1) Answer is: <span>no precipitate.
</span>Chemical reaction: 2NaCl + Ba(OH)₂ → BaCl₂ + 2NaOH.
Barium chloride is salt that dissolves in water, sodium hydroxide is strong base that dissolves in water. This is example of double replacement reactions(double displacement or metathesis reactions)<span>, two ionic compounds are exchanged, making two new compounds.</span>
2) Answer is: AgI.
Chemical reaction: 2AgClO₃ + MgI₂ → 2AgI + Mg(ClO₃)₂.
Silver chloride form yellow precipipate, magnesium chlorate is salt that dissolves in water. This is also example of double replacement, Mafnesium has oxidation number +2 and siilver has oxidation number +1, iodine has -1 and chlorate also -1.
Mass = molarity x molar mass( NaNO₃) x volume
mass = 1.50 x 85.00 x 4.50
mass = 573.75 g of NaNO₃
hope this helps!
100°C because all the molecules are moving the fastest past each other
Explanation:
The given data is as follows.
= 30.0 sec,
= 5 min =
= 300 sec
= 12.0 min =
= 720 sec
Formula for adjusted retention time is as follows.

= 300 sec - 30.0 sec
= 270 sec
= 720 sec - 30 sec
= 690 sec
Formula for relative retention (
) is as follows.

= 
= 2.56
Thus, we can conclude that the relative retention is 2.56.
Answer:
Explanation:I would need more info to understand this question but explaining molecules is pretty easy tho