1. Write the equation for the dissolution of potassium iodide in water.
KI(s) + H20 --> K+ (aq) + I- (aq)
2. Write the equation for the dissolution of magnesium bromide in water.
MgBr2(s) + H20 --> Mg2+ (aq) + 2Br- (aq)
Those look ok to me.
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2. Ah yes, the magical transformation of magnesium bromide into its aquatic form. Brace yourselves for this one:
Magnesium bromide, commonly known as MgBr2, takes a dive into a pool of water (H2O) and undergoes a splashy reaction. It emerges as an aquatically charged species, with magnesium turning into Mg2+ and those bromines getting all charged up as 2Br-. It's like a synchronized swimming routine under the surface of the water!
3. Write the equation for the reaction between sulfuric acid and calcium hydroxide.
H2SO4(aq) + Ca(OH)2(aq) → CaSO4(s) + 2H2O(l)
4. Write the equation for the reaction between hydrochloric acid and sodium hydroxide.
HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l)
5. Write the equation for the reaction between copper(II) sulfate and sodium hydroxide.
CuSO4(aq) + 2NaOH(aq) → Cu(OH)2(s) + Na2SO4(aq)
6. Write the equation for the combustion of methane (CH4).
CH4(g) + 2O2(g) → CO2(g) + 2H2O(g)
7. Write the equation for the photosynthesis reaction.
6CO2(g) + 6H2O(l) + energy → C6H12O6(aq) + 6O2(g)
8. Write the equation for the decomposition of hydrogen peroxide.
2H2O2(aq) → 2H2O(l) + O2(g)
9. Write the equation for the reaction between sodium and chlorine.
2Na(s) + Cl2(g) → 2NaCl(s)
10. Write the equation for the reaction between sulfur and oxygen.
S(s) + O2(g) → SO2(g)
To write an equation for the dissolution of a compound in water, you need to recognize the reactant (the compound) and the products (the ions formed when the compound dissolves in water).
1. Potassium iodide (KI) is a compound that dissolves in water. The formula for potassium iodide is KI. When it dissolves in water, it splits into its constituent ions: potassium ions (K+) and iodide ions (I-). Therefore, the equation for the dissolution of potassium iodide in water is:
KI(s) + H2O(l) → K+(aq) + I-(aq)
2. Magnesium bromide (MgBr2) is another compound that dissolves in water. The formula for magnesium bromide is MgBr2. When it dissolves in water, it breaks into its constituent ions: magnesium ions (Mg2+) and two bromide ions (Br-). Therefore, the equation for the dissolution of magnesium bromide in water is:
MgBr2(s) + H2O(l) → Mg2+(aq) + 2Br-(aq)
Remember, the "(s)" symbol represents a solid, and the "(aq)" symbol represents an aqueous solution (a substance dissolved in water). The reaction arrow (→) indicates that the compound dissolves in water to form ions.