Ablock has a volume of 0.09 m³ and a density of 4000 kg/m³. what’s the force of gravity acting on the block in water

 The force  of gravity acting  on the  block in water  is 3528 N

 calculation

force of gravity = mass  x acceleration

acceleration of gravity =  9.8m/s²

mass =  density  x volume

  = 4000 kg/m³   x0.09 m³  =360 Kg

force of  gravity  is therefore = 360 kg  x 9.8 m/s²  = 3528 N

c is the answer because when something is left after something evaporates that shows the chemical change.