Sodium chloride and calcium carbonate combine to form sodium carbonate and calcium chloride in the reversible reaction. 2NaCl + CaCO3 ⇌ Na2CO3 + CaCl2

Which statement about the reaction is necessarily correct?

1. The reaction will continue until the sodium chloride is used up.
2. The rate at which calcium chloride is equal to the rate at which sodium chloride is produced.
3. Both calcium carbonate and sodium carbonate are being produced.
4. The reaction is moving only from left to right.

at positions a, g kinetic energy is maximum.

at position d, potential energy is maximum.

  the unit of the measure =

explanation:

  the property that is quantified by the energy needed per of material to raise the temperature by one.

  si unit of energy = joule (j)

  si unit of temperature = kelvin (k)

  si unit of mass of material = kilogram (kg)

the property that is quantified by the energy needed per of material to raise the temperature by one is called specific heat.

the unit of specific heat is

a. spokes of a wheel.

as indicated in the question radial contains rad, also found in radius, so the fracture's would span the radius.