The stems and leaves of many plants contain oxalic acid (H2C2O4) or sodium oxalate. A standard analysis for determining the amount of oxalate ion (C2O4 -2) in a sample is to precipitate oxalate out with the calcium ion. The reaction often involves the following reactants. Complete the following information for this reaction. Sodium oxalate and calcium chloride
Balanced Equation:
Total Ionic Equation:
Net Ionic Equation:

explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.