Wooden Wedding Rings

Chris asked:


T_T huhuhu My brains are poring please please help me I would be greatly thankful if anyone could help me on this question pleasee..

1.Determine the volume of an iron sphere that has a mass of 4.05kg(density of Fe=7.87 g/m raise to 3)

2.A substance with a mass of 94 grams was dropped in 25 mL of water. The Volume of water increases to 75 mL. What is the density of the substance?

3.What is the mass in grams of 0.2 liters of ethyl alchohol (density of ethyl alcohol of 0.79 g/mL)?

4.What is the volume in mL is occupied by 62 grams of aluminum (density of aluminum is 2.70 g/mL)?

5.A gold ring weighs 9.5 grams with a volume of 0.9 mL. What is the density of the gold ring?

6.A wooden cube whose lenth is 5 cm weighs 50 grams. What is the density of the cube?

7.If the density of copper is 8.94 g/mL, what volume will it occupy if it weighs 5 grams?

8.Aluminum has a density of 2.7g/mL. When placed in 75 mL of water, the volume of water increased to 100mL. What must be the mass of aluminum

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