Answer:
The answer to your question is: letter A
Explanation:
a.Strong electrical forces will make ionic compounds have high boiling points. This option is correct because ionic bonds are strong which makes substances have high boiling points.
b.Strong electrical forces will make ionic compounds have weak bonds. This option is false, ionic compounds have strong bonds.
c.A low amount of energy is needed to break the bonds in ionic compounds. The high amount of energy is needed to break ionic bonds.
d.Gravitational forces hold the bonds together in ionic compounds. Gravitational forces do not affect the ionic compounds.
Answer:
The oxygen will appear in the final stage if the oxygen is excess from the beginning.
Explanation:
1. C +(1/2)O2 —> CO
2. CO+(1/2)O2—> CO2
The first stage explains that the oxygen is limited and hence CO is produced.
The 2nd stage explains that if the oxygen is excess, then CO2 will be produced.
The overall reaction when oxygen is excess is given by:
C + O2 —> CO2
Answer:
As more discovers were made, Whittaker proposed classifying organisms into five Kingdoms
An alpha helix which is 18 amino acids long will have 12 hydrogen bonds.
<h3>What is alpha helix (α-helix) ?</h3>
The alpha helix (α-helix) is a common in the secondary structure of proteins and is a right hand-helix conformation in which every backbone N−H group hydrogen bonds to the backbone C=O. group of the amino acid located four residues earlier along the protein sequence.
The alpha helix is stabilized by hydrogen bonds (shown as dashed lines) from the carbonyl oxygen of one amino acid to the amino group of a second amino acid.
Because the amino acids connected by each hydrogen bond are four apart in the primary sequence, these main chain hydrogen bonds are called "n to n+4.
Learn more about protein structure here ;
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Answer:
It shows the change in concentration of a reactant or product per unit of time, expressed as mol/(L · s)
Explanation:
The reaction rate is the speed at which a chemical reaction proceeds.
So if the reaction rate is the speed at which a chemical reaction happens/occurs, then the reaction rate will tell us about the concertation of the chemicals. It shows the change in concentration of a reactant or product per unit of time, expressed as mol/(L · s)
