All categories

3 years ago

During an experiment vinegar was added to baking soda. The following observations were recorded.

2 answers:

8 0

The Chemical change that occurred was the vinegar and baking soda creating gas or air bubbles. While the vinegar and baking soda are losing their mass, the gas created from the chemical reaction is filling in those gaps so the mass of the structure is the same before and after the experiment was conducted.

telo118 [61]3 years ago

8 0

Answer:

Chemical change.

Explanation:

When vinegar (CH₃COOH) is added to baking sods (NaHCO₃) there is a chemical reaction involved which is neutralization. This reaction produces carbon dioxide which is observed as gas release of gas bubbles.

Simultaneously there is making and breaking of bonds and the energy needed to break the bond is greater than the energy released in making the bond thus the reaction is endothermic which overall decreases the temperature of container. Thus the feel of cooling is also a chemical change.

You might be interested in

What would form a solution?

Ipatiy [6.2K]

Answer:

B. Mixing a solute and a solvent

Explanation:

Hello,

In this case, solutions are defined as liquid homogeneous mixtures formed when two substances having affinity are mixed. It is important to notice that the two substances are known as solute, which is added to other substance that is the solvent. Therefore, answer is B. Mixing a solute and a solvent.

Notice that when two insoluble substances are mixed no solution is formed. Furthermore, if two solutes together or a solute and a precipitate are mixed, no liquid homogeneous solution is formed, as commonly solutes are solid, nevertheless, when liquid, one should have to act as the solvent.

Best regards.

6 0

4 years ago

Which of the following is the chemical formula for an acid?

ser-zykov [4K]

Answer:

NH3 and HCl

Explanation:

NH3 and HCl are acids because of their hydrogen ions. NHO3 and NaOH are bases (you can tell because they have an OH). I don't believe SCl2 is an acid or a base

7 0

3 years ago

a student lists three temperature measurements 100 f , 100 c, and 100 k of the highest temps 100 k is the highest true or false

Archy [21]

Answer:

False, it is actually 100 kelvins

Explanation:

7 0

3 years ago

Read 2 more answers

If a landlord does not allow you to have pets in the building, but allows you to have a dog, is that an exception? Why or why no

Sedaia [141]

Yes they are only allowing you to break the rule, you would be the exception

3 0

3 years ago

10. Given the reaction below, which is the reduced substance? Mg + Cl2 Mg2+ + 2Cl-

atroni [7]

Answer:

2Cl-

Explanation:

When a substance is reduced, it gains electrons. Because electrons are negatively charged, the substance that is reduced will have a negative charge. 2Cl- is the substance that was reduced because it became negative.

7 0

3 years ago