Earth's magnetic field is created by the
bar magnets
reaction forces
gravitational forces
flow of electric charges

How many joules of heat are absorbed to raise the temperature of 650 grams of water from 5.00c to it's boiling point, 100c

Problem page gaseous ethane reacts with gaseous oxygen gas to produce gaseous carbon dioxide and gaseous water . if of water is produced from the reaction of of ethane and of oxygen gas, calculate the percent yield of water. be sure your answer has the correct number of significant digits in it.

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned