Predict whether the following single replacement reactions will occur based on the activity series of the element being replaced.
If no reaction will occur, write "NR" (i. e., no reaction).
If the reaction will occur, write a balanced chemical equation for it.
1. zinc + lead (II) acetate (aq) →
2. aluminum bromide (aq) + chlorine →
3. sodium iodide (aq) + bromine →
4. calcium + hydrochloric acid (HCI) (aq) →

20 drops hope this

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.

they vary. it used to be meat, grain, bread, candy, beverages, donuts, and fruits/vegetables. now they added exercise in.