Question

Chemical Reactions Unit Test
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Question
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

two
two

three
three

four
four

six

Answer 1

To determine how many atoms are in the products of the reaction between one molecule of bromine (Br2) and two molecules of potassium chloride (KCl), we first break down the reactants:

- 1 molecule of Br2 contains 2 bromine (Br) atoms.
- 2 molecules of KCl each contain 1 potassium (K) atom and 1 chlorine (Cl) atom.

Calculating the total number of atoms:
- From 1 molecule of Br2: 2 Br atoms
- From 2 molecules of KCl: 2 K atoms + 2 Cl atoms = 4 atoms (2 K + 2 Cl)

Now adding them together:
- Total = 2 (Br) + 2 (K) + 2 (Cl) = 6 atoms

Thus, the total number of atoms in the products is **six**.

So the correct response is: **six**.