a 7.591-g gaseous mixture contains methane (ch₄) and butane (c₄h₁₀). complete combustion to form carbon dioxide and water requires 0.8970 mole of oxygen gas. calculate the mass percent of methane in the original mixture.

These three organisms are interdependent on each other for their survival. what will happen if foxes are eliminated from the region? a. there will be more rabbits and less grass in the region. b. there will be more grass and fewer rabbits in the region. c. there will be fewer rabbits and less grass in the region. d. there will be more rabbits and more grass in the region.

What are the two main purposes of edgar allen poe’s, “the masque of the red death? ”

Give the brainliestwhich parts of the scientific process differentiate it from pseudoscience? check all that apply. stating facts based on opinionsusing models and experimentsasking new questionsmaking subjective claimshaving explanations that answer all questionsi need more than one answer