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
brilliants [131]
3 years ago
7

What are the charges of the subatomic particles and where are they located in an atom?

Chemistry
1 answer:
Stella [2.4K]3 years ago
7 0
There is 3 subatomic particles that form an atom 1.) Protons 2.) Neutrons 3.) Electrons and they are located in the Nucleus :) 
You might be interested in
If a 0.320 mM solution of MnO41- has an absorbance of 0.480 at 525 nm in a 1.000 cm cell. What is the concentration of a MnO41-
larisa [96]

Answer:

Hence the concentration of a MnO41- solution that has absorbance of 0.490 in the same cell at that wavelength is 0.3266.

Explanation:

Now A = el, el=const

Then,

A2 / A1 = C2/ C1\\\\0.49/ 0.48 = C2 / 0.32\\\\C2 = 0.3266

3 0
3 years ago
Which agent of erosion can create a limestone cave?
Ivanshal [37]
Water containing carbonic acid and calcium
5 0
3 years ago
A student is instructed to make 1 L of a 2.0 M solution of CaCl2 using dry salt. How should he do this?
Pachacha [2.7K]
<span>The student should follow following steps to make 1 L of </span>2.0 M CaCl₂.<span>
<span>
1. First he should calculate the number of moles of 2.0 M CaCl</span></span>₂ in 1 L solution.<span>

</span>Molarity of the solution = 2.0 M<span>
Volume of solution which should be prepared = 1 L

Molarity = number of moles / volume of the solution

Hence, number of moles in 1 L = 2 mol

2. Find out the mass of dry CaCl</span>₂ in 2 moles.<span>

moles = mass / molar mass

Moles of CaCl₂ = 2 mol</span><span>
Molar mass of CaCl₂ = </span><span>110.98 g/mol

Hence, mass of CaCl</span>₂ = 2 mol x <span>110.98 g/mol
                                     = 221.96 g

3. Weigh the mass accurately 

4. Then take a cleaned and dry1 L volumetric flask and place a funnel top of it. Then carefully add the salt into the volumetric flask and finally wash the funnel and watch glass with de-ionized water. That water also should be added into the volumetric flask.

5. Then add some de-ionized water into the volumetric flask and swirl well until all salt are dissolved.

<span>6. Then top up to mark of the volumetric flask carefully. 
</span>
</span>
7. As the final step prepared solution should be labelled.
4 0
2 years ago
Which of the following solids would not decompose on heating​
Gekata [30.6K]

Answer:

Anhydrous sodium carbonate is stable to heat and does not decompose even when it is heated to redness. This is because sodium carbonate salt on heating with acids react to release carbon dioxide.

5 0
2 years ago
What is the potential energy of a 2-kg book sitting on a shelf 2 meters above<br> the ground?
lys-0071 [83]

Answer:

Explanation:

<u><em>What is the potential energy of a 2-kg book sitting on a shelf 2 meters above the ground?</em></u>

<em></em>

PE = MGH, that is, potential energy = mass x gravity x height.

2*2*9.8=

39.2 joules

8 0
2 years ago
Other questions:
  • Octane, c8h18, is a component of fuel used in internal combustion engines. the dominant intermolecular forces in octane are
    8·1 answer
  • Based on your answer to part c, how many bonding electrons and nonbonding electrons are there in the lewis structure of hcn? ent
    5·1 answer
  • Combustion of hydrocarbons such as decane () produces carbon dioxide, a "greenhouse gas." Greenhouse gases in the Earth's atmosp
    6·1 answer
  • What is a sensory neuron?
    7·1 answer
  • One of the reagents below gives predominantly 1,2 addition (direct addition) while the other gives predominantly 1,4 addition (c
    5·2 answers
  • How many atoms are in 25.0 moles of calcium (Ca)?
    10·1 answer
  • How many hydrogen atoms are in 89.5 g of<br> C6H6 ?<br> Answer in units of atoms.
    8·1 answer
  • What is the molarity of 5.63 moles of lithium in 3.25 liters of solution
    5·1 answer
  • (will give brainliest) show your work. How many grams of Copper(I) nitrate, CuNO3 are required to produce 88.0 grams of aluminum
    8·1 answer
  • Limestone (CaCO₃) is used to remove acidic pollutants from smokestack flue gases. It is heated to form lime (CaO), which reacts
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!