Question

Baking soda and vinegar can be used to model a volcanic eruption in a science demonstration because they bubble violently when mixed. What can be concluded about mixing vinegar and baking soda?
A.
Baking soda has a lower density than vinegar.
B.
Baking soda and vinegar make a uniform mixture.
C.
Vinegar boils when it comes in contact with baking soda.
D.
Vinegar and baking soda react to form a new gaseous substance.

Answer 1

D.Vinegar and baking soda react to form a new gaseous substance

Answer 2

Answer:  D.  Vinegar and baking soda react to form a new gaseous substance.

Explanation:

When Vinegar and baking soda react, it produces carbon dioxide which bubbles (effervescence) as it is produced. This is why this reaction is often used to mimic that of a volcanic eruption.

C₂H₄O₂ +           NaHCO₃           →     NaC₂H₃O₂       +     H₂O  +  CO₂

vinegar + sodium bicarbonate  →   sodium acetate +    water +  carbon                                                      

                                                                                                            dioxide