A clam farmer has been keeping records of the water temperature and the number of clams developing from fertilized eggs. The data is recorded above. What is the dependent variable?
What is the independent variable?
What is the optimum temperature for clam development?

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b

5.6⋅10−^19  j

do you need the explaination?