Plz HElp 3 The density of water is 1 g/cmº. A substance will float if its density is less 33 points
than that of water. Which of the following substances will float?*
Substance
Mass
Volume
1
69
3 cm3
2
89
4 cm3
3
109
2 cm3
4
29
4 cm3
O Substance 1
O Substance 2
Substance 3
O Substance 4

Substance 4

Explanation:

Density is defined as mass per unit volume. A substance floats in another when its density is less than that of the substance on which it floats.

If an object is immersed in a denser liquid, it will sink

Since the density of water is 1 g/cm^3, any substance whose density is less than that of water will float in it.

If we look at the table, substance 4 has a density of 0.5g/cm^3. Hence, substance 4 is expected to float in water.

po-215 i got it right on the quiz

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.