What are the products ?

CH3-CH2-CH2-CH3 + Br2→

RCH3 + Br2 ==> HBr + RCH2Br

You can get some of the other brominated hydrocarbons also. In fact, I understand that the secondary H atoms are more reactive than the primary That means
CH3CH2CH2(Br)CH3 would be produced in greater amounts than the first one I showed. Here is a site that explains that better.
http://www2.chemistry.msu.edu/faculty/reusch/VirtTxtJml/funcrx1.htm

The reaction you have written is a chemical equation, which represents a reaction between butane (CH3-CH2-CH2-CH3) and bromine (Br2). In order to determine the products of this reaction, we need to understand the type of reaction that is occurring and the properties of the reactants.

The reaction you've provided is an example of a substitution reaction, specifically a halogenation reaction. In a halogenation reaction, a halogen atom replaces a hydrogen atom in an organic compound. In this case, one of the bromine atoms (Br) from the bromine molecule (Br2) will substitute a hydrogen atom from a butane molecule (CH3-CH2-CH2-CH3).

To determine the specific product(s) of this reaction, we need to know the substitution pattern of the butane molecule. Butane is an alkane, meaning it is a hydrocarbon with only single bonds. The carbon atoms in butane are numbered from one end to the other, giving us four carbon atoms. In this case, the butane molecule acts as a substrate for the bromine molecule, and a substitution occurs at one of the carbon atoms.

Since butane has four carbon atoms, there are four possible products, each with bromine substituting a different carbon atom in the butane molecule. The products can be represented as follows:

1. CH3-CH2-CH2-CH2-Br (bromine substitutes the carbon next to the methyl group)
2. CH3-CHBr-CH2-CH3 (bromine substitutes the second carbon in the butane chain)
3. CH3-CH2-CHBr-CH3 (bromine substitutes the third carbon in the butane chain)
4. CH3-CH2-CH2-CHBr (bromine substitutes the last carbon in the butane chain)

Each of these products would be formed to some extent in the reaction, depending on the conditions and reactant concentrations.