Answer:
a medicine or other substance which has a physiological effect when ingested or otherwise introduced into the body.
Explanation:
The answer is D) The boy uses force to move the rock a distance
Answer:Rate of reaction can be determined in terms of concentration of reactants consumed or concentration of product formed per unit time
Explanation: For the reaction below
A ===>B
The reactant is A while the product given is B.
Reaction rate = Δ[B]/Δt = -Δ[A]/Δt
The concentration of A will decrease with time while the concentration of B will increases with time.
The negative sign in -Δ[A]/Δt is to convert the expression to positive since the change will always be negative (decreases)
The flow of electricity is an electric current. The path that an electric currents floes is a circuit.
