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Norma-Jean [14]
3 years ago
6

How does the amount of space between particles differ in the ballon and helium cylinder

Chemistry
1 answer:
Ivanshal [37]3 years ago
8 0
In a balloon there is a low pressure within the balloon. This means that the particles are more spaced out. Wheras in the cylinder they are under high pressure, meaning that the particles are much closer together!
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Name four products of incomplete combustion<br><br> 1 - ____<br> 2 -____<br> 3 -____<br> 4 -_____
faltersainse [42]

Answer:

Carbon Monoxide / Carbon Dioxide / Sulfur  and Nitrogen Dioxide

Explanation:

3 0
3 years ago
Why wouldn't two cations form a covalent bond?
Allushta [10]

Answer:

Covalent bonding is the sharing of electrons between atoms. In addition, the ionization energy of the atom is too large and the electron affinity of the atom is too small for ionic bonding to occur.

For example: carbon does not form ionic bonds because it has 4 valence electrons, half of an octet.

Explanation:

4 0
3 years ago
Calculate the pH after the addition of 10.0 mL of 0.240 M sodium hydroxide to 50.0 mL of 0.120 M acetic acid.
Goryan [66]

Answer:

pH = 4.58

Explanation:

The reaction of NaOH with acetic acid, CH₃COOH occurs as follows:

NaOH + CH₃COOH → CH₃COO⁻Na⁺ + H₂O

<em>Moles that react:</em>

NaOH = 10mL = 0.010L * (0,240mol / L) = 0.0024 moles NaOH

CH₃COOH = 50.0mL = 0.050L * (0.120mol / L) = 0.0060 moles CH₃COOH

That means after the reaction you will have:

CH₃COOH: 0.0060 mol - 0.0024 mol = 0.0036 moles

CH₃COO⁻Na⁺: 0.0024 moles

in solution, you will have the mixture of a weak acid (Acetic acid), with its conjugate base (sodium acetate, CH₃COO⁻Na⁺). And pH of this buffer can be determined using H-H equation:

pH = pKa + log [A⁻] / [HA]

For Acetic buffer pKa = 4.76:

pH = 4.76 + log [CH₃COO⁻Na⁺] / [CH₃COOH]

<em>Where [] is molarity of each species or moles</em>

<em />

Replacing:

pH = 4.76 + log [0.0024 moles] / [0.0036 moles]

<h3>pH = 4.58</h3>

<em />

6 0
3 years ago
A sample of carbon dioxide occupies a volume of 2.50 liters at 100 kPa pressure. What pressure would the gas exert if the volume
ira [324]

Answer:

333.33 KPa

Explanation:

P1V1=P2V2

p2=P1v1/v2

p2= (2.50 L* 100 kPa)/0.75 L

P2=333.33 kPa

4 0
3 years ago
Can metal be recognised as a good heat shield? why or why not?? ​
Molodets [167]

Explanation:

Convection requires a fluid material that can move around. Typically, metals are solid, not fluid, and therefore do not participate in convection. ... This means that metal can be either a good heat shield, a mediocre heat shield, or a bad heat shield, depending on how we use it.

3 0
3 years ago
Read 2 more answers
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