How many atoms are found in 3.45 g of co2?

4.72 x 10^22 atoms

Explanation:

MM of CO2 = 12 +(16 x 2) = 12 +32 = 44g/mol

44g of CO2 contains 6.02x10^23 atoms

Therefore, 3.45g will contain = (3.35 x 6.02x10^23) / 44 = 4.72 x 10^22 atoms

clouds form

solid ice forms on leaves.

water droplets form on grass.

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.