Answer:
Gallon (US) to Milliliter Conversion Table
Gallon (US) [gal (US)] Milliliter [mL]
1 gal (US) 3785.411784 mL
2 gal (US) 7570.823568 mL
3 gal (US) 11356.235352 mL
5 gal (US) 18927.05892 mL
An ionic bond because ca is a metal and cl is a nonmetal which is an ionic bond
Answer: (3) ppm
Explanation: Concentration is defined as the amount of solute dissolved in a known amount of the solvent or a solution.
Parts per million (ppm) is used to express the concentration when a very small quantity of solute is present in a large quantity of the solution. It is defined as the mass of solute present in one milion
parts by mass of the solution.

L/s is used to express flow rate.
J/g is used to express energy per unit mass.
kPa is used to express pressure.
True, an atoms nucleus has both protons and electrons.
Answer:
The answer is 2i on right hand side.
Explanation:
We should star by checking the equation from right.
First we check how many Zn r there in left hand side. Which is 1. Let us check how many Znr there in right hand side, there is 1.So Zn is balanced, and don't worry about Znplus2 on right hand side it is just the ions not how many zinc r there.
Now let us check how many I are there left hand side. Which is 2. Now how many I are there in right hand side? Only 1.
So we put 2 behind I.
Now there r 2 I on both sides.
Its simple actually.