Potassium chlorate decomposes to produce 20 g of solid potassium chloride. oxygen gas is also produced. which best describes the mass of oxygen?

a. it is more than the mass of potassium chloride.
b. it is less than the mass of potassium chlorate.
c. it equals the mass of potassium chlorate.
d. it equals the mass of potassium chloride.

i will answer your question if you answer mine

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards