The boiling point of a substance is the temperature at which it can change its state from a liquid to a gas throughout the bulk of the liquid. A liquid may change to a gas at temperatures below the ...

Substances can exist in three states of matter - solid, liquid and gas. Substances can change states. To change the state of a substance energy must be transferred to, or from, the substance. Phew! On ...

Before we can answer that question, we need to know first: What is a solid? What’s a liquid? What’s a gas? These three materials behave in terms of the tiny particles of which they’re made. Solids, ...

The purpose of this article is to provide a simple explanation of these terms for those who desire a concise understanding as well as a review for those who understand the terms but want to take ...

IN attempts to relate the toxicity of physiologically active substances to their chemical constitution or physical properties, it has been the custom to use as comparative indexes of toxicity the ...