1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kozerog [31]
2 years ago
7

Which of these is an indication that a chemical reaction has occurred?

Chemistry
2 answers:
kirill [66]2 years ago
8 0
C. Formation of a precipitate.
Kobotan [32]2 years ago
7 0

<u><em>Answer:</em></u>

  • The correct option is C.
  • Formation of a precipitate

<u><em>Explanation:</em></u>

During a chemical reaction, new substances are formed known as a products, mostly reaction occur and their product is obtained as precipitates.

<u><em>Example</em></u>

Arylidene-2-thiobarbituric acid is obtained as precipitates when aldehyde and thiobarbituric acid react to each other.

melting of a substance

It is just indication of physical changes, like melting of ice, composition remained same as before.

boiling of a substance

It is just indication of physical changes, like boiling of water into vapors, composition remained same as before.

freezing of a substance

It is just indication of physical changes, like freezing of water into ice, composition remained same as before

You might be interested in
Please help me with this question!! I’m not sure if they’re the insoluble ions that precipitate with chromate or the soluble one
Vika [28.1K]

Answer:

2) Copper (II) Chloride

Explanation:

A precipitate will form if the resulting compound is insoluble in water. For example, a silver nitrate solution (AgNO3) is mixed with a solution of magnesium bromide (MgBr2).

4 0
2 years ago
What is "Scarcity" <br><img src="https://tex.z-dn.net/?f=." id="TexFormula1" title="." alt="." align="absmiddle" class="latex-fo
Lana71 [14]

Explanation:

I don't know sorry ok I have some work so I m sorry

4 0
2 years ago
Read 2 more answers
At what temperature and pressure can all three phases of water exist simultaneously?
Rzqust [24]
Thirty seven I think
8 0
3 years ago
Read 2 more answers
Answer please????? Thank you
snow_tiger [21]
Can’t have anything in Detroit
7 0
2 years ago
Identify the heterogeneous mixtures from the list. Check all that apply. salad dressing hydrochloric acid solution orange juice
raketka [301]

Answer:

salad dressing

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • Write the formula and name of the compound formed from the following ionic interactions:
    9·1 answer
  • All of the elements below can exist as network solids EXCEPT 1. As 2. B 3. Si 4. O 5. C
    7·1 answer
  • Write the oxidation number for the following elements: for brainliest answer
    12·1 answer
  • 125 K = °C<br> A) 146<br> B)-146<br> C)398<br> D)-398
    5·2 answers
  • 2. Which test for iron(II) ions is conclusive ​
    14·2 answers
  • How far does Mrs. Spencer live if she drives home with a speed of 1.5 kilometers and it takes her 25 minutes to get home? It’s f
    14·1 answer
  • Which model of the atom is thought to be true?
    12·1 answer
  • 1) Which of the following statements about gases is false?
    14·1 answer
  • What is the smallest whole-number coefficient for h₂s when the equation h₂s mno₄⁻ → mn²⁺ so₄²⁻ is balanced in acidic solution?
    8·1 answer
  • Freezing a candy bar is an example of a physical change. <br> True or false
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!