In a closed system, if 10 grams of substance A react completely with 5 grams of substance B, what will be the total mass of the products formed?

A 5 grams

B 10 grams

C 15 grams

D 20 grams

✓ Correct Answer: Option C

According to the Law of Conservation of Mass, matter cannot be created or destroyed in a chemical reaction. Therefore, the total mass of the reactants must equal the total mass of the products (10g + 5g = 15g).

💡 Why is C) the correct answer?

The correct answer to the question "In a closed system, if 10 grams of substance A react completely with 5 grams of substance B, what will be the total mass of the products formed?" is Option C: 15 grams.

The other options — A) 5 grams, B) 10 grams, D) 20 grams — are incorrect for this GED Exam Prep question. As explained above: According to the Law of Conservation of Mass, matter cannot be created or destroyed in a chemical reaction. Therefore, the total mass of the reactants must equal the total mass of the products (10g +…

📚 About This GED Exam Prep Practice Question

This 1-level GED Exam Prep question from the Science topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free GED Exam Prep practice test or use flashcards for spaced repetition review.

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In a closed system, if 10 grams of substance A react completely with 5 grams of substance B, what will be the total mass of the products formed?

✓ Correct Answer: Option C

📚 About This GED Exam Prep Practice Question

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