In the reaction, ch4 + 2o2 --> co2 + 2h2o, 890 kilojoules of heat are released. using einstein's equation, calculate the mass amount to which this energy equates. (1 j = 1 kg m2 s-2) and the speed of light = 3.0 x 108 m/sec
9.9 x 1012 kg
9.9 x 10-12 kg
9.9 x 10-14 kg
1.1 x 10-6 kg

When the ionic compound nabr dissolves in water, br– ions are pulled into solution by the attraction between what two particles? a. the na+ and br– ions b. the na+ ion and the negative end of a water molecule c. the br– ion and the positive end of a water molecule d. the br– ion and the negative end of a water molecule