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4 years ago

4. Nitrogen gas has strong bonds, but weak forces. Discuss this statement by including the

Chemistry

1 answer:

Tcecarenko [31]4 years ago

3 0

Answer:

I could help but I don't understand the question

Explanation:

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Setler [38]

Alkali metals is chemicals elements found In the Periodic tables Alkali metals have included Sodium Potassium Rubidium Cesium And Francium as for Earth metals they are beryllium magnesium calcium strontium barium and radium.

3 0

4 years ago

Read 2 more answers

In a folded protein, most of the nonpolar amino acids are buried inside the protein fold, whereas the polar and charged side cha

ExtremeBDS [4]

Answer:

Hydrophobic amino acids

Explanation:

Hydrophobic amino acids are the amino acids which do not reside in the aqueous environment. These amino acids are generally buried within hydrophobic core of protein or the protein fold or lie in lipid portion of membrane.

Hydrophobic, as the term implies - hydro means water and phobic means fearing. These amino acids have little or almost no polarity in side chains. This lack of polarity make them water fearing.

4 0

3 years ago

Measurements show that unknown compound has the following composition: element mass 62.1 % carbon, 10.5 % hydrogen and 27.6 % ox

barxatty [35]

Answer:

C3H6O

Explanation:

The percentage composition of the elements in the compound are given as follows:

62.1 % carbon = 62.1g of C

10.5 % hydrogen = 10.5g of H

27.6 % oxygen = 27.6g of O

Next, we convert each mass to mole by dividing by their molar/atomic mass

C = 62.1/12 = 5.175mol

H = 10.5/1 = 10.5mol

O = 27.6/16 = 1.725mol

Next, we divide each mole value by the smallest mole value (1.725)

C = 5.175mol ÷ 1.725 = 3

H = 10.5mol ÷ 1.725 = 6.086

O = 1.725mol ÷ 1.725 = 1

The empirical ratio approximately of C:H:O is 3:6:1, hence, the empirical formula is C3H6O

8 0

3 years ago

Give an example of an internal variation.

Anna11 [10]

ENSO hope this help

4 0

3 years ago

A gas is formed in the reaction shown below. The gas laws can help determine the volume of gas produced.

Tasya [4]

Considering the definition of molar mass, the number of moles of Zn reactant used is 2 moles.

<h3>Definition of molar mass</h3>

The molar mass of substance is a property defined as its mass per unit quantity of substance, in other words, molar mass is the amount of mass that a substance contains in one mole.

<h3>Number of moles of Zn used</h3>

The balanced reaction is:

Zn(s) + 2 HCl(aq) → ZnCl₂ + H₂(g)

Assume that 130.8 grams of Zn was used in this reaction.

To determine the number of moles of hydrogen gas formed, you need to know the number of moles of Zn reactant was used.

So to determine the number of moles used you know that the molar mass of Zn is 65.37 $\frac{g}{moles}$ . Then: