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
nexus9112 [7]
3 years ago
15

Identify the precipitation reaction in the set?

Chemistry
1 answer:
Harlamova29_29 [7]3 years ago
4 0

Answer:

The third reaction

(2NaOH + NiCL2 ---> 2NaCl + Ni(OH)2)

Explanation:

By definition, a precipitation reaction refers to the formation of an insoluble salt when two solutions containing soluble salts are combined.

(Source: lumenlearning)

From the 4 options, we can eliminate the first and second one immediately because there is no formation of an insoluble salt.

Then, the last one can also be eliminated because even though there is insoluble solid formed, but it is not a salt, and, the reactants are not solutions too. In fact, the last one is a displacement reaction. A more reactive metal displaces a less reactive metal to form an ion.

Since the third reaction matches the definition of precipitation reaction, this is the answer.

You might be interested in
The maximum kinetic energy of a box sliding from the top of a ramp to the bottom is A) at the top. B) at the bottom. C) at the e
Readme [11.4K]

Kinetic energy of an object can be expressed in terms of its mass m and velocity v as:

KE = 1/2 * m* v²

Thus higher the velocity, greater will be the Kinetic energy. Now, as the box moves along a ramp from top to bottom, its velocity increases and so does the KE. Hence, kinetic energy is maximum at the bottom

Ans B) at the bottom


8 0
3 years ago
Read 2 more answers
What is the diffrence between acidic and basic solutions in working with redox reactions?
Leno4ka [110]
In acidic solutions you have H+ but in basic solutions you have OH-.
You need know that for to balance the reaction.
3 0
3 years ago
Question - Complete and balance the following chemical equations:
Mekhanik [1.2K]
Answer is because
Please give feedback
6 0
2 years ago
How many H2O molecules are in 183.2 grams of H20 gas?
jek_recluse [69]

Answer: There are 61.24 \times 10^{23} molecules present in 183.2 grams of H_{2}O gas.

Explanation:

Given: Mass = 183.2 g

Number of moles is the mass of substance divided by its molar mass.

As molar mass of water is 18 g/mol. Therefore, moles of H_{2}O are calculated as follows.

Moles = \frac{mass}{molar mass}\\= \frac{183.2 g}{18 g/mol}\\= 10.17 mol

According to the mole concept, there are 6.022 \times 10^{22} molecules present in one mole of a substance.

Hence, molecules present in 10.17 moles are calculated as follows.

10.17 mol \times 6.022 \times 10^{23}\\= 61.24 \times 10^{23}

Thus, we can conclude that there are 61.24 \times 10^{23} molecules present in 183.2 grams of H_{2}O gas.

6 0
3 years ago
According to the concept of the tragedy of the commons, what happens to shared resources over time?
Maslowich
I would believe the answer to this question is D. According to the concept of the tragedy of the commons, shared resources are used by more than one organism. Due to the large consumption of shared resources they start to be fewer and fewer in number and over time if we are not careful they will be depleted.
5 0
3 years ago
Read 2 more answers
Other questions:
  • 3. All the following steps need to be followed when naming alkanes, except A. locating the longest carbon chain. B. using prefix
    12·1 answer
  • If nitrogen and hydrogen combine in a synthesis reaction, what would the product of the reaction be? n2 + 3h2 → 3
    5·2 answers
  • Which of the following is an example of a decomposition reaction? 1) H2 + O2 ----------→ H2O 2) MgO2 -------------→ Mg + O2 3) M
    15·1 answer
  • A scientist discovers a new substance. The molecules of the substance form hydrogen bonds with each other. When the molecules lo
    10·2 answers
  • Please help me with this and explain! Thank you so much. Best answer gets Brainliest <3
    13·1 answer
  • How do nicotine and tobacco cause cancer?
    9·1 answer
  • A substance is examined under a high-power electron microscope. The substance is found to contain only one type of atom.
    12·1 answer
  • How many atoms are in a mole of atoms
    11·1 answer
  • A chemical reactions is shown. How many different elements and total atoms are involved in the reaction?
    14·1 answer
  • The element hydrogen contains particles of
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!