What kind of reaction is 1CH4 + 2O2 → 1CO2 + 2H2O + Fire?

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

Precision can be defined as the o exact center of a data set. o reproducibility of a measured value. o correlation between two variables that are measured in a data set agreement between a measured value and an accepted value.

The polymer used for the nonstick surface of cooking utensils is 24.0%c and 76%f by mass. what is the empirical formula of this polymer?