Which of the following statements describe a mixture? • A mixture does not contain a fixed ratio by mass of the component elements. • Chemical techniques are required to separate the components of a mixture. •both a and b •neither a nor b
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
Introduction
Mixtures in chemistry are formed when two or more different substances are combined together. The components of a mixture retain their individual properties and will not chemically react with each other. Mixtures can be a combination of solids, liquids, and gases, and can be classified into two main types: homogeneous and heterogeneous. Homogeneous mixtures are those in which the components are evenly distributed throughout the mixture, such as a solution of sugar in water. Heterogeneous mixtures are those in which the components are not evenly distributed, such as a bowl of cereal and milk. Mixtures can be separated into their components through a variety of methods, including filtration, evaporation, and distillation.
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