Which equation illustrates the commutative property of addition?
12+6+15=12+15+6

12+6+15=12+(15+6)

12+6+15=18+15

12+6+15=12+6+15

Which of the following true? a_volcanoes and earthquakes often near the plate boundaries. b_volcanoes occur whereve there are tall mountains. c_earthquakes cause volcanoes in the same location to erupt violently d_volcanoes and earthquakes occur only where plates are colliding with each other

The arrangement of particles is most ordered in a sample of

The vapor pressure of ethanol is 1.00 × 102 mmhg at 34.90°c. what is its vapor pressure at 61.61°c? (δhvap for ethanol is 39.3 kj/mol.)