In the acid-base homemade chemical reaction, what was the independent variable?

• egg

• vinegar

What was the reaction that occurred between the eggshell and the vinegar?

• chemical reaction

• physical reaction

• there was no reaction

What is the salt that forms the eggshell?

• CaCO3

• CO2

• H2O

• CH₃COOH

• Ca(OH)2

What is the evidence observed in the reaction between the eggshell and the vinegar?

• smell

• heat

• gas released

What are the bubbles in the shell surface when you put the eggshell inside the recipient with vinegar?

• water

• vinegar

• carbon dioxide

What should keep the egg contents to spill out?

• the eggshell

• the egg membrane

• the recipient

Is there a difference between the size of the egg at the beginning and at the end of the experiment?

• yes

• no

In the acid-base homemade chemical reaction, what was the dependent variable?

• egg

• vinegar

• recipient

What is the difference between the dependent and the independent variable?

• The independent is the variable that is changed and the dependent is the variable affected by the change.

• The independent is the variable affected by the change and the dependent is the variable that is changed.

What is the color of Ms. Domingo's outfit today?

• green

• red

• blue

• black