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1. A steel cylinder has a volume of 15.0 L. It is filled with 50.0 g...

1. A steel cylinder has a volume of 15.0 L. It is filled with 50.0 g of N2 gas at 25 0C. What is the pressure of N2 gas in the cylinder.? R = 0.0821 L-atm/mol-K; 1 mole N2 gas = 28.0 g N2 gas

2. T/F Carbon dioxide gas formation when CaCO3 reacts with acid is one evidence of chemical change.

3. T/F In a reaction equation the arrowhead always points to the products.

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