How would you write skeleton equations for these reactions? I am very confused
Hydrogen iodide(G)= Hyrdrogen(G)+Iodide(G)
Aluminum(s)+iodines(s)= Aluminum iodide(S)
Silver Nitrate (aq)+Sodium sulfide (aq)= silver sulfide(S)+ sodium nitrate (aq)
The first one is done this way. However, I assume you meant iodine (not iodide) and it would be gas if at a slightly elevated temperature or a solid otherwise.
HI(g) ==> H2(g) + I2(g)
The others are done the same way. All you are doing is converting a word equation into a chemical equation. Use the periodic table to obtain valences if you don't have a table or if you don't know them.
The second one is
Al(s) + I2(s) ==> AlI3(s)
To write skeleton equations, you need to understand the following:
1. Chemical symbols: Elements are represented by symbols, such as H for hydrogen, I for iodine, Al for aluminum, Ag for silver, and Na for sodium.
2. States of matter: It is important to indicate the physical state of each substance involved in the reaction. The most common abbreviations are (s) for solid, (l) for liquid, (g) for gas, and (aq) for aqueous (dissolved in water).
3. Conservation of mass: In a chemical reaction, the total number of atoms of each element must be the same on both sides of the equation. This ensures the law of conservation of mass is upheld.
Based on these principles, let's write the skeleton equations for the reactions you provided:
1. Hydrogen iodide(g) → Hydrogen(g) + Iodine(g)
2. Aluminum(s) + Iodine(s) → Aluminum iodide(s)
3. Silver nitrate(aq) + Sodium sulfide(aq) → Silver sulfide(s) + Sodium nitrate(aq)
Remember, these are just the skeleton equations, and they don't include any balancing of the chemical equations. It's important to balance equations to ensure the number of atoms on both sides is equal.