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
Olegator [25]
3 years ago
14

A precipitation reaction is caused by mixing 100. mL of 0.25 M K2Cr2O7 solution with 100. mL of 0.25 M Pb(NO3)2 solution. When t

he precipitate forms, it is filtered from the mixture.Which describes the changes in concentration of the spectator ions K+ and NO3- in the reaction mixture as the reaction occurs?K+ is doubled, NO3- halvedNeither is affectedK+ is halved, NO3- halvedBoth are doubled
Chemistry
1 answer:
Sergeeva-Olga [200]3 years ago
8 0

Answer:

Neither is affected

Explanation:

The reaction occurs as follows:

K₂Cr₂O₇ + Pb(NO₃)₂ → PbCr₂O₇ + 2K⁺ + 2NO₃⁻

That means per mole of reaction you will have two moles of both K⁺ and NO₃⁻.

But volume is also doubled, doing that concentration of spectator ions doesn't change.

Right answer: Neither is affected

I hope it helps!

You might be interested in
How does the reactivity of nonmetals change as you move from left to right across the periodic table?
Rudiy27

Answer:

Metallic character refers to the level of reactivity of a metal. Non-metallic character relates to the tendency to accept electrons during chemical reactions. Metallic tendency increases going down a group. Non-metallic tendency increases going from left to right across the periodic table.

Explanation:

I hope this helps :)

4 0
3 years ago
What do you think the scientific question is for the<br> boiling water experiment
Mila [183]

Answer:

Scientific Question: ... I will boil water and add a substance like salt to see if the boiling point increases.

4 0
3 years ago
How do you convert ounces to grams
jok3333 [9.3K]
However many ounces you have, just multiply that by 28.34952. The answer to that is the conversion. so 5 ounces is 141.7476. Proof below.

4 0
3 years ago
Read 2 more answers
Were would you be if all the stars you see are circumpolar
8_murik_8 [283]
At the Earth's North Pole, the north celestial pole is directly overhead, and all stars that are visible at all (that is, all stars in the northern celestial hemisphere) are circumpolar. As one travels south, the north celestial pole moves towards the northern horizon
3 0
3 years ago
How does heat affect the motion of atoms?
Black_prince [1.1K]
Due to heat , the kinetic energy of the atoms in the substance increases due to which they start vibrating vigorously and the inter-molecular attraction decreases and the substance increases in volume. For example, on boiling water...heat energy imparted makes the volume increase and finally turn into steam or water vapour in air.(The inter-molecular space in air is more than that in water.)
3 0
3 years ago
Other questions:
  • How does the skin protect your internal organs from the outside world?
    9·1 answer
  • Calculate the concentration (m) of sodium ions in a solution made by diluting 80.0 ml of a 0.174 m solution of sodium sulfide to
    15·1 answer
  • Whats is not a characteristic of the eye of a hurricane
    8·2 answers
  • What element is being oxidized<br><br> Fe2O3 + 3CO -&gt; 2FE +3C02
    6·1 answer
  • A solution containing a mixture of 0.0333 M0.0333 M potassium chromate ( K2CrO4K2CrO4 ) and 0.0532 M0.0532 M sodium oxalate ( Na
    15·1 answer
  • If 10.28 g of Cu(NO3)2 are obtained from the reaction of 4.54 g of Cu with excess HNO3, what is the percent yield of the reactio
    15·1 answer
  • The diagram shows a ball that is dropped and allowed to bounce.
    8·2 answers
  • PLEASE HELP MEEE I WILL MARK BRAINLIST FOR THIS ITS SUPER SIMPLE....BUT U MUST TYPE EVERYTHING
    6·2 answers
  • PLeaseee ITS Timedddd + BrainlIESTT
    15·1 answer
  • I'll pay someone to do my chemistry work.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!