) A pickpocket plans to steal the bar of gold from your purse and replace it with a sack of sand. Assume that the volume of the bar of gold(Au) and the bag of sand (silica oxide) are 641.9 mL.
[Density of gold is 19.32 g/cm3 ; Density of sand is 3.00 g/ cm3 and 1 mL= 1 cm3 ] (7marks)
A. Calculate the mass of each, the gold, and the bag of sand.

B. Would you notice the difference in the weight of the backpack?

C. Calculate the purse volume needed to hold an equivalent mass of sand, so it equals the weight of the
gold.

???/Record your observations. Include the data table you created for the lab and a graph based on the data table.

Type your answer here:

the answer is b because, investigating whether another species of moth also drinks tears might be interesting, but it would not directly explain why this species of moth does.

to explain why this species of moth drinks tears, the scientist could ask: "what nutrients that moths need are in elephant tears? "

the scientist could experiment with moth repellent or oter ways to keep the moths away, but that would not answer his original question.