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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.
Which is not a property of a pure substance uniform composition varying composition fixed composition?
The property that is not characteristic of a pure substance is "varying composition." A pure substance has a fixed composition, meaning it has a consistent and definite chemical makeup throughout. In contrast, substances with varying composition are mixtures, which can contain different amounts and types of components.
Which is not a property of a pure substance fixed composition uniform composition varying composition?
A pure substance has a fixed composition and uniform composition, meaning it consists of only one type of particle and its properties do not change regardless of the sample size. Therefore, varying composition is not a property of a pure substance, as it implies the presence of multiple substances or mixtures.
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.
Matter that can vary in composition is called a what?
Matter that can vary in composition is called a mixture. Mixtures can consist of two or more substances that retain their individual properties and can be separated by physical means. Examples include air, salad, and sand and salt. Unlike pure substances, mixtures do not have a fixed composition.
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.
