When the compound, ca(no3)2, is mixed with water, the ca(no3)2 is:

soluble because all ca+2 compounds are soluble in water

insoluble because most ca+2 compounds are insoluble in water

soluble because all no3−1 compounds are soluble in water

insoluble because no3−1 compounds are usually insoluble in water

The answer t your question is below:

Explanation:

When a salt is mixed with water, it will form ions, these ions are soluble in water.

Example:    Ca(NO3)2    ⇒    Ca⁺²     +    2 NO₃⁻¹

Both Ca⁺² and NO₃⁻¹ are soluble in water.

Then the answer to your question is:

Soluble because all Ca+2 compounds are soluble in water

Soluble because all NO3−1 compounds are soluble in water

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.