Question

A. The reaction of lactose with water happens in some cheeses. This produces lactate. Balance the equation for this reaction below. (1 point)

______C12H22O11 + ______H2O ______CH3CHOHCOOH

Answer 1

The lactose hydrolysis reaction involves the breakdown of lactose (C_12H)22O_11) with the addition of water (H_2O) to form lactic acid (4CH_3CHOHCOOH). The balanced equation is C_12H_22O_11 + H_2O → 4CH_3CHOHCOOH.

The lactose in cheese reaction:

1. Identifying the reactants and products:

Reactant: Lactose (C_12H_22O_11)

Product: Lactic acid (CH_3CHOHCOOH)

2. Recognizing the type of reaction:

This is a hydrolysis reaction because water (H_2O) is involved in breaking apart the larger lactose molecule into smaller lactic acid molecules.

3. Balancing the equation:

Start by counting the atoms of each element on both sides.

Currently, we have:

12 C on the left, 4 C on the right

22 H on the left, 7 H on the right

11 O on the left, 6 O on the right

We need to balance each element:

Multiply lactic acid by 4: 4CH_3CHOHCOOH --> 16 C, 28 H, 24 O

Now both sides have: 12 C, 22 H, and 11 O

4. Writing the balanced equation:

C_12H_22O_11 + H_2O → 4CH_3CHOHCOOH

Answer 2

"The reaction of lactose with water occurs within some cheeses, producing lactate".

Equation key:

• Bold numbers = coefficients
• Underlined numbers = elemental/compound subscripts

Balanced chemical equation for the aforementioned reaction:

C12H22O11 + H2O → 4CH3CHOHCOOH

Maltose + Water = Di-Lactic acid

What is happening in this reaction?

1 mole of maltose and 1 mole of water react with each other forming 4 moles of Di-Lactic acid.