One molecule of bromine (Br2) and two molecules of potassium chloride (KCl) combine in a reaction. How many atoms are in the products?(1 point)
Responses
three
three
two
two
six
six
four
four
To determine the number of atoms in the products of the reaction, we need to first write out the balanced chemical equation for the reaction:
Br2 + 2 KCl → 2 KBr + Cl2
From the equation, we can see that one molecule of bromine (Br2) reacts with two molecules of potassium chloride (KCl) to form two molecules of potassium bromide (KBr) and one molecule of chlorine (Cl2).
In KBr, there is one potassium atom (K) and one bromine atom (Br), so in the two molecules of KBr, there are a total of 2 potassium atoms and 2 bromine atoms.
In Cl2, there are two chlorine atoms (Cl).
Therefore, in the products of the reaction, there are a total of 2 potassium atoms, 2 bromine atoms, and 2 chlorine atoms.
So the correct answer is: six.
To determine the number of atoms in the products, we need to understand the composition of the molecules involved and the balanced equation for the reaction.
The molecular formula for bromine is Br2, which means it consists of two bromine atoms bonded together.
The molecular formula for potassium chloride is KCl, which means it consists of one potassium atom bonded to one chlorine atom.
In the reaction between one molecule of bromine (Br2) and two molecules of potassium chloride (2KCl), the reactants will combine to produce a new compound. The balanced equation for this reaction is as follows:
Br2 + 2KCl → 2KBr + Cl2
From the balanced equation, we can see that one molecule of bromine (Br2) reacts with two molecules of potassium chloride (2KCl) to produce two molecules of potassium bromide (2KBr) and one molecule of chlorine (Cl2).
In potassium bromide (KBr), there is one potassium atom and one bromine atom in each molecule. So, in the two molecules of potassium bromide (2KBr) produced, there are a total of 2 potassium atoms and 2 bromine atoms.
In chlorine (Cl2), there are two chlorine atoms in each molecule. So, in the one molecule of chlorine (Cl2) produced, there are a total of 2 chlorine atoms.
Adding up the atoms in the products, we have:
2 potassium atoms + 2 bromine atoms + 2 chlorine atoms = 6 atoms
Therefore, the correct answer is six.