Answer:
Flame test is one of the chemical tests that can be used to identify a metal or metaloid
in an ionic compound.
Explanation:
Flame test is guided by a principle that when an unknown metal is heated, heat of the flame converts the metal ions into atoms which become excited and emit visible light.
To carry out flame test in a laboratory the following instruments are required:
--> a wire loop
--> Bunsen burner
--> the chemical compound under observation
--> protective wears.
The procedure involves the following steps:
--> turn on the Bunsen burner and adjust the barrel of the burner roll the flame is blue.
--> using a clean wire loop deep into a beaker containing hydrochloric acid.
--> to ensure that the loop is clean, it will give the same blue colour of the flame when heated.
--> deep the loop in the acid again and then use it to pick few grains of the metal.
--> place the wire loop in the side of the flame and observe the colour of the flame.
Result of flame tests of some metallic ion will show the following:
--> sodium ion will give yellow colour flame
--> potassium ion will give lilac colour flame
--> calcium ion will give orange-red colour flame
The third one is the answer I think
Hope this helps!!!:)
Answer:
Explanation:
I’m pretty sure because they need the wait so that they can throw it far and fast
hope this helps mate good day
False, there are five forms of matter; solid, liquid, glass, plasma, and <span>Bose-Einstein condensates.
hope this helps :)</span>
Answer: I'm not sure what answer to give you since there are no answer choices, but here is what I got.
Explanation:
Mg is a reducing agent, Fe 2O 3 is an oxidizing agent.
Igniting a mixture of Fe2O3 and Al with a magnesium ribbon fuse produces molten iron and aluminum oxide in an impressive exothermic reaction.
Hope this helped a little:(
