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hram777 [196]
3 years ago
13

The reaction below was carried out in an acidic solution.

Chemistry
1 answer:
scZoUnD [109]3 years ago
7 0

Answer:

Although it is unbalanced, it can be balanced by using the half-reaction method  

Explanation:

Skeleton half-reaction:                         IO₃⁻ ⟶ I₂

Balance atoms other than O and H: 2IO₃⁻ ⟶ I₂

Balance O:                                           2IO₃⁻ ⟶ I₂ + 6H₂O

Balance H:                                           2IO₃⁻  + 12 H⁺ ⟶ I₂ + 6H₂O

Balance charge:                                 2IO₃⁻  + 12 H⁺ + 10e⁻ ⟶ I₂ + 6H₂O

A and C are wrong. The original equation is not balanced. It has 3 O on he left and none on the right.

D is wrong. You can't balance any equation by using spectator ions.

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Given any two elements within a group, is the element with the larger atomic number likely to have a larger or smaller atomic ra
zhenek [66]

Answer:

Atomic radius of sodium = 227 pm

Atomic radius of potassium = 280 pm

Explanation:

Atomic radii trend along group:

As we move down the group atomic radii increased with increase of atomic number. The addition of electron in next level cause the atomic radii to increased. The hold of nucleus on valance shell become weaker because of shielding of electrons thus size of atom increased.

Consider the example of sodium and potassium.

Sodium is present above the potassium with in same group i.e, group one.

The atomic number of sodium is 11 and potassium 19.

So potassium will have larger atomic radius as compared to sodium.

Atomic radius of sodium = 227 pm

Atomic radius of potassium = 280 pm

3 0
4 years ago
A pump contains 0.5 L of air at 203kPa. You draw back on the piston of the pump until the pressure reads 25.4kPa. What is the vo
densk [106]
<h3><u> Answer</u>;</h3>

= 4.0 L

<h3><u>Explanation;</u></h3>

Boyle's law states that the volume of a fixed mass of a gas is inversely proportional to pressure at a constant temperature.

Therefore; <em>Volume α 1/pressure</em>

<em>Mathematically; V α 1/P</em>

<em>V = kP, where k is a constant;</em>

<em>P1V1 = P2V2</em>

<em>V1 = 0.5 l, P1 =203 kPa, P2 = 25.4 kPa</em>

<em>V2 = (0.5 × 203 )/25.4 </em>

<em>     = 3.996 </em>

<em>    ≈ </em><em><u>4.0 L</u></em>

6 0
3 years ago
Some plants can reproduce both sexually and asexually. Explain one benefit of this dual reproduction capability.
pantera1 [17]

Answer:

An additional advantage of asexual reproduction is that colonization of new habitats may be easier when an individual does not need to find a mate to reproduce. During sexual reproduction the genetic material of two individuals is combined to produce genetically diverse offspring that differ from their parents.

Explanation:

An organism has many benefits for having the ability to reproduce both sexually and asexually. The first of these benefits is that it doesn't have to find a mate in order to reproduce, so it can create offspring by itself, and enable the continuation of its' species.

If you need more help on this subject, don't be afraid to ask me. I'm willing to help.

8 0
3 years ago
If a car jack's output force is 1000 N and the mechanical advantage is 6.8, what is the input force?
Travka [436]
Answer
147.06N
Explanation:
MA=Load/Effort
6.8=1000/x
Finding x you make x the subject and divide 1000 by 6.8 which is 147.06N
4 0
2 years ago
Calculate the mass of butane needed to produce 96.7 g of carbon dioxide
ella [17]
<span>31.9 grams butane needed to produce 96.7 grams CO2

</span>
5 0
3 years ago
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