Is this experiment okay for this if not, what would a good one be?

1.design an experiment to verify that new substances are formed and heat is released or absorbed during a chemical reaction.

i want to put water in a microwave and show how it evaporates.

In a reaction (at equilibrium) that makes more moles of gas than it consumes, what is the effect of increasing the pressure?

Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?

The table below shows the freezing points of four substances. substance freezing point (°c) benzene 5.5 water 0 butane –138 nitrogen –210 the substances are placed in separate containers at room temperature, and each container is gradually cooled. which of these substances will solidify before the temperature reaches 0°c? benzene water butane nitrogen