QUESTION 2 The following reaction took place in Henderson Hall: AgNO 3 + NaCl --
ID: 1040070 • Letter: Q
Question
QUESTION 2
The following reaction took place in Henderson Hall:
AgNO3 + NaCl --> AgCl + NaNO3
A white precipitate will not form from this reaction.
True
False
2 points
QUESTION 3
You are given three numbers: 57.300, 57.297, 57.298. What is the average of these three numbers if you round up to four significant figures?
57.29
57.298
57.30
57.3
2 points
QUESTION 4
Heating above 100oC is absolutely necessary to drive water off of a hydrate.
True
False
2 points
QUESTION 5
A hydrate is a metal salt that has water coordinated to it.
True
False
2 points
QUESTION 6
An anhydrous salt is a metal salt that has water coordinated to it.
True
False
57.29
57.298
57.30
57.3
Explanation / Answer
2) False.
Since the product AgCl produced in the given reaction is a white colour solid precipitate. Hence given statement is FALSE.
3) we know that,
Average = sum of total numbers/ total number of numbers
=(57.300+57.297+57.298)/3
= 57.298 = 57.30( 4 significant figures )
4). False.
Since it is not necessary to heat the hydrated salt over boiling point of water. Also water can eliminate or evaporated below to its temperature. So it's not always 100°c is required
5) True.
Since a hydrated salt is a salt in which the water molecules are bonded to metal ions.
6) False.
Since anhydrous salt will obtained by removing all water molecules from hydrated salt.