Answer:
three bases
Genetic experiments showed that an amino acid is in fact encoded by a group of three bases, or codon.
Explanation:
Hope this helps
In the given question, three bases of RNA represent an amino acid.
RNA (ribonucleic acid) is a molecule that plays an important role in protein synthesis. It carries genetic information from DNA to ribosomes, where it is used to direct the assembly of amino acids into proteins.
The genetic code is the set of rules by which the sequence of nucleotides in DNA or RNA is translated into the sequence of amino acids in a protein. The code is based on the sequence of three nucleotides, known as a codon, which specifies a particular amino acid.There are 64 possible codons, but only 20 amino acids that are used to build proteins. This means that some amino acids are specified by more than one codon. For example, the amino acid leucine can be specified by six different codons: UUA, UUG, CUU, CUC, CUA, and CUG.Therefore, three RNA bases represent an amino acid.
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Describe the distribution of mass within an atom
Answer:
The nuclei of most atoms also contain neutrons . The masses of subatomic particles are very tiny. ... Since the nucleus contains protons and neutrons, most of the mass of an atom is concentrated in its nucleus. Protons and electrons have electrical charges that are equal and opposite.
There are 2 places where charge is located in the atom:
the nucleus contains neutrons (zero charge) and protons (positive charge)
Around the nucleus there are electrons located on electron shields and the charge of electrons is equal to the charge of protons in the nucleus, but have negative sign.
To sum it all up we can say that the charge of protons in the nucleus is reduced by the charge of electrons on the orbits to make the atom electrically neutral.
For the autoionization of water at 25°C, H2O(l) <---> H+ (aq) + OH-(aq)
Kw is 1.0 X 10^-14. What is (Delta Gº) for the process?
Answer:
ΔG° = 80 Kj/mole
Explanation:
ΔG° = -R·T·ln(Kw)
R = 0.008314 Kj/mol·K
T = 25°C = 298K
Kw = 1 x 10⁻¹⁴
ΔG° = -R·T·ln(Kw) -(0.08314Kj/mol·K)(298K)ln(1 x 10⁻¹⁴)
= -(0.008314)(298)(-32.2)Kj/mole
= 79.78Kj/mole ≈ 80Kj/mole (1 sig.-fig.)
The change in free energy for the autoionization of water at 25°C is -79.9 KJ
Using the formula;
ΔG = -RTlnK
ΔG = change in free energy = ?
R = gas constant = 8.314 J/K/mol
T = temperature = 298 K
K = equilibrium constant = 1.0 X 10^-14
Substituting into the given formula as;
ΔG = - (8.314 J/K/mol × 298 K × ln(1.0 X 10^-14))
ΔG = -7.99 × 10^4 J/mol or -79.9 KJ/mol
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Form of energy knows as light energy
A gas has a solubility of 1.46 g L at 8.00 atm of pressure. What is the pressure of a sample of the same gas that
contains 2.7 g/L of the dissolved gas?
Answer:
[tex]14.8\ \text{atm}[/tex]
Explanation:
[tex]C_1[/tex] = Initial concentration = 1.46 g/L
[tex]C_2[/tex] = Final concentration = 2.7 g/L
[tex]P_1[/tex] = Initial pressure = 8 atm
[tex]P_2[/tex] = Final pressure
From Henry's law we have the relation
[tex]\dfrac{C_2}{C_1}=\dfrac{P_2}{P_1}\\\Rightarrow P_2=\dfrac{C_2}{C_1}P_1\\\Rightarrow P_2=\dfrac{2.7}{1.46}\times 8\\\Rightarrow P_2=14.8\ \text{atm}[/tex]
The pressure of a sample of the same gas at the required concentration is [tex]14.8\ \text{atm}[/tex].
3. Convert 273.0 g of lead into moles.
Answer:
1.3175675675675604
Explanation:
does this need to be rounded?
HELPPPP!!! I need the CORRRECT answer
1.Which pair of properties describes the elements in Group 18?
a) They are gasseous at room tempature and chemically stable
b) they have 8 valence electrons and are stable
c) they are chemically stable and liquid at room tempature
d) they are magnetic and boil at room tempature
Answer: c
Explanation:
In a combustion reaction, pentane (molar mass (MM) = 72.17 g/mol) burns, in the presence of oxygen (MM = 32.00 g/mol), to produce carbon dioxide (MM = 44.01 g/mol) and water (MM = 18.02 g/mol).
The balanced reaction is shown here: C5H12 (l) + 8 O2 (g) à 5 CO2 (g) + 6 H2O (g)
If 4.0 mol of O2 is available, what is the maximum number of moles of water that can be produced (AKS 4f)?
A.
3.0 mol
B.
4.0 mol
C.
5.0 mol
D.
8.0 mol
E.
2.0 mol
The maximum number of mole of water that can be produced is 3 moles (Option A)
Balanced equationC₅H₁₂ + 8O₂ —> 5CO₂ + 6H₂O
From the balanced equation above,
8 moles of O₂ reacted to produce 6 moles of H₂O
How to determine the mole of water producedFrom the balanced equation above,
8 moles of O₂ reacted to produce 6 moles of H₂O.
Therefore,
4 moles of O₂ will react to produce = (4 × 6) / 8 = 3 moles of H₂O.
Thus, we can conclude that the maximum mole of water produced is 3 moles
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PLS ANSWER FAST WILL GIVE BRAINLY!!!!
dissolving sugar into coffee is a chemical change
true or false
What is the meaning of the acceleration value 9.8 m/s?????
Answer:
The value 9.8 m/s^2 is the average acceleration of a falling object due to the force of gravity on Earth. The letter g represents this value the formula v=gt. With this constant and formula, the speed of an object is calculated at the time t in seconds after it is dropped.
All objects fall at the same rate of speed due to gravity, regardless of their weight. If a small grain of sand and a bowling ball are dropped at the same time, both hit the floor at the same time. The value of g varies by one's location on the planet, ranging from 9.782 m/s^2 in the Panama Canal Zone to 9.832 m/s^2 at the Noth Pole
Explanation:
Which of the following statements is true? Running an electric current through a magnet can create a magnetic field, Electrons are found in the nucleus of an atom, The strength of a magnetic field increases with distance, Electric engines change electricity into magnestism
Answer:
running an electric current through a magnet can create a magnetic field
A mixture of Oxygen and Hydrogen occupies a pressure of 101.3kPa. The pressure of Hydrogen is 56kpa. Calculate the pressure of oxygen.
Answer:
45.3 KPa
Explanation:
From the question given above, the following data were obtained:
Total pressure (Pₜ) = 101.3 KPa
Pressure of Hydrogen (Pₕ) = 56 KPa
Pressure of Oxygen (Pₒ) =?
The pressure of oxygen in the mixture can be obtained as follow:
Pₜ = Pₕ + Pₒ
101.3 = 56 + Pₒ
Collect like terms
101.3 – 56 = Pₒ
Pₒ = 45.3 KPa
Thus, the pressure of oxygen in the mixture is 45.3 KPa
An advantage of cooking in steam is .
A. it is faster than boiling when pressure is added
B. foods are more flavorful
C. foods are more nutritious
D. All of the above.
Answer:
The answe is all of the above
something that is made of all the same atoms or groups of atoms
Answer:
Substance-I just did this
Explanation:
Something that is made of all the same atoms or groups of atoms is called element. Atoms from at least one or maybe more elements.
What is element?A substance that's unable to be converted into another substance is known as an element. Each of the approximately 100 elements has a unique form of atom. Atoms from at least one or maybe more elements are present in everything in the cosmos.
All known elements are listed in the periodic table, with those with related properties being grouped together. The majority of elements are lustrous metals that are excellent conductors of electricity. Iron, gold, and aluminum are metals that are solid at ambient temperature.
Therefore, something that is made of all the same atoms or groups of atoms is called element.
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HELPP ILL GUVE YOU LOTS OF POINTS EVERYTHING U WANT I REALLY NEED HELP
Answer:
but what is your question? it's just like the moon going around earth while earth along with all the other planets revolve around the sun
Explanation:
The equation below shows the decomposition of lead nitrate. How many molecules of PbO are produced when 11.5 g NO2 is formed?
2Pb(NO3 )2 (s) → 2PbO(s) + 4NO2 (g) + O2 (g)
Calculate heat energy
Answer:
The equation for calculating heat energy is q=mCpΔT, where q is the heat variable, m is the mass of the object, Cp is the specific heat constant and ΔT is the temperature change.
Explanation:
A chemical reaction can theoretically produce 137.5 grams of product, but it actually produced 112.9 grams. Which is the percent yield for this reaction? AKS 4f
Answer:
Explanation:
Zoom in we can't see it dude
connect them please, dont guess ill give brainiest to the FIRST answer + 29 points
Answer:
I cant see it sorry
Explanation:
Post another one
connect them, dont guess please + 23 points
Answer:
Astronaut- highly trained individual for space travel
Payload Specialist- partnering scientist, journalist, or political guest.
Space Sickness- nausea, vomiting, and upset stomach.
Muscle Atrophy- the result of microgravity.
Johnson Space Center- training facility for U.S. astronauts.
La leche se considera un alimento basico por su elevado contenido de nutrientes su densidad es de 1,4g/ml. Si se hace una compra de 7 bolsas de leche cada una con un volumen de 900m cual es la masa total de la leche expresada en kilogramos?
Answer:
8.82 kg es la masa total de leche
Explanation:
Consideraremos que el volumen de cada bolsa de leche es de 900 mL.
Sabiendo que tenemos en total 7 bolsas, el volumen final en litros que tenemos disponible es de:
900 mL . 7 = 6300 mL
Utilizando la densidad podemos calcular la masa de leche que tenemos en el total de las 7 bolsas
Densidad = masa / volumen
Densidad . volumen = masa → 1.4 g/mL . 6300 mL = 8820 g
Convertimos la masa de gramos a kg
8820 g . 1 kg /1000g = 8.82 kg
Find the pH of a solution containing [H+]=0.00003
Answer:
Acid
Explanation:
because acid has a pH of6_1
which process helps guarantee that a species continues to involve over hundreds of years?
A. growth
B. nutrition
C. reproduction
Answer:
C. reproduction
Explanation:
How many mililiters are in 0.5000 liters?
Question 6 options:
50 ml
500 ml
0.5000 ml
5,000 ml
a container of gas has a pressure of 1.45 atm at a temperature of 52 degrees celsius, if the pressure increases to 4.2 atm what would be the final temperature of the volume is held constant?
Answer:
941 K (668°C)
Explanation:
We have the following data:
Initial pressure : P1 = 1.45 atm
Initial temperature: T1 = 52°C + 273 = 325 K
Final pressure: P2 = 4.2 atm
Final temperature: T2 = ?
The relation between pressure and temperature for a gas at constant volume is given by Gay-Lussac's law:
P1/T1 = P2/T2
That means that the pressure is directly proportional to the absolute temperature (in K). So, we calculate T2 from the equation:
T2 = P2 x T1/P1 = 4.2 atm x (325 K/1.45 atm) = 941 K
Therefore, the final temperature would be 941 K (668°C). This is consistent with the law, that states that if the pressure increase, the temperature will be increased.
Which statement best describes the main conflict in "Wiley, His Mother, and the Hairy Man"?
Answer:
a. Wiley has to find a way out of the tree he ran up.
b. Wiley has to trick the Hairy Man into turning himself into animals.
c. Wiley has to ask his mama for help to defeat the Hairy Man.
d. Wiley has to defeat the Hairy Man three times to make him go away.
Answer:
Wiley has to defeat the Hairy man three times to make him go away
Explanation:
A compound is made of 49.31% C, 43.79% 0 and the rest hydrogen. The molar
mass is 146.1g/mol, what are the empirical and molecular formulas?
(Show work)
Explanation:
49.31 + 43.79 = 93.10
finding the percentage of hydrogen in the compound hence 100-93.10 =6.9
therefore 6.9 percent of hydrogen is present in the compound
assuming that the compound is in 100 g so the elements present would be 49.31g of C , 43.79g of O and 6.9g of H
no. of moles of C = given mass÷molar mass
= 49.31 ÷ 12
=4.11 mol
no of moles of O = givem mass ÷molar mass
=43.79÷ 16
=2.73 mol
no. of moles of H =6.9÷1
=6.9 mol
dividing the no. of moles of each element by the least count of the elemnt to get the ratio of the simple whole numbr
therefore
so by dividing we get 1:1:2 of C:O:H
the empirical formula is CH2O
empirical formula mass of CH2O IS
= (12)+(2×1)+(16)
= 12+2+16
=30 G/MOL
n= molar mass of the compound ÷ empirical formula mass of the compound
so, n= 146.1 ÷30
n=5
molecular formula = n×empirical formula
molecular formula= 5×CH2O
molecular formula=C5H10O5 (ribose is the compound)
What type of decay does Am-241 undergo to become Np-237?
a. Alpha decay
c. Positron emission
b. Beta decay
d. Electron capture
The type of decay that Am-241 undergoes to become Np-237 is alpha decay. The correct option is a.
What is alpha decay?Alpha decay is a type of decay or transformation in which a nucleus emits an alpha particle and change into different atomic nuclei. The atomic number reduces by 2 and the mass is reduced by 4.
Am-241 is an isotope of the chemical element americium. It is a radioactive element and its radioactive decay period is 432.2 years. It is used in the testing of machinery.
When the nucleus of Am changes or emits a radioactive particle. It converts into Np-237. The process is called alpha decay. The atomic mass is reduced by four, and the 241 converts into 237, which become neptunium.
Thus, the correct option is a. Alpha decay.
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is lung cancer a physical property or chemical property?
Answer:
its a chemical property
Explanation:
Which of the following is considered parasitism?
a
A hummingbird pollinating a flower.
b
A flea is sucking the blood from a dog.
c
A spider builds its web in a tree.
d
A bug hitches a ride on your backpack during a hike.
Question 8 of 10
The half-life of carbon-14 is 5,730 years. If you start with 12 atoms of carbon-
14, how many atoms of carbon-14 will there be after 5,730 years?
A. 12 atoms
B. 3 atoms
ООО
C. 24 atoms
D. 6 atoms
SUBMIT
Answer:
6
Explanation:
if you start with 12 atoms of carbon and its called the half life of carbon what is half of 12
Answer:
6 Atoms
Explanation:
Ap3x