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levacccp [35]
2 years ago
9

What is the density of carbon dioxide gas if 0.196g occupies a volume of 100mL?

Chemistry
1 answer:
-BARSIC- [3]2 years ago
7 0

We know that the equation for density is:

D=\frac{m}{V}

where D is the density, m is the mass in grams, and V is the volume.

Given two of the variables, we can then solve for density:

D=\frac{0.196g}{100mL}= \frac{0.00196g}{mL}

So therefore, we now know that the density of carbon dioxide gas is 0.00196g/mL.

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Suggest why some manufacturers of car and jewellery would use metal alloys instead of pure metals?
nika2105 [10]
I think using metal alloys would be better than using the pure metal would cut down on the amount of gases that are released in the air.
6 0
3 years ago
Complete and balance the precipitation reactions. Include physical states. Refer to the solubility rules as necessary. precipita
Tcecarenko [31]

The balanced chemical reactions are:

AgNO{_3}(aq) \ + \ NaCl(aq) \rightarrow \ AgCl(s) \ + NaNO_{3}(aq)\\2K_{3}PO_{4}(aq) \ + 3MgCl_{2}(aq) \rightarrow \ 6KCl(aq) \ + Mg_{3}(PO_{4})_{2}(s)

Further Explanation:

The following reactions will undergo double displacement where the metal cations in each compound are exchanged and form new products.

For reaction 1, the compounds involved are nitrates and chlorides. To determine the states of the products, the solubility rules for nitrates and chlorides must be followed:

  • All nitrates are generally soluble.
  • Chlorides are generally soluble except AgCl, PbCl2, and Hg2Cl2.

Therefore, the products will have the following characteristics:

  • silver chloride (AgCl) is insoluble
  • sodium nitrate (NaNO3) is soluble

For reaction 2, the compounds involved are phosphates and chlorides. The solubility rules for phosphates and chlorides are as follows:

  • Phosphates are generally insoluble except for Group 1 phosphates.
  • Chlorides are generally soluble except for AgCl, PbCl2, and Hg2Cl2.

Hence, the products of the second reaction will have the following characteristics:

  • potassium chloride (KCl) is soluble
  • magnesium phosphate is insoluble

Insoluble substances are denoted by the symbols (s) in a chemical equation. The soluble substances are denoted as <em>(aq).</em>

Learn More

  1. Learn more about solubility brainly.com/question/1163248
  2. Learn more about solubility rules brainly.com/question/1447161
  3. Learn more about net ionic equations brainly.com/question/12980075

Keywords: solubility rules, precipitation reaction

3 0
3 years ago
Select all the correct answers.
8_murik_8 [283]

There should be a sufficient amount of the selected isotope in the rock.

The half-life of the isotope must be long enough to capture the age of the rock.

Explanation:

Sully must consider two main aspect before selecting her choice isotope for dating.

There must be sufficient amount of the selected isotope in the rock.

The half - life of the isotope must be long enough to capture the age of the rock.

  • Radiometric dating gives a rock an absolute numerical age.
  • The half-life of an isotope is time take for half of a radioactive element to decay.
  • If the half-life of an isotope is very short, all the parent nuclide would have turned to daughter nuclides.
  • Also, we must have sufficient amount of both the daughter and parent isotope in the selected rock.

learn more:

Radiometric dating brainly.com/question/7022607

#learnwithBrainly

7 0
2 years ago
Explain why space junk is a hazard to an astronats or spacecraft
Pie

Answer:

Space junk is travelling so fast that a collision with an astronaut or a spacecraft could be disastrous.

Explanation:

Space junk orbits the Earth at speeds of about 28 000 km/h.  

That's so fast that even an orbiting fleck of paint has enough kinetic energy to cause impact craters on the surface of a spacecraft. They are even more dangerous to an astronaut on a space walk.

Much of the space debris is larger and more dangerous than a fleck of paint.

One rough estimate of the amount of space debris is

<em>       </em><u>Size</u><em>        </em>        <u>Number of objects</u>

< 1 cm                        200 000 000

1 cm to 10 cm                   700 000

> 10 cm                                 30 000

Satellites, etc.                       18 000

The chances of collision are small, but any collision can be disastrous.

3 0
3 years ago
si el calor fuese un fluido ¿en algun momento se agotaria después de que dos objetos se frotaran mutuamente?​
rjkz [21]

Si el calor fuese un fluido no se agotaría, solamente cambiaría su forma o localización.

<h3>¿Qué ocurre cuando dos objetos con diferente temperatura están en contacto?</h3>

Cuando dos objetos de diferente temperatura están en contacto el calor fluye del objeto con mayor temperatura o más caliente, al objeto con menor temperatura o más frío. Esto ocurre hasta que ambos objetos alcanzan la misma temperatura.

<h3>¿Qué sucede con el calor?</h3>

El calor o energía termina se disipa hacia el entorno o la atmosfera cuando un cuerpo se enfría o hacia otro cuerpo si hay transferencia de calor, sin embargo, el calor no desaparece debido a la ley de la conservación de la energía y materia.

<h3>¿Qué sucedería si el calor fuera un fluido?</h3>

Si el calor fuera un fluido este fluido no desaparecería ni se agotaría, solamente se podría disipar a la atmósfera o ambiente.

Aprenda más sobre calor en: brainly.com/question/15890992

8 0
2 years ago
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