Question

The first part of a balanced chemical equation is shown: H,SO, + 2NaOH _ many hydrogen (H) atoms must be present in the products?

In order for this equation to be balanced, how many hydrogen atoms must be present in the products?

1 Claim : The correct answer (the claim) is __ Hydrogen atoms.

2 Evidence : Show the calculation to support the claim

3 Reasoning: What scientific concept describes why your calculation supports the claim.

PLEASE ANSWER CLAIM , EVIDENCE AND REASONING!!

Answer 1

Refer to the step-by-step explanation.

Step-by-step explanation:

1. Claim:

The correct answer is 4 Hydrogen atoms.

2. Evidence:

To balance the equation, we must adhere to the law of conservation of mass, which implies that the number of atoms of each element must be the same on both sides of the equation. Let's balance the given partial equation:

`H_2SO_4+2NaOH \longrightarrow \ \dots`

In this partial equation, we have:

• 2 hydrogen atoms from H₂SO₄
• 2 hydrogen atoms from 2NaOH

Therefore, on the left side of the equation, we have a total of 2 + 2 = 4 hydrogen atoms.

To balance the equation, we need the same number of hydrogen atoms on the right side of the equation.

3. Reasoning:

The scientific concept that describes why this calculation supports the claim is the Law of Conservation of Mass, which states that matter cannot be created or destroyed in a chemical reaction. Therefore, for the reaction to be balanced, the same number of Hydrogen atoms must exist on both the reactant and product sides of the equation. In this case, since there are 4 Hydrogen atoms on the reactant side, there must be 4 Hydrogen atoms on the product side as well.