How many molecules of water are in a 45 g sample of H2O? 1. 1.5 x 1024 molecules H2O
2.
1.3 x 10-21 molecules H20
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3.
3.7 x 1024 molecules H2O
4.
6.5 x 1023 molecules H2O ...
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1) describe the physical layout of the ocean floor ? 2) explain how the dumbo octopus swims differently than other octopus species and why this would be an advantage in the aphonic zone . 3) why are the types of organisms that live at each underwater hot vent so dramatically different ?

Can someone me out on this question for my national 5 chemistry homework

)a children’s liquid cold medicine has a density of 1.23 g/ml. if a child is to take 2.5 tsp in a dose, what is the mass in grams of this dose? (1 tsp = 5 ml)