There are birds that eat the food from between the teeth of alligators, leaving the
alligators with clean teeth and the birds with a meal. What type of ongoing relationship
is this?
B. Mutualism
C. Commensalism
D. Parasitism
A. Predator & Prey
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Ответ:
x = 2.2*10^23 molecules of H2O
Explanation:
H = 1g
O = 16g
H2O = 1g*2 + 16g
H2O = 18g = 1 mol of H2O
18 g___1 mol of H2O
6.38g__ x = 0.354 mol of H2O
1 mol6.22*10^23 molecules
0.354 mol__x = 2.2*10^23 molecules of H2O