In a chemical reaction, two molecules are rearranged to produce two new

Question

molecules. Reactant 1 has a mass of 12 g. Reactant 2 has a mass of 23 g. The mass of
product 1 is 15 g. The mass of product 2 is _____. (1 point)
27 g
20 g
35 g
11 g

Answer 1

To find the mass of product 2, we can use the law of conservation of mass, which states that the total mass of reactants must equal the total mass of products.

1. Calculate the total mass of the reactants: \[ \text{Total mass of reactants} = \text{mass of Reactant 1} + \text{mass of Reactant 2} = 12,g + 23,g = 35,g \]

2. Calculate the total mass of the products: \[ \text{Total mass of products} = \text{mass of Product 1} + \text{mass of Product 2} \] We know that the mass of Product 1 is 15 g, so: \[ 35,g = 15,g + \text{mass of Product 2} \]

3. Solve for the mass of Product 2: \[ \text{mass of Product 2} = 35,g - 15,g = 20,g \]

So, the mass of Product 2 is 20 g.