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What is the difference about matter and substance?
Matter refers to anything that has mass and occupies space, while substance is a specific type of matter with constant chemical composition. Matter can encompass both substances and mixtures, whereas substances are pure and have specific properties.
What stays constant in a chemical reaction?
In a chemical reaction, the total mass of the substances involved stays constant. This is known as the law of conservation of mass.
What is the homogeneous material with with a variable composition?
An example of a homogeneous material with a variable composition is a solution, where one or more substances are dissolved in another substance. The composition of a solution can vary depending on the amount of solute dissolved in the solvent.
What is the characteristic of a pure substance?
The defining characteristic of a pure chemical substance is that any sample of it contains the same elements in the same mass proportions to one another.
What is mixture and substance?
in chemistry, chemical substance is a form of matters that has constant chemical composition and characteristic properties.it cannot be separated into components by physical separation methods. mixtures are the product of mechanical blending or mixing of chemical substance like elements and compounds ,without chemical bonding or other chemical change.
What is the difference between a chemical reaction and a chemical composition?
when 2 or more compounds react chemically to form a new compound then it is called chemical reaction chemical reaction whereas the quantity and no. chemical elements presents in chemical compound is called the chemical composition
What are facts about pure substances?
cannot be separated into 2 or more substances by physical or mechanical meansis homogeneous, ie, has uniform composition throughout the whole sampleits properties are constant throughout the whole sampleits properties do not depend on how it is prepared or purifiedhas constant chemical composition
Is the sun's chemical composition constant or is it continuously changing?
As a result of the thermonuclear reactions in the Sun the chemical composition is variable.
What is the definition of pure substances?
A pure substance is a substance that consists solely of the same atoms/molecules.So a volume of water that contains only H2O is a pure substance. A block of iron that contains only Fe atoms is pure substance. A pure substance can be composed of atoms or molecules as I said before BUT they have to be exactly the same.A substance that has constant chemical composition and characteristics
What is the similarties between mixture and substance?
A substance has constant and definitive composition Mixture is combinations of pure substances that have no constant and definitive composition: homogeneous mixture, heterogeneous mixture
What stays constant in a chemical reaction?
In a chemical reaction, the total mass of the substances involved stays constant. This is known as the law of conservation of mass.
What is the difference about matter and substance?
Matter refers to anything that has mass and occupies space, while substance is a specific type of matter with constant chemical composition. Matter can encompass both substances and mixtures, whereas substances are pure and have specific properties.
What are 2 pure substances?
A pure substance is a homogeneous chemical substance which means its composition is constant and its properties are consistent too. Some examples of this kind of substances are water, baking soda and sucrose.
What Hemostasis is?
Hemostasis means control of bleedingit is constant internal chemical composition
What characteristics of water remains the same no matter what is dissolve in it?
The chemical composition of water remain constant.
What is the homogeneous material with with a variable composition?
An example of a homogeneous material with a variable composition is a solution, where one or more substances are dissolved in another substance. The composition of a solution can vary depending on the amount of solute dissolved in the solvent.
Is a chemical substance the same as a chemical?
A chemical substance is a chaste (pure) for of matter that has a constant chemical composition. A chemical in general is some type of chemical compound, like some type of molecule.
