Calcium oxide (CaO) is commonly used as a soil amendment to neutralize acidic soils.
Step-by-step explanation:
Calcium oxide (CaO) is commonly used as a soil amendment to neutralize acidic soils. When calcium oxide reacts with water, it forms calcium hydroxide (Ca(OH)2), which helps to increase the pH of the soil and improve its fertility. The equation for this reaction is:
CaO + H2O → Ca(OH)2
To determine how much calcium oxide is needed to neutralize a soil sample, you would need to know the amount of acidity present in the soil and the amount of calcium oxide required to neutralize that acidity. Without more specific information, it is not possible to calculate the exact amount of calcium oxide needed