What does Descartes mean by substance and why does he think there are two kinds What are they and how does he distinguish between them?
Descartes believed in only two kinds of substance: material body, which is defined by extension, and mental substance, which is defined by thought, which, in this context, is more or less equivalent to consciousness.
What does Kant mean by substance?
Kant holds that matter alone, by being permanent, satisfies, in the field of appearance, the formal criterion of substance (being thinkable only as subject, never as predicate) and manifests itself empirically as substance through action.
What is a substance according to Descartes?
Descartes’ definitions can be paraphrased as follows: Substance: A thing whose existence is dependent on no other thing. Created Substance: A thing whose existence is dependent on nothing other than God.
What does Aristotle mean by substance?
Aristotle defines substance as ultimate reality, in that substance does not belong to any other category of being, and in that substance is the category of being on which every other category of being is based. Aristotle also describes substance as an underlying reality, or as the substratum of all existing things.
What is substance according?
Substance, according to Spinoza, is one and indivisible, but has multiple “attributes”. He regards an attribute, though, as “what we conceive as constituting the [single] essence of substance”. The single essence of one substance can be conceived of as material and also, consistently, as mental.
Which is a substance?
A substance is a chemical element and its compounds in the natural state or the result of a manufacturing process. In a manufacturing process, a chemical reaction is usually needed to form a substance. Chemical (A) and chemical (B) are put together and react to form the substance C.
What is the nature of a substance?
Nature of substances: Simple particles react faster than complex particles. In complex molecules more bonds have to be broken. This means more energy is needed to form the activated complex. Particles such as atoms or ions in solution react more quickly than complex molecules.
What is substance form and matter?
Matter underlies and persists through substantial changes. A substance is generated (destroyed) by having matter take on (lose) form. A house is created when bricks, boards, etc., are put together according to a certain plan and arranged in a certain form. It is destroyed when the bricks, boards, etc., lose that form.
What is substance give example?
Examples of pure substances include tin, sulfur, diamond, water, pure sugar (sucrose), table salt (sodium chloride) and baking soda (sodium bicarbonate). Crystals, in general, are pure substances. Tin, sulfur, and diamond are examples of pure substances that are chemical elements. All elements are pure substances.
What makes substance different from each other?
A chemical substance is composed of one type of atom or molecule. A mixture is composed of different types of atoms or molecules that are not chemically bonded. A heterogeneous mixture is a mixture of two or more chemical substances where the various components can be visually distinguished.
Why are substances different from each other?
Compounds, on the other hand, are made up of two or more different elements held together by chemical bonds and functioning as a unit. While compounds are also pure substances, they differ from elements because compounds can be broken down into simpler components (the elements that make up the compound).
What is substance Short answer?
Answer: A substance is a matter that has definite properties and composition. Every pure compound and element is a substance. Water, H2O, is a pure substance, a compound made of hydrogen and oxygen. Every pure substance is homogeneous.
What is difference between H * * * * * * * * * * and heterogeneous mixture?
1. A homogenous mixture is that mixture in which the components mix with each other and its composition is uniform throughout the solution. A heterogenous mixture is that mixture in which the composition is not uniform throughout and different components are observed.
Why is composition of chemicals different in every substance?
Chemical composition varies when chemicals are added or subtracted from a substance, when the ratio of substances changes, or when other chemical changes occur in chemicals.