Question

1. The atomicity of H2SO4 is 7.
2. NaCl represents one molecule of Sodium Chloride.
3. The centre of gravity of the geometrical shaped
objects lie on the geometric centre of the object.
4. Velocity is the rate of change of distance.​

Answer 1

1. This is atomicity H2SO4 is seven as it has 2 hydrogen, one Sulphur and 4 atoms of oxygen.
2. Sodium Chloride is an ionic compound with the chemical formula NaCl. Since sodium chloride is not a molecule it has an empirical formula, not a molecular formula. Like all other salts, sodium chloride consists of a typical arrangement of anions and cations next to each other. There is no limit on how large this salt can be and there is no definite “end” of the lattice. There is a chloride ion for each sodium ion. The empirical formula of sodium chloride is (Na+Cl–)n.
3. The center of gravity of a circle is its center.The center of gravity of a square, rectangle or a parallelogram is at the points where its diagonals meet each other.The center of gravity of a triangle is at the point where the medians of the triangle meet.
4. The other component of acceleration, which is perpendicular to velocity, is known as normal acceleration. This component is responsible for changing the direction of the velocity. Velocity is the rate of change of displacement, while speed is the rate of change of distance.