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3 years ago

What arrangement of electrons would result in a nonpolar molecule

Chemistry

1 answer:

alexdok [17]3 years ago

3 0

For an arrangement of electrons to be nonpolar in a molecule they need to have equal electron charges.

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It is advised that the bromobenzene solution be added slowly to the magnesium-ether solution so that it isn't present in a high

lara [203]

Answer:

Biphenyl

Explanation:

The reaction of bromo benzene with magnesium-ether solution yields a Grignard reagent.

The byproduct of this reaction is biphenyl. It is formed when two unreacted bromobenzene molecules are coupled together.

Hence, It is advised that the bromobenzene solution be added slowly to the magnesium-ether solution so that it isn't present in a high concentration, thus reducing the amount of biphenyl by-product formed.

4 0

3 years ago

Use this chemical equation to answer the following questions: Cl + O3 ➞ ClO + O2

barxatty [35]

Explanation:

1. Elements are substances made of the same kind of atoms, unlike compounds that are combination for different kinds of atoms. The elements in the reaction therefore are;

Cl and O₃

2. Yes, the equation is balanced. There is the same number of each element on either side of the equation. One (1) CL and three (3) O atoms.

3. Ozone is reduced. Other the other hand, Cl is oxidized. Remember a reduction reaction may involve the loss of one or more oxygen atoms or the acceptance of electrons. This occurs for O₃ which is reduced to O₂.

4. The equation complies with the conservation of matter as in the first law of thermodynamics. The number of atoms for each element on the other side of the equation remains the same. This means no matter(which also translated to energy) has been created or destroyed in the process.

4 0

3 years ago

How many grams of NaCL are required to prepare 50ml of a 2.0 molar solution

Ksivusya [100]

Answer:

5.85 gm.

Explanation:

We know that,

Normality = Molarity × Molecular weight

Equivalent weight

Since molecular weight of NaCl= equivalent weight = 23+35.5 =58.5

Normality of NaCl= molarity=2

Now,

Normality= weight in gram ×1000

Volume ×equivalent weight

Weight in gram is given by,

=Normality × Volume × equivalent weight

1000

= 2× 50 × 58.5

1000

=5.85 gm.

4 0

4 years ago

Portland cement concrete (PCC) has a density of 150 lb/ft3. How many kilograms of PCC are required to cast a cylindrical column

Ksivusya [100]

Answer:

Mass, m = 19466.7 kg

Explanation:

Given that,

Portland cement concrete (PCC) has a density of 150 lb/ft³

We need to find how many kilograms of PCC are required to cast a cylindrical column 1.15 m in diameter and 7.8 m in height.

Since, 1 kg = 2.205 lb

1 lb/ft³ = 16.018 kg/m³

150 lb/ft³ = 2402.77 kg/m³

Density, $d=\dfrac{m}{V}$

m is mass of PCC in kg and V is volume of cylinder

$m=d\times V$

$m=d\times \pi r^2 h\\\\m=2402.77\times \pi \times (1.15/2)^2\times 7.8\\\\m=19466.70\ kg$

So, the mass of PCC required is 19466.7 kg.

5 0

3 years ago

Need help with questions 1 & 2 please even if you give me a hint ❤️

Fed [463]

For Number 1, the rate changes multiple times. Some times it goes up .4 and sometimes it remains the same. I think you may need to check you work to get a more fluent flow for rate of change.

6 0

3 years ago