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3 years ago

Which part of the molecule has a partial positive charge? Which part has a partial negative charge?

Chemistry

1 answer:

son4ous [18]3 years ago

3 0

Answer:

partial negative is O(oxygen) and partial positive is (H) Hydrogens

Explanation:

Because the molecule has covalent bonds, all charges are partial.

Partial negative is O(oxygen) and partial positive is (H) Hydrogens.

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Can anyone help me with this?

Triss [41]

7.) Carbon-14 is a radioactive isotope of carbon. The half-life of carbon-14 is approximately 5,730 years. The short half-life of carbon-14 means it cannot be used to date fossils that are allegedly extremely old, e.g. dinosaurs the evolution alleges lived millions of years ago. Levels of carbon-14 become difficult to measure and compare after about 50,000 years (between 8 and 9 half lives; where 1% of the original carbon-14 would remain undecayed).

8.)

6 0

3 years ago

Methane gas and oxygen gas react to form water vapor and carbon dioxide gas. What volume of carbon dioxide would be produced by

Bas_tet [7]

Answer:

$V_{CO_2}=9.23m^3$

Explanation:

Hello,

In this case, the undergoing chemical reaction is:

$CH_4(g)+2O_2(g)\rightarrow CO_2(g)+2H_2O(g)$

Now, as the stoichiometrical factors are in terms of mole but no information about neither the temperature nor the pressure is given, by means of the Avogadro's law, one could perform the stoichiometric calculations with the given volume as both the pressure and temperature remain the same, that is:

$V_{CO_2}=9.23m^3CH_4*\frac{1m^3CO_2}{1m^3CH_4} \\\\V_{CO_2}=9.23m^3$

Such 1:1 volume relationship equals the 1:1 molar relationship given in the chemical reaction in terms of their stoichiometric coefficients, therefore, the yielded volume of carbon dioxide is also 9.23m³

Best regards.

4 0

4 years ago

en un recipiente se tiene 800 g de una solución al 35% en masa de ácido sulfuroso, de la cual se evapora 80ml de agua. ¿cuál es

Alinara [238K]

The mass percent of sulfurous acid in the new solution : 38.9%

<h3>Further explanation</h3>

<em>In a container you have 800 g of a 35% by mass solution of sulfurous acid, from which 80 ml of water evaporates. What is the mass percent of sulfurous acid in the new solution? data: density of water is 1g / ml.</em>

<em />

solution 1

composition :

35% acid :

$\tt 0.35\times 800~g=280~g$

water :

$\tt 800-280=520~g$

solution 2(new solution)

composition :

water

$\tt 520-(80~ml\times 1~g/ml)=440~g$

Total mass of new solution after water evaporated

$\tt 280(acid)+440(water)=720~g$

%mass of acid in a new solution

$\tt \dfrac{280}{720}\times 100\%=38.9\%$

5 0

3 years ago

Which one of the following substances is a solution?

Nostrana [21]

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7 0

3 years ago

Read 2 more answers

Describe the properties of noble gases. Based on their electronic arrangement, explain whether they can exist alone in nature.

Marizza181 [45]

The properties of noble gases include:

They are nonreactive
They have hight ionisation energy
They have low boiling point
They conduct electricity at low pressure.

The noble gases are those elements that makes up the group 18 of the periodic table.

They are non as the inert gases because they are relatively nonreactive.

According to the electronic arrangement, which is according to how the electrons are arranged on their shells, they can exist alone.

The noble gases are nonreactive, have high ionisation energy and low boiling point because in its electronic arrangement, the outer shell is completely full.

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brainly.com/question/19874646

3 0

3 years ago