To determine the mass of the sample, first find the volume difference after and before the aluminum was placed, the volume change is equal to the volume of the submerged object, in this case aluminum.
Then knowing volume of aluminum and the density of it, we can solve for the mass.
D = m/v
Dv = m
2.7 g/ml • 8 ml = 21.6 grams.
Answer:
the answer is 25.032g check pic for explanation
D) Contain Chemical bonds.
Answer: After three half-lives 1/8 (12.5%) of the original sample remains
Manipulation of the independent variable should change the dependent variable, the value of which "depends" on the independent variable's change in value.