The question requires to balance the equation.
The equation is already balanced, so the answer is:
<span>Ca(s)+Br2(l)⟶CaBr2(s)
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</span><span>Explanation:
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</span><span>1) The phases are identified with a letter to the right of the compound or element:
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</span><span>So, for Ca, the phase is (s) which means solid.
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</span><span>For Br₂ (l) the phase is (l) which means liquid.
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</span><span>For CaBr₂(s) the phase is (s) which means solid.
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</span><span>2) The core work of balancing is make the number of atoms of each element on the reactants equal to the same number of atoms on the products side.
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</span><span>That is the law of conservation of mass applied to chemcial reactions.
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</span><span>3) So, you have to add coefficientes on the right place to make the number of atoms on the left side equal to the number of the same kind of atom on the right side.
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</span><span>In this table you can verify that the equation given is balanced:
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</span><span>atom left side right side
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</span><span>Ca 1 1
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</span><span>Br 2 2
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</span><span>So, you do not need to modify any coefficients.
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Answer:
Oxidation is defined as the chemical process in which substance loses electron and hydrogen or gain oxygen while in the process of reduction, substance gains electron and hydrogen or loses oxygen.
So, from the given equation:
a. It is an oxidation reaction as Rb loses one elctron.
b. It is a reduction reaction as Te gains two electrons and become Te2-
c. It is a reduction reaction as H atom gains electrons.
d. It is an oxidation reaction as P loses 3 electrons.
<span>The atom is the smallest unit of matter of a chemical element that maintains its identity or its properties in smaller particles. Atoms are indestructible and retain their identity in chemical changes. This happens in a chemical reaction and this element is a small particle that supports changes in chemical reactions.</span>
