Answer: A. The reaction takes place in one step.
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.
Molecularity of the reaction is defined as the number of atoms, ions or molecules that must colloid with one another simultaneously so as to result into a chemical reaction.
Order of the reaction is defined as the sum of the concentration of terms on which the rate of the reaction actually depends. It is the sum of the exponents of the molar concentration in the rate law expression.
Elementary reactions are defined as the reactions for which the order of the reaction is same as its molecularity and order with respect to each reactant is equal to its stoichiometric coefficient as represented in the balanced chemical reaction.
k= rate constant
a= order with respect to A
b = order with respect to B
I believe you're answer is Chemical
A hydride is a general term for the compound in which its hydrogen atom is connected to another compound. The name and formula of the hydride formed are written in answers below.
a. hydride formed by tin
The general way of naming the hydride of a metal is composed of two words. The first word is the name of the metal and the second word is the hydride. For this item, the hydride formed is TIN HYDRIDE. Its formula is <em>SnH₄</em>.
b. hydride formed by aluminum
Following the same concept as the above, the name of the hydride would be ALUMINUM HYDRIDE. The chemical formula of the compound is <em>AlH₃</em>.
Remember that:
number of moles = mass/molar mass
First, we get the molar mass of the nitrogen gas molecule:
It is known the the nitrogen gas is composed of two nitrogen atoms, each with molar mass 14 gm (from the periodic table)
Therefore, molar mass of nitrogen gas = 14 x 2 = 28 gm
Second we calculate the mass of the precipitate:
we have number of moles = 0.03 moles (given)
and molar mass = 28 gm (calculated)
Using the equation mentioned before,
mass = number of moles x molar mass = 0.03 x 28 = 0.84 gm