QuestionApril 30, 2025

7. Label the following chemical reactions using the word bank: reactants, gaseous, solid product, heated, catalyst products, yields, subscript, coefficient 3H_(2)(g)+N_(2)(g)arrow 2NH_(3)(g) 2C_(6)H_(6)(l)+7O_(2)(g)arrow 4CO_(2)(g)+6H_(2)O(g) Zn(s)+2HCl(aq)arrow ZnCl_(2)(aq)+H_(2)(g)

7. Label the following chemical reactions using the word bank: reactants, gaseous, solid product, heated, catalyst products, yields, subscript, coefficient 3H_(2)(g)+N_(2)(g)arrow 2NH_(3)(g) 2C_(6)H_(6)(l)+7O_(2)(g)arrow 4CO_(2)(g)+6H_(2)O(g) Zn(s)+2HCl(aq)arrow ZnCl_(2)(aq)+H_(2)(g)
7. Label the following chemical reactions using the word bank: reactants, gaseous, solid product, heated, catalyst products, yields, subscript, coefficient 3H_(2)(g)+N_(2)(g)arrow 2NH_(3)(g) 2C_(6)H_(6)(l)+7O_(2)(g)arrow 4CO_(2)(g)+6H_(2)O(g) Zn(s)+2HCl(aq)arrow ZnCl_(2)(aq)+H_(2)(g)

Solution
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Answer

First Reaction: Reactants, Gaseous, Coefficient, Subscript, Yields, Products ### Second Reaction: Reactants, Liquid, Gaseous, Coefficient, Subscript, Yields, Products ### Third Reaction: Reactants, Solid, Aqueous, Gaseous, Coefficient, Subscript, Yields, Products Explanation 1. Identify Reactants and Products Reactants are substances on the left side of the arrow. Products are substances on the right side. - First reaction: Reactants are 3H_{2}(g) and N_{2}(g); Product is 2NH_{3}(g). - Second reaction: Reactants are 2C_{6}H_{6}(l) and 7O_{2}(g); Products are 4CO_{2}(g) and 6H_{2}O(g). - Third reaction: Reactants are Zn(s) and 2HCl(aq); Products are ZnCl_{2}(aq) and H_{2}(g). 2. Identify Coefficients and Subscripts Coefficients are numbers before chemical formulas indicating moles. Subscripts are small numbers within formulas indicating atoms. - First reaction: Coefficients are 3, 1, and 2; Subscripts are 2, 2, and 3. - Second reaction: Coefficients are 2, 7, 4, and 6; Subscripts are 6, 2, 2, and 2. - Third reaction: Coefficients are 1, 2, 1, and 1; Subscripts are 2, 2, and 2. 3. Identify Physical States Physical states are indicated by letters in parentheses: (g) for gaseous, (l) for liquid, (s) for solid, (aq) for aqueous. - First reaction: All reactants and products are gaseous (g). - Second reaction: C_{6}H_{6} is liquid (l), others are gaseous (g). - Third reaction: Zn is solid (s), HCl and ZnCl_{2} are aqueous (aq), H_{2} is gaseous (g). 4. Identify Other Terms "Yields" is represented by the arrow (\rightarrow). "Catalyst" and "Heated" are not explicitly shown in these reactions.

Explanation

1. Identify Reactants and Products<br /> Reactants are substances on the left side of the arrow. Products are substances on the right side.<br />- First reaction: Reactants are $3H_{2}(g)$ and $N_{2}(g)$; Product is $2NH_{3}(g)$.<br />- Second reaction: Reactants are $2C_{6}H_{6}(l)$ and $7O_{2}(g)$; Products are $4CO_{2}(g)$ and $6H_{2}O(g)$.<br />- Third reaction: Reactants are $Zn(s)$ and $2HCl(aq)$; Products are $ZnCl_{2}(aq)$ and $H_{2}(g)$.<br /><br />2. Identify Coefficients and Subscripts<br /> Coefficients are numbers before chemical formulas indicating moles. Subscripts are small numbers within formulas indicating atoms.<br />- First reaction: Coefficients are 3, 1, and 2; Subscripts are 2, 2, and 3.<br />- Second reaction: Coefficients are 2, 7, 4, and 6; Subscripts are 6, 2, 2, and 2.<br />- Third reaction: Coefficients are 1, 2, 1, and 1; Subscripts are 2, 2, and 2.<br /><br />3. Identify Physical States<br /> Physical states are indicated by letters in parentheses: (g) for gaseous, (l) for liquid, (s) for solid, (aq) for aqueous.<br />- First reaction: All reactants and products are gaseous (g).<br />- Second reaction: $C_{6}H_{6}$ is liquid (l), others are gaseous (g).<br />- Third reaction: $Zn$ is solid (s), $HCl$ and $ZnCl_{2}$ are aqueous (aq), $H_{2}$ is gaseous (g).<br /><br />4. Identify Other Terms<br /> "Yields" is represented by the arrow ($\rightarrow$). "Catalyst" and "Heated" are not explicitly shown in these reactions.
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