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STALIN [3.7K]
3 years ago
9

Nonpolar materials have separated positive and negative areas. True False

Chemistry
1 answer:
azamat3 years ago
6 0

Answer:

False

Explanation:

This equal distribution of electrons means that the molecule has no separate positive and negative areas (nonpolar). It has polar and nonpolar properties; has an ionic end that will dissolve in water and a long hydrocarbon portion that will dissolve in oily dirt.

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Gaseous ammonia chemically reacts with oxygen o2 gas to produce nitrogen monoxide gas and water vapor. Calculate the moles of ni
Sergio [31]

Answer: 0.050 moles of nitrogen monoxide are produced by 0.050 moles of ammonia.

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

The balanced chemical reaction is:

4NH_3(g)+5O_2(g)\rightarrow 4NO(g)+5H_2O(g)

According to stoichiometry:

4 moles of ammonia produce = 4 moles of nitrogen monoxide

Thus 0.050 moles of ammonia produce =\frac{4}{4}\times 0.050=0.050 moles of nitrogen monoxide

7 0
3 years ago
Calculate the concentration (in m) of hydroxide ions in a solution at 25. 0 °C with a poh of 3. 58.
Reika [66]

The concentration (in M) of hydroxide ions in a solution at 25°C with a pOH of 3.58 is 2.6 × 10⁻⁴ M.

pOH is the measure of basic nature of a solution by evaluating the [OH⁻] concentration.

It is the negative logarithm of the hydroxide ion concentration.

Given,

pOH = 3.58

Temperature = 25°C = 298K

At 25°C, the relation of pOH and [OH⁻] concentration is as follows:

∴ pOH = -log [OH⁻]

⇒ 3.58 = -log [OH⁻]

⇒log [OH⁻] = -3.58

⇒ [OH⁻] = antilog (-3.58)

⇒[OH⁻] = 2.6 × 10⁻⁴ M

The concentration (in m) of hydroxide ions in a solution at 25.0 °C with a pOH of 3. 58 is 2.6 × 10⁻⁴ M.

Learn more about pOH here, brainly.com/question/17144456

#SPJ4

3 0
2 years ago
What is the definition of lava?
Tanzania [10]

Answer:

Lava, magma (molten rock) emerging as a liquid onto Earth's surface. The term lava is also used for the solidified rock formed by the cooling of a molten lava flow.

Explanation:

6 0
3 years ago
NH4OH+HCLO4<br> Total ionic
Serggg [28]

Answer:

OH^-(aq)+H^+(aq)\rightarrow H_2O(l)

Explanation:

Hello there!

In this case, according to the given reactants, it is firstly necessary to set up the complete molecular reaction:

NH_4OH(aq)+HClO_4(aq)\rightarrow NH_4ClO_4(aq)+H_2O(l)

Now, by knowing that ionic species are able to ionize, we are able to write the complete ionic equation:

NH_4^++OH^-+H^++ClO_4^-\rightarrow NH_4^++ClO_4^-+H_2O(l)

Whereas ammonium and chlorate ions are spectator ions because they remain the same on both sides of the equation. Therefore the total or net ionic equation would be:

OH^-(aq)+H^+(aq)\rightarrow H_2O(l)

Best regards!

5 0
3 years ago
Have a good day today:) 100 free pts!
Naddik [55]

:o really? thank you so much!

5 0
3 years ago
Read 2 more answers
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