(6.93 x 10 1 ) (2.0 x 10 -4 ) =

1.386 -2
13.86 x 10 -3
1.386 x 10 -2
1.4 x 10 -2

Suppose that during that icy hot lab 65,000 j of energy were transferred to 450 g of water at 20°c what would have have been the final temperature of the water

Inside a flashbulb, oxygen surrounds a thin coil of magnesium. when the flashbulb is set off, a chemical reaction takes place in which magnesium combines with oxygen to form magnesium oxide. which of the chemical equations matches the reaction above? a. mg + o2 mgo2 + energy b. 2mg + o mg2o + energy c. 2mg + o2 2mgo + energy d. mg + o mgo + energy

Which scientists contributed to the determination of how cfcs in clouds in the upper atmosphere could destroy ozone molecules