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3 years ago

Chlorine reacts with sodium and with hydrogen.

Chemistry

1 answer:

Sonbull [250]3 years ago

3 0

Answer:

Sodium Chloride has Ionic bond while Hydrogen Chloride has covalent bond.

Explanation:

Na has 11 electrons (2, 8, 1) and need to give away 1 electron to be stable

Cl has 17 electrons ( 2, 8, 7) and needs 1 electron to be stable.

Na transfers 1 electron to CL to form Ionic bond.

While

Hydrogen has 1 electron and shares with Chlorine to be stable.

Covalent bond involves sharing.

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Polypeptides and proteins must fold properly to be functional. Hydrogen bonds between the oxygen and nitrogen atoms of the pepti

Lubov Fominskaja [6]

Answer:

Secondary structure

Explanation:

Stricture of proteins can be categories into 4

Primary structure, secondary structure, tertiary structure and quaternary structure.

Primary structure are polypeptide chains. The polypeptide chains are formed by amino acids held together by peptide bonds.

Secondary structure refers to the folding of polypeptides chains. Two most common secondary structures are alpha helix and beta pleated structure. These folding occurs because of hydrogen bonding between the oxygen of the carbonyl of one amino acid and the hydrogen of another amino acid.

Therefore, hydrogen bonding is crucial for secondary structure of the protein.

4 0

4 years ago

The following reaction shows the products when sulfuric acid and aluminum hydroxide react.

SSSSS [86.1K]

Answer:

There will remain 11.47 grams of Al(OH)3

Explanation:

Step 1: Data given

Mass of sulfuric acid = 35.0 grams

Molar mass sulfuric acid = 98.08 g/mol

Mass of aluminium hydroxide = 30.0 grams

Molar mass of aluminium hydroxide = 78.0 g/mol

Step 2: The balanced equation

2Al(OH)3 + 3H2SO4 → Al2(SO4)3 + 6H2O

Step 3: Calculate moles

Moles = mass / molar mass

Moles Al(OH)3 = 30.0 grams / 78.0 g/mol

Moles Al(OH)3 = 0.385 moles

Moles H2SO4 = 35.0 grams / 98.08 g/mol

Moles H2SO4 = 0.357 moles

Step 4: Calculate the limiting reactant

For 2 moles Al(OH)3 we need 3 moles H2SO4 to produce 1 mol Al(SO4)3 and 6 moles H20

H2SO4 is the limiting reactant. It will completely be consumed ( 0.357 moles). Al(OH)3 is in excess. There will be react 2/3 * 0.357 = 0.238 moles

There will remain 0.385 - 0.238 = 0.147 moles

Mass of Al(OH)3 remaining = 0.147 moles* 78.0 g/mol = 11.47 grams

There will remain 11.47 grams of Al(OH)3

6 0

3 years ago

The volume of hcl gas required to react with excess magnesium metal to produce 6.82 l of hydrogen gas at 2.19 atm and 35.0 Â°c i

Musya8 [376]

The answer would be 34

8 0

3 years ago

Read 2 more answers

Describe two ways in which the gender based violence law protects citizens against human rights violations

Furkat [3]

Answer:

Gender based violence law protects citizens against human right violation. The laws protects mostly females due to them being the weaker gender and them being taken undue advantage.

The law protects females from raape and gives them an equal opportunity with the male gender in every aspect of life. They are protected against violence and genital mutilation.

3 0

4 years ago

Please solve this question

sammy [17]

Answer:

b) it gets accumulated in the respiratory system which then halts or slows down the supply of oxygen to the brain hence leading to death

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4 years ago