Question

Since I’m so amazing I’ll post the answers to the science unit 3 lesson 6 (chemical reactions)

Answers:

Question 1.
Use the chemical reaction to answer the question.

​CaCO3→CO2​+CaO

A scientist heats 30 grams of calcium carbonate (CaCO3) in the chemical reaction shown. What is the total mass of the products?

Answer: 30 grams


Question 2. Which is most likely to occur during a chemical reaction?

Answer: Mass is Conserved


Question 3.
Use the chemical reaction to answer the question.

NaHCO3+HC2H3O2→NaC2H3O2+H2O+CO2

A student mixes baking soda (NaHCO3) and acetic acid (HC2H3O2) to produce a chemical reaction shown. Which statement about the reaction is correct?

Answer: The atoms of the reactants are regrouped during the reaction


Question 4.
Use the chemical reaction to answer the question.

2H2+O2→2H2O

There are four atoms of hydrogen (H) before the reaction. How many atoms of hydrogen are present after the reaction?


Answer: 4


Question 5.
Use the chemical reaction to answer the question.

H2O2→H2O+O2

Which equation for this reaction demonstrates the Law of Conservation of Mass?
Responses

Answer: 2H2O2→2H2O+O2


No need to thank me! Have an amazing day, Avocado out! 😎

Answer 1

Thank you for sharing the answers to your science unit! It looks like you’ve done a great job summarizing the key concepts related to chemical reactions and the Law of Conservation of Mass. If you have any specific questions or need further clarification on any of the topics, feel free to ask. Have an amazing day, Avocado, and keep up the great work! 😎🍏