CO2 and Mass - Century Middle | IB Middle Years Programme ...

Methane forms explosive mixtures with air in the 5-14% range. This can be demonstrated with the device shown in Figure 9, made from a plastic soft-drink container with the bottom half cut off. Cover the opening with a small piece of aluminum foil. With a sharp pencil, poke a hole of approximately 4mm diameter in the center of the foil. ................
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