Question

Please answer this.
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Answer 1

Answer:

1. (!) Electricity – Two examples of static electricity are lightning and rubbing your feet on the carpet and then touching a doorknob. Current electricity is a constant flow of electrons. There are two kinds of current electricity: direct current (DC) and alternating current (AC). With direct current, electrons move in one direction.(!!)Heat – Heat is the form of energy that is transferred between systems or objects with different temperatures (flowing from the high-temperature system to the low-temperature system). Also referred to as heat energy or thermal energy. Heat is typically measured in Btu, calories or joules.(!!!) Light Energy – There are many example we see in our routine life carrying light energy like lightened candle, flash light, fire, Electric bulb, kerosene lamp, stars and other luminous bodies etc. Each act as a source of light.
2. Copper can displace silver from silver nitrate is a correct statement because copper is more reactive than silver and lies above silver in reactivity series.
3. 6CO2 + 6H2O — > C6H12O6 + 6O2. Generally, photosynthesis utilizes light vitality to change over carbon dioxide into a starch.
4. Types of Chemical Reactions - The five basic types of chemical reactions are combination, decomposition, single-replacement, double-replacement, and combustion. Analyzing the reactants and products of a given reaction will allow you to place it into one of these categories.