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
frosja888 [35]
3 years ago
9

What products result from mixing aqueous solutions of Cr(NO3)2(aq) and NaOH(aq)? Question 10 options: Cr(OH)2(s), Na+(aq), and N

O3−(aq) Cr(OH)2(s) and NaNO3(s) Cr2(OH)2(aq) and NaNO3(aq) Cr(OH)2(aq) and NaNO3(s) Cr(OH)2(s), N2(g), and H2O(l)
Chemistry
1 answer:
Alecsey [184]3 years ago
4 0

Answer:

Cr(OH)2(s), Na+(aq), and NO3−(aq)

Explanation:

Let is consider the molecular equation;

2NaOH(aq) + Cr(NO3)2(aq) -----> 2NaNO3(aq) + Cr(OH)2(s)

This is a double displacement or double replacement reaction. The reacting species exchange their partners. We can see here that both the sodium ion and chromium II ion both exchanged partners and picked up each others partners in the product.

Sodium ions and nitrate ions now remain in the solution while chromium II hydroxide which is insoluble is precipitated out of the solution as a solid hence the answer.

You might be interested in
Which of the following statements holds true for a chemical change?
ad-work [718]

Answer : The correct option is C.

Explanation :

Chemical change : It is defined as a change in which a new compounds are formed by the chemical reaction. Changes occurs in their chemical composition and properties.

The molecular structure of a substance changes in a chemical reaction is a chemical change.

  • Change in molecular structure means that there is a breaking and formation of bonds in a molecule.

The example of chemical change in terms of change in molecular structure is the reaction of hydrogen with oxygen.

The reaction of hydrogen with oxygen is,

H_2(g)+O_2(g)\rightarrow 2H_2O(l)

In this reaction, the H-H bond is break and O-H bond is form.


6 0
3 years ago
Read 2 more answers
The second stage of photosynthesis produces _____ and _____.
lukranit [14]
The second stage of photosynthesis also called Calvin stage produces glucose

5 0
3 years ago
Read 2 more answers
Sound wave a has lower frequency than sounds wave b but both waves have the same amplitude . What must also be true of these two
Nady [450]

Explanation:

Higher the frequency smaller will be the wavelength. Higher frequency have shorter wavelength and lower frequency waves have larger wavelength. Also, Beats are formed by the superposition of two waves with slightly different frequencies but with similar amplitudes. In time, waves switch between constructive interference and disruptive interference, giving the resultant wave a time-varying amplitude.

8 0
3 years ago
Read 2 more answers
Calculate the average atomic mas of an unknown element that has two naturally-occurring isotopes.
professor190 [17]
The average atomic mass if the element above is calculated by the sum of the product of the isotope abundance and its atomic mass unit. It is expressed as:

Average atomic mass = Σ xi(Mi)
<span>Average atomic mass = (.7547 x 248.7) + (.2453 x 249.4) = 248.87
</span>
Hope this helps.
8 0
3 years ago
Read 2 more answers
Deval drew the models of particles in a substance shown below. Which model best represents the particles in solid
adell [148]

Answer:

it would be the second one thank me later

Explanation:

5 0
2 years ago
Other questions:
  • Which of the following is a product formed when Ag2O decomposes
    5·1 answer
  • Need help !!!!! Stuck asap
    7·1 answer
  • Summarize the rules for the allowable values of the four quantum numbers of an electron in an atom.
    13·1 answer
  • I don’t understand this, can you help me?
    8·1 answer
  • 1. The underlined portion of the chemical formula above is the _____ and it represents ____________________.
    15·2 answers
  • Convert 1.88•10^-6g to milligrams
    15·1 answer
  • How does a full octet affect trends among the noble gases?
    7·2 answers
  • Calculate the mass of NaCl needed to make 40% solution from 3kg of water ? Could you explain step by step please :-)
    12·1 answer
  • In this diagram, medium A represents water and medium B represents air. The phenomenon in this diagram, moving from A to B, is c
    15·1 answer
  • NEED HELP! An experiment _____. must always be done in a laboratory is best done if only one variable is tested for at a time ca
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!