Chemistry
A chemistryist is a term that does not exist. However, a chemist is a scientist who specializes in the study of the composition, structure, properties, and reactions of matter.
The term for matter having indefinite composition and variable properties is a mixture. Mixtures can be homogeneous (uniform composition) or heterogeneous (non-uniform composition).
In science, a substance is defined as a type of matter that has a constant composition and distinct properties. Substances can be elements, compounds, or mixtures.
anything which has mass and occupies space
I believe you meant to ask about the term heterogeneous. Heterogeneous refers to a composition or structure that consists of different elements or parts that are not uniform or similar in nature. This term is commonly used in chemistry, physics, and biology to describe materials or systems with varying properties or components.
The term for matter having indefinite composition and variable properties is a mixture. Mixtures can be homogeneous (uniform composition) or heterogeneous (non-uniform composition).
A chemistryist is a term that does not exist. However, a chemist is a scientist who specializes in the study of the composition, structure, properties, and reactions of matter.
heterogeneous mixture
physical properties
term for that is pure substance
In science, a substance is defined as a type of matter that has a constant composition and distinct properties. Substances can be elements, compounds, or mixtures.
Physical science - encompasses the branches of natural science and science that study non-living systems, in contrast to the life sciences. However, the term "physical" creates an unintended, somewhat arbitrary distinction, since many branches of physical science also study biological phenomena.
The term gas can not be used to identify a mixture that has the same composition throughout. Gas is a state of matter.
Chemistry is the study of matter and its interactions at the molecular and atomic level, focusing on the composition, structure, properties, and changes of substances. Physics is the study of matter and energy and the relationships between them, focusing on the fundamental principles that govern the natural world, such as motion, forces, and energy. Physics deals with understanding the fundamental laws of nature, while chemistry focuses on the composition and behavior of matter.
something about matter color and mass
pharmacology
anything which has mass and occupies space