Answer: when a system reaches equilibrium, the rate of formation of product equals the rate of formation of reactant. At this state, we say the reaction is in dynamic equilibrium. Therefore the rate of formation of product and the rate of formation of reactant are equal
Explanation:
Answer:
A and D
Explanation:
Density is an intrinsic property of a substance, which means it is a constant for a given substance regardless of the quantity of that substance present. For two samples to have the same density, they must be composed of the same substance.
Answer:
a light ray will always A light ray will always reflect away from a surface at an angle equal to the angle at which it struck the surface
Explanation:
it sound more formal and just plainly better
Answer:
Explanation:
We can convert the formula units to moles and then use the molar mass to find the mass.
1. Moles of Pb(MnO₄)₂
2. Mass of Pb(MnO₄)₂