1. In a balanced equations, each side of the equation has the same (a) coeffcients (b) number of subscripts (c) number of each type pf atom (d) coeffcient for each type of atom or molecules

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Chapter1: Chemical Foundations
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1. In a balanced equations, each side of the equation has the same

(a) coeffcients

(b) number of subscripts

(c) number of each type pf atom

(d) coeffcient for each type of atom or molecules


2. the products in a reactions will always have

(a) the same total mass as the reactants

(b)the same number of molecules as the reactants

(c) less mass than the reactants

(d) a greater number of molecules than the reactants

3. True or fasle, rewirte it to make it true.
To balance a chemical quation, only the subscripts of a reactant and product can be changes

Match each equation on the left with the most appropriate description on the right.
Naci + H,0
(i) synthesis reaction
5.
(a) HCI + NaOH
(b) Cu + 2AGNO, → Cu(NO,), + 2Ag (i) single displacement reaction
(c) NH, + HCI → NH,CI
(d) 2H,0 2H, + O,
(iii) double displacement reaction
(iv) decomposition reaction
Transcribed Image Text:Match each equation on the left with the most appropriate description on the right. Naci + H,0 (i) synthesis reaction 5. (a) HCI + NaOH (b) Cu + 2AGNO, → Cu(NO,), + 2Ag (i) single displacement reaction (c) NH, + HCI → NH,CI (d) 2H,0 2H, + O, (iii) double displacement reaction (iv) decomposition reaction
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