If you want to do the molliecular structure I recommend tooth picks and clay balls
Double replacement. The metal ions have exchanged partners.
“Single replacement” is <em>incorrect</em>. In single displacement, <em>one element displaces another element</em> in a compound.
“Decomposition” is <em>incorrect</em>. In decomposition, a <em>single substance</em> changes into two or more substances.
“Combustion” is <em>incorrect </em>because it usually involves a <em>reaction with oxygen</em>
.