Professor Witty showed his chemistry students an unknown shiny, metal strip and told them that this metal strip is a close relative to calcium. The students were a little perplexed because they do not remember calcium being shiny or even a metal. Plan and design a lab to help Professor Witty’s chemistry students to identify the unknown shiny, metal strip and to show how it is related to calcium based on its chemical properties. This was assigned to me along time ago but this has me confused so this is my last resort. Can anyone help me pls??

hope this

explanation:

covalent bonds

consist of pairs of electrons shared by two atoms, and bind the atoms to fixed orientation and requre high energies to break them

ionic bonds

when two atoms differ considerably in their electronegativity, then one of the atoms will lose its electron to the other atom. this results in a positively charged ion(cation) and a negatively charged ion (anion)

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.

un recipient conține 6,4 moli de gaz. gazul hidrogen reprezintă 25% din totalul kilometrilor din container. în cazul în care presiunea totală este de 1.24 atm ceea ce este