Elements equations
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Elements are the building blocks of matter and everything around us. A chemical equation shows what occurs in a chemical reaction, such as the reaction of hydrogen and oxygen elements to form two water molecules, as represented by the equation 2H2 + O2 → 2H2O. The equation indicates that it takes two hydrogen molecules and one oxygen molecule to produce two water molecules in this chemical reaction.
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The document discusses key biology concepts related to cells and cellular processes. It defines that living things are made of cells, which are the basic unit of life that only come from other living cells. It also describes that plant cells have a cell wall and chloroplasts, while the cell membrane forms the outer boundary of the cell. The mitochondria produces energy for the cell and is known as the powerhouse of the cell. Diffusion and osmosis are types of passive transport that involve the movement of particles or water across the cell membrane from areas of higher to lower concentration.
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