Batteries are portable devices that can produce loctric current. The electric current produced by a battery is due to the chemical reaction that occurs inside it. A classic example of a battery is the Daniel cel, named after the scientist who invented it. The Daniel coll makes use of ind metal and its ions in conjunction with copper metal and its ions. Electrons that are produced due to the chemical reaction are transferred from the zinc metal to the copper metal through a conducting wire producing the electric current Complete the following statements that relate to the fact that energy is conserved in a Daniel cell. Drag the appropriate labels to their respective targets. View Available Hints) Reset Help chemical 1. In a Daniel cell _____ energy is stored in the zinkrod. the copper rod, and their solutions electrical 2. In a Daniel cell, the ____ energy is converted into electrical energy 3. The glowing of the bulb indicates that _____ energy is produced 4. The flow of electrons through the wire produces _____ energy
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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