Why is respiration considered an exothermic reaction ? Explain.
Why is respiration considered an exothermic reaction ? Explain.
Energy is required to support life. Energy in our body is obtained from the food we eat. During digestion, large molecules of food are broken down the cells and provides energy. The special name of this combustion reaction is respiration. Since energy is released in the whole process, it is an exothermic process.
$\underset{Glucose}{\mathop{{{C}_{6}}{{H}_{12}}{{O}_{6(aq)}}}}\,+\underset{~Oxygen~}{\mathop{6{{O}_{2(g)}}}}\,\to \underset{Carbon\text{ }dioxide}{\mathop{6C{{O}_{2(g)}}}}\,+\underset{Water}{\mathop{6{{H}_{2}}{{O}_{(l)}}}}\,$ $+$ Energy
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Oil and fat containing food items are flushed with nitrogen. Why ?
Oil and fat containing food items are flushed with nitrogen. Why ?
Why are decomposition reactions called the opposite of combination reactions? Write equations for these reactions.
Why are decomposition reactions called the opposite of combination reactions? Write equations for these reactions.
Explain the "Reduction'' in terms of gain or loss of oxygen with two examples.
Explain the "Reduction'' in terms of gain or loss of oxygen with two examples.
What is the difference between displacement and double displacement reactions ? Write equations for these reactions.
What is the difference between displacement and double displacement reactions ? Write equations for these reactions.
Write the balanced chemical equations for the following reactions.
$(a)$ Calcium hydroxide $+$ Carbon dioxide $\rightarrow$ Calcium carbonate $+$ Water
$(b)$ Zinc $+$ Silver nitrate $\rightarrow$ zinc nitrate $+$ Silver
$(c)$ Aluminium $+$ Copper chloride $\rightarrow$ Aluminium chloride $+$ Copper
$(d)$ Barium chloride$+$ Potassium sulphate $\rightarrow$ Barium sulphate $+$ Potassium chloride
Write the balanced chemical equations for the following reactions.
$(a)$ Calcium hydroxide $+$ Carbon dioxide $\rightarrow$ Calcium carbonate $+$ Water
$(b)$ Zinc $+$ Silver nitrate $\rightarrow$ zinc nitrate $+$ Silver
$(c)$ Aluminium $+$ Copper chloride $\rightarrow$ Aluminium chloride $+$ Copper
$(d)$ Barium chloride$+$ Potassium sulphate $\rightarrow$ Barium sulphate $+$ Potassium chloride