2. 3.14g of H2O to molecules
Chemistry, 09.01.2021 03:30 reginagotredhair
Convert these plz
1. 1.29 x 10^24 atoms of HF to grams
2. 3.14g of H2O to molecules
3. 2.79g NH3 to atoms
4. 4.90 mol Al2O3 to grams. To atoms
5. 3.56g of Cu to atom
Answers: 2
Chemistry, 22.06.2019 07:50
In which situation can a mixture always be called a solution
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Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:
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Chemistry, 22.06.2019 11:00
Imagine that twenty i.u.’s of enzyme z were catalyzing the above reaction for one minute, under vmaxconditions, in a 3.00 ml assay volume. the assay is buffered with 20 mm phosphate buffer, ph 7.60. what will the ph be at the end of that one minute?
Answers: 2
Chemistry, 22.06.2019 13:10
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
Answers: 1
Convert these plz
1. 1.29 x 10^24 atoms of HF to grams
2. 3.14g of H2O to molecules
2. 3.14g of H2O to molecules
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