Chemistry, 16.04.2021 20:20 amselah4955
PLEASE HELP‼️Ammonia has a nitrogen to hydrogen ratio by mass of 14:3. what is the mass of a sample of ammonia if there are 25.0 g of nitrogen? (choose one)
30.4 g
3.00 g
75.0 g
5.36 g
Answers: 3
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Aweight lifter raises a 1600 n barbell to a height of 2.0 meters. how much work was done? w = fd a) 30 joules b) 3000 joules c) 320 joules d) 3200 joules
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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
PLEASE HELP‼️Ammonia has a nitrogen to hydrogen ratio by mass of 14:3. what is the mass of a sample...
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