Question

Why does ice float on water? A. The temperature of ice is lower than the temperature of water. B. The temperature of water and ice are the same. C. The density of ice is less than the density of water. D. The density of ice is greater than the density of water.

Answer 1

It is C, ice is about 9% less dense than water! This is true info

Answer 2

Answer:

C. The density of ice is less than the density of water.

Explanation:

As we know that when ice floats on the water then we can say that

Buoyancy force on ice will be counterbalanced by the weight of ice block

So here we have

$F_b = mg$

now we say that for flotation of ice cube the buoyant force must be greater than the force of gravity

$\rho_w Vg > \rho_{ice} Vg$

so here we can say

$\rho_w > \rho_{ice}$

so here density of ice will be less than the density of water