substance
Fixed composition refers to a mixture where the components are present in a specific and unchanging ratio. This means the proportion of each component in the mixture remains constant regardless of the amount of the mixture present. Fixed composition is often found in chemical compounds where the elements are combined in a defined ratio.
Matter that has the same composition and properties throughout is called a substance. Substances can be classified into elements, which consist of only one type of atom, and compounds, which are made up of two or more different elements chemically combined in fixed proportions. Unlike mixtures, which can vary in composition, substances maintain consistent characteristics and behavior.
False. The composition of a compound is fixed, meaning it always contains the same elements in the same proportions. In contrast, the composition of a mixture can vary, as it is a physical combination of substances that can be in different proportions.
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.
A fixed mixture is a combination of substances that always maintains the same composition and properties throughout. The components of a fixed mixture are evenly distributed and cannot be separated by physical means like filtration or distillation. Examples include alloys like bronze and solutions like salt water.
Composition & inheritance are totally different from each other. Composition means to compose the properties by code of same class. In composition we can refer to some other class who hold the same properties but we have to code, we can not directly use that code ,we have to rewrite . Whereas in Inheritance, whenever a class uses the properties of another class and that class has its own properties too then the process of accessing the properties of another class is known as Inheritance... If we think as real life example, If we are inspired by someone, we adore the properties of that person then we add that quality of person in ourselves ,that is composition. But some quality of our parent are automatically in us there is no need to strive, that is inheritance. (sdrishti7@gmail.com)
A substance that has the same composition or is made of the same kind of atoms is called a pure substance. Examples include elements like gold or oxygen, which consist entirely of one type of atom, and compounds like water (H₂O), which is made up of hydrogen and oxygen atoms in a fixed ratio. Pure substances have consistent properties and uniform composition throughout.
The answer is a Homogeneous mixture
called: Compound.
No, not all mineral oil is the same in terms of its composition and properties. Different grades of mineral oil can vary in purity, viscosity, and other characteristics.
skeet
I am not 100% sure, but i believe variable composition is when the composition of a mixture can vary, or contain different properties, elements/compounds... etc. An example of variable composition would be a heterogeneous mixture, which has no uniform way of being composed. Where as its opposite, a homogeneous mixture, has a set composition of the same properties, elements/compounds... etc. and can be recreated.