CH₄ + 2O₂ → CO₂ + 2H₂O If 20 moles of methane are available, how many moles of methane (CH₄) will burn?

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?

What does a numerical subscript following an element in a chemical formula mean?

In what way do investigations build scientific knowledge? the results of investigations lead to questions that cannot be tested. they reflect the opinions and social values of scientists, ensuring valid information. the results of investigations lead to new questions, which lead to new investigations. they are not influenced by the research of earlier scientists, so they are able to address gaps in understanding.i