CuS
Zn(OH)2
CaCl2
PbCl2
Answer is Right!
Answer is Wrong!
The correct answer is C. CaCl2.
A soluble salt is a salt
that dissolves in water. The solubility of a salt depends on the type of ions that it is made up of. Some ions, such as sodium and chloride, are very soluble in water. Other ions, such as calcium and sulfate, are less soluble.CuS is a copper sulfide salt. Copper sulfide is a black solid that is not soluble in water.
Zn(OH)2 is a zinc hydroxide salt. Zinc hydroxide is a white solid that is slightly soluble in water.
PbCl2 is a lead chloride salt. Lead chloride is a white solid that is slightly soluble in water.
CaCl2 is a calcium chloride salt. Calcium chloride is a white solid that is very soluble in water.
Therefore, the correct answer is C. CaCl2.