Choose the correct statement. 1. A single displacement reaction produces an element as a product.

2. A double displacement reaction occurs between an ionic and a covalent compound.

3. Products of a complete combustion reaction are carbon dioxide and water.

4. Synthesis and Decomposition reaction products cannot be predicted with certainty.

1

Explanation:

single displacement replaces one element with another and it's product is a pure element.

solute : a solute is a substance that is dissolved in another substance is known as a solvent. it is mixed with a special mixture know as homogeneous mixture.

solvent: a solvent is a substance that dissolved a solute, which results in a solution is known as solvent.

a saline water is fed to a reverse osmosis unit at flow rate o rotameter connected to reject (retentate) line reads 8 installed in reject and permeate line reads 15.2 milli siemens/cm and 300 micro siemens/com respectively.