A piece of lead is dropped in a solutions of of copper(II) sulfate. Over time copper metal
flakes start to form leaving a solution lead(1) sulfate
What are the reactants?

organisms are more likely to be more preserved in mud than sand because mud is moist and wet, while sand is very dry.

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).

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