The density of platinum (Pt) is 21.5 g/cm³ and the density of gold (Au) is 19.3 g/cm³. Two rings of equal volume, one made of Au and one made of Pt are placed into equal volumes of water in separate graduated cylinders.The volume reading for the graduated cylinder with platinum will the volume reading for the graduated cylinder with gold. be O more than. the same as O less than
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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