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
shtirl [24]
3 years ago
7

Los átomos que no poseen _______________ son conocidos como _________________ ________________. Los átomos que poseen carga se d

enominan ________________, aquellos con carga positiva de llaman_________________ y son aquellos que _________ electrones. Los__________________ son aquellos con carga negativa y son los que ______________ electrones. Para todos los casos el valor de ______ y _________ permanecen iguales y son los que sacamos de la tabla periódica.
Chemistry
1 answer:
irakobra [83]3 years ago
5 0

Answer:

La respuesta está en la explicación

Explanation:

Los átomos que no poseen ___<em>CARGA</em>____ son conocidos como ____<em>ÁTOMOS</em>____ ____<em>NEUTROS</em>_____. Los átomos que poseen carga se denominan ___<em>IONES</em>____, aquellos con carga positiva de llaman ____<em>PROTONES</em>____ y son aquellos que __<em>PIERDEN</em>__ electrones. Los ______<em>ANIONES</em>____ son aquellos con carga negativa y son los que _____<em>GANAN</em>___ electrones. Para todos los casos el valor de _<em>MASA</em>__ y _<em>NÚMERO ATÓMICO</em>_ permanecen iguales y son los que sacamos de la tabla periódica.

You might be interested in
Why is it important that sulfur dioxide is not released into the atmosphere?
Ne4ueva [31]

Answer:

Acid rain.

Explanation:

8 0
3 years ago
Your task is to create a buffered solution. You are provided with 0.10 M solutions of formic acid and sodium formate. Formic aci
Anton [14]

Answer:

15.2mL of the 0.10M sodium formate solution and 4.8mL of the 0.10M formic acid solution.

Explanation:

To find the pH of a buffer based on the concentration of the acid and conjugate base we must use Henderson-Hasselbalch equation:

pH = pKa + log [A⁻] / [HA]

<em>Where [A⁻] could be taken as moles of the sodium formate and [HA] moles of the formic acid</em>

<em />

4.25 = 3.75 + log [A⁻] / [HA]

0.5 = log [A⁻] / [HA]

3.162 = [A⁻] / [HA] <em>(1)</em>

<em></em>

As both solutions are 0.10M and you want to create 20mL of the buffer, the moles are:

0.10M  * 20x10⁻³L =

2x10⁻³moles = [A⁻] + [HA] <em>(2)</em>

Replacing (2) in (1):

3.162 = 2x10⁻³moles - [HA] / [HA]

3.162 [HA] = 2x10⁻³moles - [HA]

4.162[HA] = 2x10⁻³moles

[HA] = 4.805x10⁻⁴ moles

[A⁻] = 2x10⁻³moles - 4.805x10⁻⁴ moles = 1.5195x10⁻³moles

That means, to create the buffer you must add:

[A⁻] = 1.5195x10⁻³moles * (1L / 0.10mol) = 0.0152L =

<h3>15.2mL of the 0.10M sodium formate solution</h3>

[HA] = 4.805x10⁻⁴ moles * (1L / 0.10mol) = 0.0048L =

<h3>4.8mL of the 0.10M formic acid solution</h3>
4 0
3 years ago
NEED HELP ASAP!!!
Alexxx [7]

At room temperature oxygen, O_2 is present in the gas phase.

A gas is defined as a substance which is characterized by the rapidly movement of molecules which are widely separated. The shape and volume of gas is not definite that is they take on the shape of the container in which it is placed. The gas molecules have minimum inter-nuclear attractions and thus have high kinetic energy.

Thus, the sentences that describes oxygen at room temperature are:

  • It has no definite volume and takes the shape of its container.
  • Its particles move fast enough to overcome the attraction between them.
  • It has more energy than it would be at a cooler temperature as the kinetic energy is directly proportional to the temperature that is kinetic energy increases on increasing the temperature.

6 0
3 years ago
What is a change in the arrangement of bases in a gene called?????
Jobisdone [24]
Asexual reproduction.<span>
</span>
4 0
3 years ago
Read 2 more answers
PLEASE HELP!!!!
shtirl [24]
1) d

2) b because the independent variable is the thing you change/control in an experiment

3) c because the dependent variable is the thing being measured in an experiment

4)hmm it might be d, as c and a are both correct as different sized feeders would make it an unfair test and different types of food would as well

5) c

6) a

7) b obviously because if he activated them at different times then the ones activated last would have an advantage

6 0
3 years ago
Other questions:
  • Chemistry is not always as simple as we are learning it, of course. Many times, reactions are linked, and the products of one re
    11·1 answer
  • Three of the following statements are wrong. One is correct. Which of the following statements is correct?
    6·1 answer
  • A certain substance X has a normal boiling point of 134.5°C and a molal boiling point elevation constant =Kb1.36·°C·kgmol−1 . Ca
    6·1 answer
  • Explain why the term recycling is an excellent description of plate tectonics
    7·1 answer
  • Calculate the shortest wavelength of the electromagnetic radiation emitted by the hydrogen atom in undergoing a transition from
    10·1 answer
  • Read the volume of the fluid of the graduated cylinder above. Note that each interval is equal to 0.2ml
    6·1 answer
  • How many atoms are in 0.00100 mole of Na?
    13·2 answers
  • How many atoms are in 3.50 moles of copper (11) chloride
    11·1 answer
  • Which of these represents low pitch<br> sound?
    8·1 answer
  • Convert 3.79 x 10^24 atoms of sodium to grams
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!