2. The year graphs shown below represent hours of daylight and solar energy for what location? Hours of daylight
January 1
24
20
16
JAN FEB MAR APR MAY NAG SER OCT NOV DEC
500
400
Solar energy
(W/m2)
300
200
100
0
AN FERM
APR MAY JUN AUG SEP OCT NOV 060
O A North Pole (90° N)
O B. Arctic Circle (66.5°N)
O C. Tropic of Cancer (23.5°N)
O D. Equator (0)

The organism shown is a free-living one that is anchored to the bottom of ponds and streams during one stage of its life cycle what is the common name for the group to which this organism belong

Most materials are not magnetic because their magnetism has worn off. their magnetic domains are arranged randomly. they lack magnetic fields. earth’s heat has destroyed their magnetism.

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 .