Question

1. which sample has a density of 2 g/ml? 5. which 2 samples have a density of 4.25 g/ml?

Explanation:

for Q4:

Step1: Density formula

Density = mass/volume

Step2: Sample 1 density

$\frac{8}{2}=4$ g/mL

Step3: Sample 2 density

$\frac{5}{5}=1$ g/mL

Step4: Sample 3 density

$\frac{4}{2}=2$ g/mL

Step5: Sample 4 density

$\frac{15}{3}=5$ g/mL

for Q5:

Step1: Density formula

Density = mass/volume

Step2: Sample 1 density

$\frac{25}{15}\approx1.67$ g/mL

Step3: Sample 2 density

$\frac{21.25}{5}=4.25$ g/mL

Step4: Sample 3 density

$\frac{75}{7}\approx10.71$ g/mL

Step5: Sample 4 density

$\frac{102}{24}=4.25$ g/mL

Answer:

for Q4:
Sample 3