Answer:
c) CH3CH2CH2CH3
Explanation:
Surface tension; The molecules inside the liquid attract the surface molecules and try to draw the them and make the liquid to assume in the shape having the least surface area. The suface tension increase with increase in intermolecular forces of surface liquid.
CH3CH2CH2CH3 is non-polar and have weak intermolecular forces such as London-dispersion forces.
(CH3)2CO, H2O and CH3OH are polar and have strong intermolecular forces such as hydrogen bonding.
C6H6 have high molecular mass, so will have stronger intermolecular forces.
Explanation:
After calculating the density of the material we can tell if the object will sink or float without placing it in water by comparing their density.
- The density of water is given as 1kg/L
- If the density of the material is greater than the density of water, the material will sink.
- If the density of the material is less than the density of the water, it will float.
This way, comparing the density values of both substances can tell us whether they will float or sink.
Answer:
The sea anemone fertilizes the clownfish’s eggs. Answer is B.
Explanation: