1. Combustion. My hypothesis is that when you spray sunscreen (TiO2) in the flame of a
lighter (C10H4) will cause the same effects as a blow torch. The spray sunscreen is
dependent on the flame of the lighter. The spray sunscreen is dependent. The flame of the
lighter is independent. The controlled conditions are how much sunscreen you spray and
how long you allow the flame of the lighter to burn. First, you will find a lighter and a
spray bottle of sunscreen, then you will light the lighter so there is a flame (C10H4) safely
you will face the spray sunscreen away from you and spray the sunscreen (TiO2) onto the
flame and you will see the same effects as a blow torch.
Volume of cube = 4.0 3 = 64cm 3
Density = 2.7 g / cm 3
2. Mass = ?
Mass = Density Volume
= 64cm 3 2.7 g / cm 3 = 170 g
When you have a model of an atom it allows you to identify the number of protons,
neutrons, and electrons. With that information we are able to find out the name of the
element, the mass and much more. Without a model you would not be able to find this
information, therefore not be able to iden...
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