When a piece of metal Q is dropped into a solution of ions of metal R, the piece
ID: 296102 • Letter: W
Question
When a piece of metal Q is dropped into a solution of ions of metal R, the piece of Q is quickly coated with a spongy black deposit. What does this observation show?If a student needs to add exactly 50 milliliters of water to a reaction flask, which of the following will deliver this amount most accurately? a) pipette b) Buret
What are the ground state of Aluminum
What is the type of bonding in a solid state of Aluminum
When a piece of metal Q is dropped into a solution of ions of metal R, the piece of Q is quickly coated with a spongy black deposit. What does this observation show?
If a student needs to add exactly 50 milliliters of water to a reaction flask, which of the following will deliver this amount most accurately? a) pipette b) Buret
What are the ground state of Aluminum
What is the type of bonding in a solid state of Aluminum
If a student needs to add exactly 50 milliliters of water to a reaction flask, which of the following will deliver this amount most accurately? a) pipette b) Buret
What are the ground state of Aluminum
What is the type of bonding in a solid state of Aluminum
Explanation / Answer
1.It shows that metal Q is more reactive than R according to reactivity series. The metal which displaces other metal from it's compound are more reactive than the other. Displacement reaction is taking place in the above experiment shown. THe more reactive metal displaces the lesser reactive from it's compound.
2. Buret should be used is this case as pipette is used for quite lesser volume of solution like 4-5ml.
3. The ground state electron configuration aluminium is [Ne].3s2.3p1
4 .A metallic elements which contain only one to three electrons in the outer shell likethe aluminum atoms lose three electrons, they end up having a positive charge and are designated Al3+ions (cations). This is called metallic bond. Thus a solid state of Aluminum exhibits Metallic bonding.
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