Chemistry, 13.02.2020 01:36, allieb12334
For balancing chemical equations, when do you need to add, when do you you need to divide?
Ex: NH3+O2➡️NO + H2O
N: 1. N:1
H: 3. H:2
O: 2. O:3
Answers: 2
Chemistry, 22.06.2019 22:30, needhelpasap8957
Why is the bottom layer of a trophic pyrimid the
Answers: 2
Chemistry, 22.06.2019 23:00, tovarclaudia055
What does a numerical subscript following an element in a chemical formula mean?
Answers: 1
Chemistry, 23.06.2019 03:00, mullerma
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
For balancing chemical equations, when do you need to add, when do you you need to divide?
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