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
alina1380 [7]
3 years ago
6

Ted used a balance scale to weigh a 2.233 g sample of copper sulfate. Which of these measurements made by Ted is the most accura

te?
Chemistry
1 answer:
Vika [28.1K]3 years ago
6 0
There’s only one measurement the question doesn’t make sense
You might be interested in
Which of the following isoelectronic series is correctly ranked from largest ionic radius to smallest ionic radius? 1. N 3−, O 2
love history [14]

Answer:

<u>Option 1</u>:  N⁻³ > O⁻² > F⁻ > Na⁺ > Mg⁺²    

Explanation:

<u>Ionic radius is the radius of an atom´s ion in ionic crystal structure</u>.<u> </u><u><em>In an ion that lose an electron, to form a cation, the radius of the ion gets smaller</em></u><em>, </em>because the repulsion between electrons decrease because fewer electrons are present. Conversely, <u><em>adding on electron to a neutral atom, to form an anion, causes electron - electron repulsions to increase, so the size of the radius of the ion gets bigger.</em></u>                  

<u><em>Isoelectronic species are ions or elements that have the same number of electrons in their electronic shells but have different overall charges, because of their different atomic numbers</em></u>.                        

<u><em>In a isolelectronic series (same number of electrons),</em></u> <u><em>the increase of the positive charge (given by the number of protons in the nucleus), will cause a decrease in radius </em></u>beacuse the greater electrostatic attraction between the electrons and the nucleus. Consequently, the ion with the greatest nuclear charge will have the smallest ionic radius and the ion with the smallest nulear charge will have the largest ionic radius.  

<u>We will use this principle to solve our problem</u>.  

In our case, the given ions are:  

  • N⁻³ :    Z = 7,  e⁻ = 10
  • O⁻²:     Z= 8,   e⁻ =10
  • F⁻:       Z = 9,  e⁻ = 10
  • Na⁺:    Z= 11,   e⁻ = 10
  • Mg⁺²:  Z=12,   e⁻ =10

where Z= number of protons, and e⁻ = number of electrons.

<em><u>Hence the decreasing order of ionic radius is:</u></em>

N⁻³ > O⁻² > F⁻ > Na⁺ > Mg⁺²  

Have a nice day!

4 0
3 years ago
What else is produced during the replacement reaction of silver nitrate and potassium sulfate?
Hatshy [7]

Answer: I think this is it. I really havnt done science/Chemistry  in a while.

2KNO3

Explanation:

5 0
3 years ago
Read 2 more answers
Large amounts of energy are required to join two atom's nuclei into a single nucleus and, in turn, create a new element. What is
laila [671]

Answer:  fusion

Explanation:

Nuclear fission : It is defined as a process which involves the conversion of a heavier nuclei (which is an unstable nuclei) into two or more small nuclei (which is a stable nuclei) along with release of high amounts of energy.

Example: The energy released from the process of nuclear fission which is converted into electrical energy that is used in our homes and factories.

Nuclear fusion : It is defined as a process which involves the conversion of two small nuclei to form a heavy nuclei along with release of energy.

Example: It occurs in sun and stars where the isotopes of hydrogen called as  Tritium and Deuterium combine together to form a neutron and a helium atom.

4 0
3 years ago
Read 2 more answers
Compared to pure water, an aqueous solution of calcium chloride has what?
V125BC [204]
It has a higher boiling point and a lower freezing point
8 0
3 years ago
How do you name these compounds?
8090 [49]
1) is right
2) lead(ii) phosphate
3) iron(iii)sulfate
4) lead(ii)oxide
5) lead sulfate
6) copper iodide
7) lead oxide
8 0
3 years ago
Other questions:
  • Which of the following is a reasonable ground-state electron configuration?
    15·2 answers
  • Consider the combustion of octane (C8H18)
    14·1 answer
  • Question 1
    12·1 answer
  • Pure substance can be __ and __
    14·1 answer
  • An ion of iron has an 26 protons, 30 neutrons, and 23 electrons. What are its atomic number, atomic mass, and net charge?
    15·1 answer
  • Sedimentation increases with an increase in land used for agriculture.
    9·1 answer
  • An unknown compound contains only C, H, and O. Combustion of 6.10 g of this compound produced 14.9 g of CO₂ and 6.10 g of H₂O. W
    5·1 answer
  • A molecular orbital is a region of space in a covalent species where electrons are likely to be found. The combination of two at
    8·1 answer
  • Which of the following are true about both the sun and the stars? Choose the three correct answers.
    7·1 answer
  • We can find ___________ inside the proton​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!