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
PLEASEEEEEEEE ASAPPPPPWhat is the density of a piece of cardboard that has a mass of 250 g and volume of 46 mL? *
trapecia [35]
HEELP ME HELP ME HELP ME HELP ME HELP ME
6 0
3 years ago
Read 2 more answers
Give the chemical formula and systematic name for aurous sulfide, which is named using the older nomenclature. spelling counts!
Bingel [31]
Aurous is a cation of gold. Gold takes the name "aurum" (Au) with atomic number of 79. In its purest form, the element is bright, slightly yellow, soft, ductile, and malleable. The charge of aurous is +1. Sulfide, on the other hand, has a charge of -2. 

Hence, the chemical formula of the compound is Au₂S and its systematic name is gold (I) sulfide. 
5 0
3 years ago
Please dont answer if you dont know.​<br>It's the parts of a wave
Marina86 [1]
Answer:

1) wavelength
2) trough
3) amplitude
4) crest

Explanation:

Hope this helps!
5 0
3 years ago
How many moles are in 135g of Teflon?
Oliga [24]

1.34 moles are in 135g of Teflon.

Explanation:

Molecular formula of teflon is (C2H4)n

mass of teflon = 135 grams

atomic mass of teflon = 100.01 gram/mole

number of moles of teflon = ?

Formula used to calculate number of moles in a substance is given as:

number of moles = \frac{mass}{atomic mass of 1 mole}

putting the values in the above equation:

number of moles = \frac{135}{100.01}

number of moles = 1.34 moles

Teflon is polymer which is used for making non-stick coating, in 135 grams of teflon there are 1.34 moles in it.

5 0
3 years ago
Help me pleaseeeeeeeeeeeeeeeeeeeeeeeeeeeeeee this 10 points answer the ones i didnt answer
xxMikexx [17]
42cubic centimeter are in the block
volume is 48
4 0
3 years ago
Other questions:
  • A sample containing 1.20 moles of Ne gas has an initial volume of 7.50 L. What is the final volume of the gas, in liters, when e
    8·1 answer
  • 1. How many hydrogen atoms are in 5 molecules of isopropyl alcohol, C3H7O
    8·2 answers
  • Which metal atom below cannot form a cation of several different charges?
    13·1 answer
  • A substance whose water solution is a good conductor of electricity is an ________
    11·1 answer
  • Which is true about each element in a period or horizontal row of the periodic table?
    10·1 answer
  • The indicator dilution method is a technique used to determine flow rates of fluids in channels for which devices like rotameter
    7·1 answer
  • A chemical reaction is carried out in a closed container. the energy absorbed by the chemical reaction is 100 kj. What is the en
    13·1 answer
  • The balanced equation for photosynthesis is shown below.
    12·1 answer
  • 7. Allicin, C6H65,0, is the compound that gives garlic its odor. A sample of allicin contains 3.0 X 1021 atoms of carbon. How ma
    6·1 answer
  • N2 + 3H2 → 2NH3 △H = -92 kJ / mol
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!