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Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:
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How will the volume of a gas be affected if the pressure is tripled, but the temperature remains the same?
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How many moles of co2 are produced during the complete combustion of 3.6 moles of c2h6
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Air pressure is measured in pascals. for a professional american football game, the ball should be inflated to about 90,000 pascals. scientists studied the effects of air temperature on the pressure inside american footballs by taking these steps: 1. prepare 100 footballs. 2. measure each football's air pressure. 3. divide footballs into 10 groups. 4. place the groups in different lockers cooled to different air temperatures. 5. after 12 hours, remove the footballs from lockers. 6. measure each football's pressure again. 7. compare the new pressures to the starting pressures. what two terms best describe the variable "air pressure inside the football" in this experiment? independent, qualitative independent, quantitative dependent, qualitative dependent, quantitative
Answers: 3
A solution at 25°C is 1.0 x 10^-5 M H3O+. What is the concentration of OH- in this solution...
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