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
Alexxx [7]
2 years ago
15

2) Phenolphthalein (C20H1404) is a dye very commonly used as indicator in acid-base titrations. The simplified

Chemistry
1 answer:
just olya [345]2 years ago
5 0

Answer:

methyl orange is an indicator

You might be interested in
2CO (g) + O2 (g) → CO2 (g)<br><br> How many grams of O2 are needed to react with 6.64 L of CO2?
allsm [11]

,12.3

Dgrdhc xhyh ghcz dhn tub

8 0
3 years ago
Why must humans find substitutes for many minerals found on Earth? (A) form at an extremely slow rate (B) controlled by other co
DochEvi [55]

The correct answer is C, too deep in the Earth to collect. Hope this helps!

3 0
3 years ago
KOH +HBr KBr+ H2O<br><br> Which is the acid in this reaction?
Allisa [31]

Answer:

HBr Potassium bromide

5 0
3 years ago
Read 2 more answers
Hafnium has six naturally occurring isotopes: 0.16% of 174Hf, with an atomic weight of 173.940 amu; 5.26% of 176Hf, with an atom
ser-zykov [4K]

Answer:

177.277amu

Explanation:

the total occuring isotopes for Hafnium is =6.

First isotope had an atomic weight of 173.940amu

Second isotope =175.941amu

Third isotope =176.943amu

Fourth isotope=177.944amu

Fifth isotope. =178.946amu

sixth isotope .179.947amu

<em>Avera</em><em>ge</em><em> </em><em>ato</em><em>mic</em><em> </em><em>wei</em><em>ght</em><em> </em><em>of</em><em> </em><em>Haf</em><em>nium</em><em>=</em><em> </em><em>sum</em><em> </em><em>of</em><em> </em><em>all</em><em> </em><em>the </em><em>atomi</em><em>c</em><em> </em><em>weights</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>iso</em><em>topes</em><em>/</em><em> </em><em>Tota</em><em>l</em><em> </em><em>occu</em><em>ring</em><em> </em><em>isotopes</em>

Thus, 173.940amu+175.941amu+176.943amu+177.944amu+178.946amu+179.947amu.= 1063.661amu

Average atomic weight= 1063.661amu /6 = 177.2768333amu

= 177.277amu to 3 decimal places.

6 0
2 years ago
How would this atomic structure change if you built an atom of Krypton which has an atomic number of 36?
jenyasd209 [6]

Answer:

Explanation:

d

5 0
2 years ago
Other questions:
  • In a mixture of helium and chlorine, occupying a volume of 14.6 l at 871.7 mmhg and 28.6oc, it is found that the partial pressur
    10·1 answer
  • Which of the following statements is true?
    12·2 answers
  • if 14g of ethene reacts with excess amount of steam to give 17.25g of ethanol what is the percentage yield
    10·1 answer
  • Is table salt an example of a substance?
    14·1 answer
  • Which particle has the same mass as a neutron?
    11·2 answers
  • Give the formula of a reagent which will form a
    9·1 answer
  • Please help me...thank you so much..
    6·1 answer
  • If you decreased the volume of a sample of gas by a factor of three while maintaining a constant
    11·2 answers
  • Which of the following is one way to prevent air pollution ill give brainiest if you don't copy the answers from the first perso
    15·1 answer
  • What is gadolinium<br><br> And what would be a superpower that relates to it
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!