Answer:
A. 3g/cm³
B. 3.2g/cm³
C. 2g/cm³
Step-by-step explanation:
A. Density = mass ÷ volume
Volume = length × width × height
Where;
Mass = 81grams, length = 3cm
Volume= 3cm × 3cm × 3cm = 27cm³
Density = 81/27
Density = 3g/cm³
B) Volume = length × width × height
Where;
Mass = 400grams, length = 5cm
Volume= 5cm × 5cm × 5cm = 125cm³
Density = 400/125
Density = 3.2g/cm³
C) Volume = 100mL
Where;
Mass = 200grams
Density = 200/100
Density = 2g/cm³