The speedometer in a car does not measure the car’s velocity because velocity is
A. vector quantity and has a direction associated with it
B. vector quantity and does not have a direction associated with it
C. scalar quantity and has a direction associated with it
D. scalar quantity and does not have a direction associated with it
Answers: 1
Chemistry, 22.06.2019 08:00
Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.
Answers: 2
Chemistry, 22.06.2019 13:00
Using the thermodynamic information in the aleks data tab, calculate the standard reaction free energy of the following chemical reaction: →+p4o10s6h2ol4h3po4s round your answer to zero decimal places.
Answers: 3
Chemistry, 22.06.2019 20:00
There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .
Answers: 3
The speedometer in a car does not measure the car’s velocity because velocity is
A. vector quanti...
English, 16.12.2021 18:40
Mathematics, 16.12.2021 18:40
Mathematics, 16.12.2021 18:40
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English, 16.12.2021 18:40
Mathematics, 16.12.2021 18:40