Answer:
its an insulator
Explanation:
they block electricity from passing
Answer:
<h2>Density = 1.6 g/mL</h2>
Explanation:
Density of a substance can be found by using the formula
From the question
mass = 145.8 g
volume = 91.75 mL
Substitute the values into the above formula and solve for the Density
That's
= 1.5891
We have the final answer as
Density = 1.6 g/mL
Hope this helps you
When an object reflects all light, you will see white light.
Answer:
Co²⁺ ions
Explanation:
The ion responsible for the color change in the cobalt solution is Co²⁺ ions. This is because the chemical formula of the given compound is:
CoCl₂;
of the two elements that combined to form this specie, Co is a transition element.
- Transition elements are known to occupy the d-block on the periodic table.
- Most elements here are usually characterized by their variable oxidation states.
- They also produce a wide range of colors.
Answer:
Here is a clue
Explanation:
A convenient ion exchange separation particularly designed for the separation of iron and vanadium or mangenese from cobalt has been developed for the determination of iron, cobalt and manganese or vanadium in soft magnetic alloys. After an anion exchange separation of their chloride complexes these elements are determined by a back titration of an excess of EDTA with a standard copper solution using calcein as an indicator under ultraviolet light.
