When baking soda and vinegar react, the surface bubbles. what does this most likely indicate?

a: a chemical change, because a precipitate is being formed
b: a chemical change, because a gas is being formed
c: a non-chemical change, because a precipitate is being formed
d: a non-chemical change, because a gas is being formed

The correct answer is B: a chemical change, because a gas is being formed.

Explanation:

The chemical equation of baking Soda reacting with Vinegar is:

CH3COOH + NaHCO3 = CH3COONa + CO2 + H2O

As you can see in the process CO2 ( carbon dioxide ) is being released. This is a chemical change that causes a gas being formed  

B: a chemical change, because a gas is being formed

Other indicators of a chemical reaction include;

Therefore, a reaction between baking soda and vinegar is an example of a chemical reaction ,due to the production of bubbles which indicates formation of a gas.

real, smaller and upside-down.   so the answer should be b.

get the total number of pieces of fruit and divide it by 4 to get the average. the result is the answer to the problem. 14 total number of fruits and there are 4 members. 14 divided by 4 is equals to 3.5.