Give the expressions for the disappearance of the reactants first, in the order written in the chemical equation. Then write the expressions for the appearance of the products in the order written in the chemical equation. Write the expressions in order of appearance in the equation in the form.

± 1/X . Δ[A]/ Δt

where ± is either a plus OR a minus sign, not both,
X is an integer, and
A is a chemical species.

4NH3(g)+ 5O2(g) → 4NO2+ 6H2O(g)

Rate of disappearance of =

Rate of disappearance of =

Rate of appearance of =

Rate of appearance of =

Explanation:

Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

The rate in terms of reactants is given as negative as the concentration of reactants is decreasing with time whereas the rate in terms of products is given as positive as the concentration of products is increasing with time.

For the given chemical equation :

Rate of disappearance of =

Rate of disappearance of =

Rate of appearance of =

Rate of appearance of =

the answer for sodium is 0.186

the answer for rubidium is 0.251

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)