Solution :
Term Best description
Eriochrome Black T EBT
Starting color, before titration Pale purple-pink color
Molecule that has a high affinity for metal ions Chelating agent
Ethylenediaminetetracetic acid EDTA
Color at the completion of titration Blue-gray color
A metal reactions form the molecules
Based on the phase diagram, the melting temperature of Q is 60°C, however the boiling temperature is not shown.
<h3>What is a phase diagram?</h3>
A phase diagram is a graph which shows the effect of pressure and temperature on the phase of a substance.
The melting or freezing point of a substance is that temperature in which the substance exists as both solid and liquid.
From the graph, the melting temperature of Q is 60°C.
The boiling or condensation point is temperature at which the substance exists as liquid and gas.
At the boiling point of a substance, its vapor pressure is equal to atmospheric pressure.
In the graph, the boiling temperature of Q is not shown clearly.
Learn more about phase diagram at: brainly.com/question/1612862
Answer
a) Group 16
b) Group 1
c) Group 15
d)
e)
f) Sodium
g) Oxygen
h) Phosphorus
Procedure
Using the periodic table below identify the elements. The periodic table organizes elements in a way that reflects their number and pattern of electrons. The table places elements into columns—groups—and rows—periods.
An element’s column number gives information about its number of valence electrons and reactivity. In general, the number of valence electrons is the same within a column and increases from left to right within a row. Applies only for groups 1,2, 13-18 (remembering that from 13 to 18 the last number is the valence).
