Answered

IDNLearn.com provides a reliable platform for finding accurate and timely answers. Our community is here to provide the comprehensive and accurate answers you need to make informed decisions.

Which equation has both a liquid and a gas as products?

A. [tex]2 \text{HgO (s)} \rightarrow 2 \text{Hg (l)} + \text{O}_2 \text{(g)}[/tex]
B. [tex]2 \text{Mg (s)} + \text{O}_2 \text{(g)} \rightarrow 2 \text{MgO (s)}[/tex]
C. [tex]2 \text{KClO}_3 \text{(s)} \rightarrow 2 \text{KCl (s)} + 3 \text{O}_2 \text{(g)}[/tex]
D. [tex]\text{Mg (s)} + 2 \text{HCl (aq)} \rightarrow \text{H}_2 \text{(g)} + \text{MgCl}_2 \text{(aq)}[/tex]

Sagot :

GinnyAnsweridn
To determine which chemical equation has both a liquid and a gas as products, let's analyze each given equation one by one:

1. Equation 1:
```
2 HgO ( s ) → 2 Hg ( l ) + O_2 ( g )
```
- The reactant [tex]\( HgO \)[/tex] is solid (s).
- The products are [tex]\( Hg \)[/tex], which is liquid (l), and [tex]\( O_2 \)[/tex], which is gas (g).
- This equation has both a liquid and a gas as products.

2. Equation 2:
```
2 Mg ( s ) + O_2 ( g ) → 2 MgO ( s )
```
- The reactants [tex]\( Mg \)[/tex] and [tex]\( O_2 \)[/tex] are solid (s) and gas (g), respectively.
- The product [tex]\( MgO \)[/tex] is solid (s).
- This equation does not have both a liquid and a gas as products.

3. Equation 3:
```
2 KClO_3 ( s ) → 2 KCl ( s ) + 3 O_2 ( g )
```
- The reactant [tex]\( KClO_3 \)[/tex] is solid (s).
- The products are [tex]\( KCl \)[/tex], which is solid (s), and [tex]\( O_2 \)[/tex], which is gas (g).
- This equation does not have both a liquid and a gas as products.

4. Equation 4:
```
Mg ( s ) + 2 HCl ( aq ) → H_2 ( g ) + MgCl_2 ( aq )
```
- The reactants [tex]\( Mg \)[/tex] and [tex]\( HCl \)[/tex] are solid (s) and aqueous (aq), respectively.
- The products are [tex]\( H_2 \)[/tex], which is gas (g), and [tex]\( MgCl_2 \)[/tex], which is aqueous (aq).
- This equation does not have both a liquid and a gas as products.

After analyzing all four equations, only the first equation has both a liquid and a gas as products. Therefore, the correct equation is:
```
[tex]$2 HgO ( s ) \rightarrow 2 Hg ( l ) + O_2 ( g )$[/tex]
```
Thus, the answer is the first equation, and its index (starting from 0) is:
```
0
```
We appreciate your contributions to this forum. Don't forget to check back for the latest answers. Keep asking, answering, and sharing useful information. Discover the answers you need at IDNLearn.com. Thanks for visiting, and come back soon for more valuable insights.