There samples of the same metal are weighed and their masses are found to be 42.02 g.44.653 g, and 44.16g. The corresponding volumes are 455 ml., 5.11 ml., and 4.84 m., respectively. Determine the density, d. of the metal and calculate the standard deviation of the density. d= The densities of several metals are given in the table. Metal dem glemt Which of the metals could the sample be? g/cm³
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.
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