I believe it is drugs. but don't count on this answer to much.
each substance has a density that differ from the densities of other substance.
This is a typical chemical reaction.
This substance is called solvent,.
Correct; a chemical change produces a new substance, or in other words, an existing substance changes into a different substance.
The kinds of changes in substances that are always physical changes are changes in the state. This is the change from solid, to liquid and then to gas and the reverse.
chemical change
A normal leaf is assigned some specific functions i.e. Photosynthesis and transpiration. When a leaf is performing some functions other than these two then it needs to have some structural changes in itself. The leaves which are performing these additional functions having changed their looks are called as modified leaves.
Solvent
the way a substance reacts with other substances is called
This is a fancy way to refer to two basic things: symptoms of intoxication, and evidence of substance withdrawal. Paraphrased from DSM-IV-TR:The reversible behaviors and physiological changes that happen due to the recent ingestion of or exposure to a substance is called intoxication. Different substances may produce intoxications that appear very similar to each other, or that appear very different.The behaviors and physiological changes that happen when a substance is stopped or reduced after heavy and prolonged use is called withdrawal. The changes cause significant distress or impairment in functioning.In both of the above, the behaviors and changes are NOT caused by an underlying medical condition, and are NOT accounted for by a mental disorder.
Physiological effects refer to changes in the body's functions or processes in response to external or internal factors. This can include changes in heart rate, blood pressure, hormone levels, and other bodily functions.
It is because when a substance is oxidized, it loses electrons which are taken up by other so that is gets reduced.This is why it is called reducing agent. Similarly, the substance reduced is called oxidizing agent.