compounds are pure substances because they are made up of two or more elements chemically bonded together in fixed ratios, giving them a unique set of physical and chemical properties. Both elements and compounds maintain a consistent composition, making them pure substances.
What is any type of matter with a fixed composition?
This looks like a pretty basic question, although asked out of context, it is tricky. The same composition is called "definite" composition. The more technical term should make us think of the classification of matter. Pure substances have definite composions as opposed to mixtures that have variable composition. Your answer is pure substances. Pure substances can be either compounds, made of 2 or more kinds of atoms or elements make of 1 kind of atom.
