Which pair consists of a molecular formula and its corresponding empirical formula?
(1) c2h2...
Chemistry, 21.08.2019 14:30 kayladianemmp6qhfa
Which pair consists of a molecular formula and its corresponding empirical formula?
(1) c2h2 and ch3ch3 (3) p4o10 and p2o5
(2) c6h6 and c2h2 (4) so2 and so3
Answers: 2
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The minerals found in bones are deposited by living cells called
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Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.
Answers: 1
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How many lone pairs of electrons are on the central atom of no3- and what is the molecular shape? one, trigonal planar zero, trigonal pyramidal zero, trigonal planar one, tetrahedral one, trigonal pyramidal
Answers: 1
Chemistry, 23.06.2019 03:00
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
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