Final answer:
A protein's structure is determined by its amino acid sequence, which is encoded by the DNA sequence of a gene. The DNA sequence is translated into a protein through a process involving transcription and translation, followed by folding of the amino acid chain into its final structure.
Explanation:
The structure of a protein is critical to its function, and this structure is determined by the sequence of amino acids that make up the protein. This sequence of amino acids is directly dictated by the DNA sequence of a gene.
The process of translating DNA information into the structure of a protein follows the Central Dogma of Molecular Biology, which entails the conversion of DNA code into RNA (transcription), and then RNA into a protein (translation). The amino acid sequence then folds into a three-dimensional structure, which is essential for the protein's function.
Key to understanding this process is recognizing that the DNA sequence is comprised of codons, groups of three nucleotides that correspond to specific amino acids.
Through the actions of ribosomes and transfer RNA molecules, these codons are read and the appropriate amino acids are assembled in the correct order, resulting in a polypeptide chain.
This chain then undergoes folding, sometimes with assistance from other proteins called chaperones, to achieve its final functional form.
Fossils provide evidence that
1) Life on earth millions of years ago was more complex than life is today
2) The changes that will occur in species in the future are easy to predict
3)Many species of organisms that lived long ago are now extinct
4)Most species of organisms that lived long ago are exactly same today
PLEASE HELP MEDALS WILL BE AWARDED!!!
To prevent a condition called the “bends”, deep sea divers breathe a mixture containing, in mole percent, 10.0% O2, 10.0% N2 , and 80.0% He.
a. Calculate the molar mass of this mixture.
b. What is the ratio of the density of this gas to that of pure Oxygen?,
Which of the following is a characteristic of most non-metals and is not a characteristic of most metals?
A. Replaces the hydrogen in acids to form stable compounds
B. Is malleable and ductile
C. Has a negative charge when a current is run through its solution
D. Can conduct electricity and heat
Answer: Option (C) is the correct answer.
Explanation:
Non-metals are the substances which gain electrons in order to gain stability and hence they form anions.
Some properties of non-metals are as follows.
Non-metals are bad conductors of heat and electricity. They are brittle in nature.Non-metals have non-shiny surface.But non-metals when gain an electron they they acquire a negative charge. Hence, when non-metal is present in ionic form in a solution then it is able to conduct electricity.
Thus, we can conclude that has a negative charge when a current is run through its solution is a characteristic of most non-metals and is not a characteristic of most metals.
Suppose there are two known compounds containing generic X and Y. You have a 1.00g sample of each compound. One sample contains .34g of X and the other contains .44g of X. Identify plausible sets of formulas for the two compounds
Why do some molecules begin sticking together when you add in more molecules?
Some molecules begin sticking together when you add in more molecules because like attracts like and opposites repel.
What is molecules?A collection of two and more substances joined through chemical bonds is still referred to as a molecule.
What is like attracts like?like attracts like means It is repulsive when two items with identical charges interact. That is fascinating to watch how two objects with opposing charges interact.
Some molecules begin sticking together when you add in more molecules because like attracts like and opposites repel
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If 3.0×105 j of heat are added to the ice, what is the final temperature of the system?
Part A (7 points): How many grams of iron (Fe) will be produced if you start with 3.65 liters of carbon monoxide gas (CO) at STP?
Part B (3 points): Jacob performed the above experiment in his chemistry class, and collected 4.23 grams of iron. What is the percent yield?
Fe2O3 + 3 CO --> 2 Fe + 3 CO2
The given balanced chemical equation is,
[tex] Fe_{2}O_{3} + 3CO -->2 Fe (s) + 3CO_{2}(g) [/tex]
Part A:
Converting 3.65 L CO to moles:
[tex] 3.65 L * \frac{1 mol}{22.4 L} = 0.163 mol CO [/tex]
Moles of Fe that will be produced from 0.163 mol CO:
[tex] 0.163 mol CO * \frac{2 mol Fe}{3 mol CO} = 0.1086 mol Fe [/tex]
Mass of Fe = [tex] 0.1086 mol Fe * \frac{55.85 g}{1 mol} = 6.07 g Fe [/tex]
Part B: Actual yield of Fe = 4.23 g Fe.
Theoretical yield = 6.07 g Fe
Percentage yield = [tex] \frac{Actual yield (g)}{Theoretical yield (g)}*100 [/tex]
=69.7 %
How to calculate C02 molecules in 5.24x10 -2?
When ammonium carbonate is heated, water, ammonia, and carbon dioxide are produced. what type of chemical reaction is occurring? write formulas for the reaction products?
Final answer:
Ammonium carbonate decomposes when heated, resulting in water, ammonia, and carbon dioxide. The balanced chemical equation for this reaction is (NH4)2CO3(s) → 2 NH3(g) + CO2(g) + H2O(l). This is an example of a decomposition reaction.
Explanation:
When ammonium carbonate is heated, a decomposition reaction occurs, resulting in the formation of water (H2O), ammonia (NH3), and carbon dioxide (CO2). The balanced chemical equation for this reaction is:
(NH4)2CO3(s) → 2 NH3(g) + CO2(g) + H2O(l)
The formulas for the reaction products are ammonia (NH3), carbon dioxide (CO2), and water (H2O). This chemical equation shows that for each mole of ammonium carbonate heated, two moles of ammonia, one mole of carbon dioxide, and one mole of water are produced.
If a doughnut contains 1.8 moles of sugar (C6H12O6), how many sugar molecules are in a box of one dozen doughnuts?
Answer:
130.1 x 10²³ molecules of sugar
Explanation:
One dozen = 12 donuts
1 doughnut = 1.8 moles of sugar
12 doughnut = (1.8 x 12) moles of sugar = 21.6 moles of sugar
1 mole of any substance contains Avogadro’s number (6.023 x 10²³) of molecules.
1 mole of sugar = 6.023 x 10²³ molecules of sugar
21.6 moles of sugar = (6.023 x 10²³ x 21.6) molecules of sugar
= 130.1 x 10²³ molecules of sugar
Answer:
A.) 130.032 x 10^23
Explanation:
I got it correct on founders edtell
When the following equation is balanced with the lowest whole number coefficients possible, what is the coefficient in front of Ca(OH)2? Ca(OH)2 + H3PO3 yields H2O + Ca3(PO3)2
Ans: Lowest coefficient in front of Ca(OH)2 is 3
Given equation:
Ca(OH)2 + H3PO3 → Ca3(PO3)2 + H2O
Reactants: Products:
Ca = 1 Ca = 3
O = 5 O = 7
H = 5 H = 2
P = 1 P = 2
Balanced equation:
3Ca(OH)2 + 2H3PO3 → Ca3(PO3)2 + 6H2O
In an experiment, a plant was given __________ containing a heavy isotype of oxygen (18o), and the heavy oxygen atoms were used to make sugar. view available hint(s) in an experiment, a plant was given __________ containing a heavy isotype of oxygen (18o), and the heavy oxygen atoms were used to make sugar. water carbon dioxide chlorophyll oxygen gas
Write a balanced chemical equation depicting the formation of one mole of h2o2(g) from its elements in their standard states. express your answer as a chemical equation. identify all of the phases in your answer.
Consider the chemical equilibrium of the following reaction
CH3COOH mc015-1.jpg CH3COO– (aq) + H+(aq)
What will happen to the chemical equilibrium of the solution if CH3COONa is added?
The equilibrium will shifts to the right.
The equilibrium will shifts to the left.
The equilibrium will be unaffected.
The equilibrium will be lost.,
Answer:
The Equilibrium will shift to the left.
Explanation:
The reaction at equilibrium is as follow,
CH₃COOH ↔ CH3COO⁻ + H⁺
According to Le Chatelier's Principle," When a system (reaction) at equilibrium is subjected to any stress (like change in Concentration, Pressure, Temperature e.t.c) the system (reaction) tends to adjust itself in such a way so as to minimize the effect of that change".
Hence, in above reaction when Sodium Acetate (source of CH₃COO⁻) is added the equilibrium will shift in left side and will decrease the concentration of CH₃COO⁻ions.
Final answer:
The addition of CH₃COONa, which contributes more acetate ions, will result in a leftward shift of the chemical equilibrium of the reaction CH₃COOH ⇌ CH₃COO⁻ (aq) + H⁺(aq), as predicted by Le Chatelier's principle.
Explanation:
When CH₃COONa is added to the solution, the chemical equilibrium of the reaction CH₃COOH ⇌ CH₃COO− (aq) + H⁺(aq) will shift. This is because CH₃COONa disassociates in water to form sodium ions (Na⁺) and acetate ions (CH₃COO⁻). By Le Chatelier's principle, adding more of a product (in this case, CH₃COO⁻) will shift the equilibrium to the left, towards the reactants, to counteract the change. This results in a decrease in the H+ concentration and is known as the common ion effect.
The equilibrium will therefore shift toward the formation of CH₃COOH, causing the concentration of CH₃COO⁻ and H⁺ to be reduced, which is in line with Le Chatelier's principle of equilibrium adjustment.
What type of polymer is made by bonding an alkene to one or more alkanes or alkenes?
an addition polymer, because your continuing the chain
A chemical that will ignite spontaneously in air at a temperature of 130 degree fahrenheit (54.4 degree celsius) or below is identified by the term _____.
A reaction has an equilibrium constant of 6.5×103 at 298 K. At 764K , the equilibrium constant is 0.44.
Find ΔHorxn for the reaction.,
Using the van't Hoff equation and the provided equilibrium constants at two different temperatures, the enthalpy change (ΔHrxn) of the reaction can be calculated.
Explanation:The student wants to find the change in the heat content, or enthalpy change (ΔHrxn), of a reaction given the equilibrium constants at different temperatures. This can be done through the van't Hoff equation, which relates the equilibrium constant (K) to temperature (T) and enthalpy change (ΔHrxn). Using the provided equilibrium constants at 298 K and 764 K, as well as the constants 55.7 x 103J/mol and 8.314 J/mol K, we can set up and solve the van't Hoff equation to calculate ΔHrxn.
The van't Hoff equation is ln(K2/K1) = (-ΔHrxn/R)(1/T1 - 1/T2), where R is the ideal gas constant (8.314 J/mol K). By rearranging for ΔHrxn, we can input the given values for K1, K2, T1, and T2 to determine the enthalpy change for the reaction.
What is most plastic made of?
SELECT ALL THAT APPLY
- inorganic compounds
- organic compounds
- petroleum or coal materials
- carbon containing compounds
- synthetic materials
The plastic is a polymer. A polymer is defined as a substance which is made from the monomers. The plastic is made of petroleum or coal materials. The correct option is D.
What is plastic?The wide range of synthetic or semi synthetic materials which use polymers as a main ingredient is defined as the plastic. The property plasticity makes it possible for the plastics to be moulded or pressured into objects of various shapes.
Most of the modern plastics are from the fossil fuel based chemicals such as natural gas or petroleum. The raw materials like natural gas, oil or plants are refined into ethane and propane. Both of these molecules are subjected to a process called cracking.
As a result of cracking, ethane and propane changes into ethylene and propylene. These materials are combined to form many polymers.
Thus the correct option is D.
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Determine the percent composition by mass of the element carbon in the acetamide compound
(Fe(s)+CuSO4(aq)--FeSO4(aq)+Cu(s) this chemical equation represents a ___________ reaction
Answer : This chemical equation represents a single replacement reaction.
Explanation :
Single replacement reaction : It is defined as the reaction in which the most reactive metal displace the least reactive metal form its solution.
The given balanced chemical reaction is:
[tex]Fe(s)+CuSO_4(aq)\rightarrow FeSO_4(aq)+Cu(s)[/tex]
The given chemical reaction is a single replacement reaction because in this reaction, iron is most reactive metal than the copper. So, iron can displace the copper metal form its solution and it forms iron (II) sulfate and copper as a product.
Hence, the chemical equation represents a single replacement reaction.
What type mirror is this?
concave
plane
convex
parabolic
Sulfur reacts with oxygen to form sulfur dioxide (so2(g), hf = –296.8 kj/mol) according to the equation below. what is the enthalpy change for the reaction? use . –593.6 kj –296.8 kj 296.8 kj 593.6 kj
Sulfur reacts with oxygen to form sulfur dioxide (SO₂(g), hf = –296.8 kj/mol) according to the equation below. The enthalpy change for the reaction is –296.8 kj.
What is enthaply?It is a thermodynamic quantity that is equal to the total heat content of a system. It is equal to the internal energy of the system plus the product of pressure and volume.
Enthalpy is nothing but energy and they are of 4 types in thermodynamics-
1. Internal Energy, U
2. Heat enthalpy, H
3. Helmholtz enthalpy, A
4. Gibb's Free enthalpy, G
The total energy of a system cannot be measured directly because the internal energy contains components that are unknown, not easily accessible, or are not of interest in thermodynamics.
Enthalpy change for reaction = Enthalpy of formation of SO₂ - Enthalpy of formation of O₂
Enthalpy of formation of O₂ = 0
Therefore, Sulfur reacts with oxygen to form sulfur dioxide (SO₂(g), hf = –296.8 kj/mol) according to the equation below. The enthalpy change for the reaction is –296.8 kj.
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Jasmine is a cook, and she wants to buy new equipment. She is presented with dishes made of copper, clay, plastic, and glass. She selects the copper pot because she does most of her cooking on the stove. Which explains why she most likely chose copper?
what is the molality of a 10.5% by mass glucose (C6H12O6) the density of the solution is 1.03 g/ml. i got up to m = 0.058281527 mol/ kg... please help !!!!,
Nonpolar molecules that cluster away from water molecules are called __________ molecules.
Hydrophobic molecules are nonpolar molecules that cluster away from water molecules. They have nonpolar covalent bonds and examples include oil, fats, and waxes.
Explanation:Nonpolar molecules that cluster away from water molecules are called hydrophobic molecules. Hydrophobic molecules typically have nonpolar covalent bonds, which means the electronegativity difference between the bonded atoms is minimal. This leads to an absence of partial charges on the atoms, resulting in overall nonpolarity. Examples of hydrophobic molecules include oil, fats, and waxes.
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Which of the following is the correct name for the compound mgbr2? magnesium bromate magnesium bromide magnesium dibromide magnesium (1) bromide
Final answer:
The correct IUPAC name for MgBr2 is 'magnesium bromide', where 'magnesium' denotes the metal cation and 'bromide' denotes the nonmetal anion with its ending changed to 'ide'.
Explanation:
The correct name for the compound MgBr2 is magnesium bromide. According to the International Union of Pure and Applied Chemistry (IUPAC) system of nomenclature, binary ionic compounds (compounds consisting of a metal and a nonmetal) are named by writing the name of the metal (the cation) followed by the name of the nonmetal (the anion) with its ending changed to 'ide'. In our case, 'Mg' stands for magnesium, and 'Br' stands for bromine; when combined in the compound MgBr2, the bromine becomes bromide. The prefix 'di' is not used in this name because the stoichiometry (the ratio of Mg to Br) is inferred by the charges on the ions; magnesium has a +2 charge and bromine has a -1 charge, so two bromine atoms are required to balance the charge of one magnesium atom.
When 10.0 mL of the 0.50 M solution is diluted to 100 mL as shown, what is the new concentration?,
In this problem, we are asked to find the new concentration.
So, we use the dilution equation;
M1V1 = M2V2
Where M1 = concentration in molarity (moles/Liters) of the concentrated solution,
V2 =volume of the concentrated solution,
M2 =concentration in molarity of the dilute solution, and
V2 = volume of the dilute solution.
Before substituting the formula, convert the given mL to L since the unit for molarity is (moles/Liter).
Use the conversion factor (1000 mL = 1 L), so:
10.0 mL = 0.01 L
100 mL= 0.1 L
Now, we substitute the given (in liters) to the formula.
(0.50 M) (0.01 L) = M2(0.1 L)
M2 = [(0.50 M) (0.01 L)] / 0.1 L
M2 = 0.05 M
Answer: 0.050
Explanation:
What happens to the concentration of the reactants and products during the course of a forward chemical reaction
Neon has 10 electrons and krypton has 18 electrons which element do you think has a greater chance of forming a momentary dipole and why
Neon (Ne) has a greater chance of forming a momentary dipole due to its completely filled outer electron shell.
Explanation:The element with a greater chance of forming a momentary dipole is neon (Ne). Neon has a completely filled outer electron shell, which makes it inert and less likely to form chemical bonds. This means that when neon interacts with other elements, it can induce temporary dipole moments in the other atoms or molecules, creating momentary attractions between them.
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#1: When you heat an air-filled balloon, what happens inside with regard to the movement of air molecules?
A. The collisions of air molecules against the wall of the balloon are weaker.
B. The collisions of air molecules against the wall of the balloon are stronger.
C. The collisions of air molecules against the wall of the balloon do not change.
**my answer: B
is that right?? @aaronq :)