To write a prediction on a flame test, you need to state the color of the flame that you expect the sample to produce based on the known properties of the element present in the sample. For example, if you know that the sample contains sodium, you could predict that it will produce a bright yellow flame. Make sure to explain the reasoning behind your prediction using the spectral properties of the element.
The flame test for nickel produces a blue-green color flame.
Cobalt gives a blue flame test while chromium gives a green flame test.
Lithium carbonate produces a bright red flame color when subjected to a flame test.
Calcium typically produces an orange-red flame when subjected to a flame test.
A yellow flame in a flame test usually indicates the presence of sodium in the sample being tested. Sodium typically produces a bright yellow flame when heated.
The independent (or explanatory) variable is changed to test the prediction,
jenner tested his prediction on a small boy
hypothesis :)
The flame test in analytical chemistry is only qualitative.
That is a hypothesis.
Cobalt gives a blue flame test while chromium gives a green flame test.
The flame test for nickel produces a blue-green color flame.
Cesium burns with a lilac or bluish-violet flame in a flame test.
Chlorine gas itself does not emit a colored flame when subjected to a flame test. Instead, it will impart a green color to the flame when a sample containing chlorine (such as a chloride compound) is included in the flame test.
Iodide ions typically produce a violet flame test when burned in a flame test.
That is a hypothesis.
The colour turns brick Red .