For the following incomplete combustion reaction, what are the coefficients necessary to balance the equation: ___ CH4 + ___ O2 → ___ CO2 + ___ H2O + ___ C + ___ CO

Select one:
a. 4,6,1,8,1,2
b. 4,8,1,2,1,6
c. 8,1,1,2,4,6
d. 6,1,8,2,1,4

How are isotopes of the same chemical element alike? how are they different?

Suppose you have designed a new thermometer called the x thermometer. on the x scale the boiling point of water is 129 ? x and the freezing point of water is 13 ? x. part a at what temperature are the readings on the fahrenheit and x thermometers the same?

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering