Answer:
Bond angle is affected by the presence or addition of lone pair of electrons at the central atom. Due to this, the bonds are displaced slightly inside resulting in a decrease of bond angle, and when you remove an electron domain the bond angle increases.
Explanation:
Answer:
C. Ball A is the densest because it sank to the bottom of the liquid.
Answer: Gravity
Explanation: So as the mass of either object increases, the force of gravitational attraction between them also increases.