15 pts. All substances taking part in a certain interaction are shown below: Butane is written followed by an addition sign followed by Oxygen followed by an equal to sign followed by Carbon dioxide followed by an addition sign followed by Water. Just below Butane 29 grams is written and just below Carbon dioxide and Water is a parentheses below which 133 grams is written Which of the following is the correct estimate of the amount of oxygen used in the interaction? Sum of 133 g and 29 g
Difference between 133 g and 29 g
Twice the sum of 133 g and 29 g
Twice the difference between133 g and 29 g

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

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The last few miles of the marathon are the most difficult for heather, her hair plastered to her head, sweat clinging to her arms, and her legs already feeling as if they had nothing left, just dead weight. after grabbing a cup of ice water, she feels the ice cubes smash against her nose as she gulps some cool refreshment and keeps on running. in these last few miles, the breeze kicks up and she finally feels some coolness against her skin. drips of sweat, once clinging to her forehead, now spill down, and heather feels more pain as the sweat flows into her eyes.which of the following is the most likely reason why the ice struck heather’s nose when she took a drink? a) water can function as a solvent. b) water can store large amounts of heat. c) water can moderate temperatures through evaporative cooling. d) the density of water decreases when it freezes. e) water has a cohesive nature.sweat remained on heather’s forehead and arms because of the a) high salt content of sweat b) cohesive nature of water c) ability of water to moderate heat d) high evaporative cooling effect of water e) ability of water to act as a solvent