Answers
Chemical reactions involving the carboxyl, amino, and R groups of amino acids are many. Particularly significant are two reactions: cysteine oxidation and peptide bonding.
What function do amino acids ?Amino acids perform a variety of bodily processes, including muscular growth, triggering bodily chemical processes, delivering nutrition, fending off disease, and more. Low levels of amino acids can affect many different aspects of health, including immunity, digestion, depression, fertility, mental alertness, and infant growth.
Where can you find amino acids in the body?Proteins and amino acids are the components of life. Amino acids are the byproducts of the digestion or breakdown of proteins. Amino acids are used by the human body to create proteins that aid in: Dissect food.
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Related Questions
Calculate the ratio of effusion rates of Neon and Helium. Assume Ne is M1 and He is M2.
Answers
Which example is a biotic factor of an aquarium ecosystem?
A) gravel on the bottom of the aquarium
B) algae growing on the glass
C) plastic plants placed in the gravel
D) rock structure
Answers
An example of a biotic factor of an aquarium ecosystem is an algae growing on the glass. Option B is the correct answer.
What is a biotic factor?This refers to a living organism that shapes its environment. The examples of biotic factor that make up fresh water ecosystem are: aquatic plants, fish, amphibians,fungi, bacteria, and protists. and algae.
The biotic factors are gropped into : producers, consumers, and decomposers.
The producers, convert abiotic factors into food. They include plants and algae.The consumers do not make their own food .They consume producers or other consumers to get food energy.The decomposers are the organisms that break down organic matter from dead plants and animals into the inorganic components, for example carbon and nitrogen, which are important for life.Learn more about biotic factor on
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If a candy bar contains 345 Calories, how many calories is this?
Answers
Answer: 345,000 calories
Explanation:
Calories in food such as candy bars refer to the amount of energy that the food has. Calories are also called Kilocalories because they are the equivalent of 1,000 calories.
If the candy bar contained 345 calories therefore, and 1 Calorie is 1,000 calories, the calories in the candy bar are:
= 345 * 1,000
= 345,000 calories
What masses of dimethylamine and dimethylammonium chloride do you need to prepare 5.00 L of pH = 12.00 buffer if the total concentration of the two components is 0.500 M?
Answers
Answer:
will you help us with that one please
The masses of dimethylamine and dimethylammonium chloride we need to prepare 8. 00 l of pH = 12. 00 buffer is 905 gm.
What is a Buffer Solution ?
A buffer solution is defined as an acid or a base aqueous solution consisting of a mixture of a weak acid and its conjugate base, or vice versa whose pH changes very little when a small amount of a strong acid or base is added to it.
For above given information, the dimethylamine (CH₃)₂NH and dimethylammonium chloride (CH₃)₂NH * HCl are mixed to prepare a buffer solution
The concentration of the components is given as 0.5M , Volume = 5L
No. of moles = CV = 0.5 * 5 =2.5 moles
2.5 moles of dimethylamine = mass/ Molecular weight
Molecular weight of dimethylamine = 45 gm
Therefore the mass of dimethylamine required = 45 * 2.5 = 112.5gm
4 moles of dimethylammonium chloride = 362 gm
Therefore the mass of dimethylammonium chloride required = 362*2.5 = 905 gm
Thus, the masses of dimethylamine and dimethylammonium chloride we need to prepare 8. 00 l of pH = 12. 00 buffer is 905 gm.
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The mass of a carbon atom in grams is approximately 12 amu, or 2.0 × 10-23 g.
To make things easy we could ask, how many carbon atoms would reach an easy-to-remember mass, 12 g? (12 g is easy to remember because it's already on the periodic table for carbon!)
Let's do it! Calculate the number of carbon atoms we would need to reach 12 g on a lab balance.
It may be helpful to consider the following equation to solve:
(mass of carbon atom in grams) × N = 12 g of carbon (reading on balance)
Where N is the number of atoms needed to reach 12 g of carbon on the lab's balance. (check within this question for the other information you need)
How many carbon atoms, N, are needed to reach 12 grams on the scale?
Answers
Therefore, we need 6.0 × 1022 atoms of carbon to reach 12 g on the lab balance.
What is carbon ?Carbon is an element found in nature that is essential for life on Earth. It is an abundant, non-metallic, and highly versatile element that is used in a variety of ways in many different fields. Carbon is found in all living organisms and is the basis of all life on Earth. It is also found in rocks, soil, and the atmosphere. Carbon is the fourth most abundant element in the universe and is the basis for organic compounds that form the basis of all living things. In industry, carbon is used to produce steel, glass, plastics, and many other materials. Carbon is also used in the manufacture of fuels and is a component of the chemical processes necessary for life. Carbon is also used in batteries, semiconductors, and solar cells.
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3. Each container holds one litre of water. Write the least amount of salt needed to make each solution saturated. Then draw a picture of the saturated solution in the circle. answer of this.
Answers
To get them to th e point of saturation,
Container A needs 259gm of SaltContain B needs 159gm of saltContainer C needs no additional salt that is 0gms of salt.Why is this so?The simple a rationale is that a liter of water will only get saturated after 359 grams of salt has been added to it.
Thus, while A is not saturated and B is almost saturated, container C is super saturated and most likely will contain visible forms of salt crystals.
Note that container B will exhibit the qualities of an unstable solutions.
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A substance is soluble if it can dissolve into another substance Salt is
soluble in water, but does this mean that water can dissolve an unlimited
amount of salt? No, it does not! When water has dissolved all the salt it
can, the resulting solution is described as saturated Before that point, the
solution is unsaturated. A saturated solution of water and salt contains
359 grams of dissolved salt for each litre of water.
Have you ever tasted sea water from the ocean? It is a solution of about
35 g of salt for every litre of water. Now, have you ever tasted the solution
in a jar of pickles? It certainly contains a lot of salt. In fact, the nearly
saturated salt content is exactly what deters harmful micro-organisms and
preserves the pickles.
Each container holds one litre of water. Write the least amount of salt needed to make each solution saturated. Then draw a picture of the saturated solution in the circle. answer of this.
Contain A = A solution of 100g of salt
Contain B = A solution of 200g of salt
Contain c = SAturated Solution (500g)
-Convert 6.02 x 1020 formula units of MgCl₂ to mol of MgCl₂:
Answers
6.02 x \(10^{20\) formula units of MgCl₂ is equal to 0.1 moles of MgCl₂.
To convert formula units of MgCl₂ to moles of MgCl₂, we need to use Avogadro's number, which relates the number of formula units to the number of moles.
Avogadro's number (NA) is approximately 6.022 x 10^23 formula units per mole.
Given that we have 6.02 x 10^20 formula units of MgCl₂, we can set up a conversion factor to convert to moles:
(6.02 x 10^20 formula units MgCl₂) * (1 mol MgCl₂ / (6.022 x 10^23 formula units MgCl₂))
The formula units of MgCl₂ cancel out, and we are left with moles of MgCl₂:
(6.02 x 10^20) * (1 mol / 6.022 x 10^23) = 0.1 mol
Therefore, 6.02 x 10^20 formula units of MgCl₂ is equal to 0.1 moles of MgCl₂.
It's important to note that this conversion assumes that each formula unit of MgCl₂ represents one mole of MgCl₂. This is based on the stoichiometry of the compound, where there is one mole of MgCl₂ for every one formula unit.
Additionally, this conversion is valid for any substance, not just MgCl₂, as long as you know the value of Avogadro's number and the number of formula units or particles you have.
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what is the correct name for Sn3(PO4)2
Answers
Determine the charges on the following examples:
1. An atom having lost two electrons
2. An atom having lost six electrons
3. An atom having gained one electron
4. An atom having gained three electrons
5. An atom having lose five electrons
6. An atom having gained two electrons
7. An atom having lost one electron
8. An atom having gained four electrons
Answers
The charges on the following examples is An atom having gained three electrons.
What is electrons?Electron, lightest stable subatomic particle known. It carries a negative charge of 1.602176634 × 10−19 coulomb, which is considered the basic unit of electric charge. The rest mass of the electron is 9.1093837015 × 10−31 kg, which is only 1/1,836the mass of a proton. An electron is therefore considered nearly massless in comparison with a proton or a neutron, and the electron mass is not included in calculating the mass number of an atom.The electron is a subatomic particle with a negative one elementary electric charge. Electrons belong to the first generation of the lepton particle family, and are generally thought to be elementary particles because they have no known components or substructure.
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⚠️LINKS WILL BE REPORTED⚠️ // Need answers as fast as possible!
- Electrons always fill orbitals in the same order. Each s orbital holds 2 electrons, each set of p orbitals holds 6 electrons, each set of d orbitals holds 10 electrons, and each set of f orbitals holds 14 electrons. The order in which orbitals are filled, from first to last, is:
1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 4f 5d 6p 7s 5f 6d 7p
Beryllium has 4 electrons. What is the electron configuration of beryllium?
A.
2s^22p^2
B.
1s^22s^2
C.
2s^4
D.
4p^1
Answers
Answer:
\(1s^2\, 2s^2\).
Explanation:
Electron orbitals in an atom (e.g., \(1s\)) are denoted with:
A number, denoting the shell (principal energy level) of this orbital, andA letter, denoting the shape of this orbital (\(s\), \(p\), \(d\), etc.)
There are two aspects to consider when finding the electron configuration of an atom:
The number of electrons that each type of orbitals could hold, andThe order in which the orbitals are filled.The \(s\) orbital in each shell could hold up to \(2 \times 1 = 2\) electrons (one \(s\!\) orbital per shell, with up to two electrons.)
The \(p\) orbitals in each shell could hold up to \(2 \times 3 = 6\) electrons (three \(p\!\) orbitals per shell, with up to two electrons in each orbital.)
The \(d\) orbitals in each main shell could hold up to \(2 \times 5 = 10\) electrons (five \(d\!\) orbitals per shell, with up to two electrons in each orbital.)
Refer to the order in which the orbitals are filled (Aufbau principle.)
The first orbital to be filled would be \(1s\) (the \(s\) orbital of the first shell,) accommodating up to \(2\) electrons.The second orbital to be filled would be \(2s\) (the \(s\) orbital of the second shell,) accommodating up to \(2\) electrons.All four electrons of Beryllium are thus assigned to the \(1s\) and \(2s\) orbitals. In a ground-state Beryllium atom, orbitals \(2p\) and beyond would contain no electrons.
Notation:
Two electrons in the \(1s\) orbital: \(1s^{2}\) (the superscript denotes the number of electrons in this orbital (or group of orbitals).)Two electrons in the \(2s\) orbital: \(2s^2\).Write the non-empty orbitals in the order by which they are filled:
\(1s^2\, 2s^2\).
Which of the following electronic transitions would emit the lowest energy photon?
B- n=2 to n=1
C-n=3 to n=2
D-n=5 to n=2
Answers
Answer:
i will think c-n=3 to NM=2
how many grams of p2o3 can be produced from 95l o2 at STP
Answers
Explanation:
Balanced Equation
P
2
O
3
+
3H
2
O
→
2H
3
PO
3
First use the balanced equation to determine the mole ratio between
H
3
PO
3
and
P
2
O
3
. This ratio will be used to determine the moles
P
2
O
3
required to produce
10.2
moles
H
3
PO
3
.
Mole Ratio Between
P
2
O
3
and
H
3
PO
3
from the balanced equation.
1
mol P
2
O
3
2
mol H
3
PO
3
and
2
mol H
3
PO
3
1
mol P
2
O
3
Multiply the moles
H
3
PO
3
by the molar mass that cancels
H
3
PO
3
and leaves
P
2
O
3
10.2
mol H
3
PO
3
×
1
mol P
2
O
3
2
mol H
3
PO
3
=
5.10 mol P
2
O
3
Now that the moles
P
2
O
3
required to produce
10.2 mol H
3
PO
3
are known, multiply the number of moles by its molar mass,
109.945 g/mol
. https://www.ncbi.nlm.nih.gov/pccompound?term=P2O3 This will give the mass in grams needed for
P
2
O
3
to produce
10.2 mol H
3
PO
3
.
5.10
mol P
2
O
3
×
109.945
g P
2
O
3
1
mol P
2
O
3
=
561 g P
2
O
3
rounded to three significant figures
Airflow through a long 0.2m square air conditioning duct maintained the outer duct surface temperature at 10degree.if the horizontal duct is uninsulated and exposed to air at 35degree in the crawl space beneath at home.
What is the heat gain per unit length of the duct.
Answers
Answer:
125°C/m
Explanation:
The difference in temperature will be:
35 - 10 = 25
The outer duct surface is heated 25°C by the air from 10°C to 35°C;
This heat gain is simply divided by 0.2m to get heat gain per unit length:
25/0.2 = 125
125°C/m
If you're American, this will be °F I believe, so the answer will be:
125°F/m
Can anybody complete this for me?
Answers
Answer:
I wish i could
Explanation:
Q1. Consider the gravitational interactions among Earth, the Sun, and the Moon. Does this constitute a system? If so, what are its boundaries? Is it open or closed? What forms of energy are involved?
Answers
When two objects descend towards one another, the potential energy related to the gravitational field is released (transformed into kinetic energy).
The potential energy that a huge item has in relation to a different massive object due to gravity is known as gravitational energy and gravitational potential energy. When two objects descend towards one another, the potential energy related to the gravitational field is released (transformed into kinetic energy). Bringing two things farther apart increases the gravitational potential energy.
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What does the latent heart of vaporization measure
Answers
Latent heat of vaporization measures the amount of heat that is required to change one unit of mass of substance from liquid state to a gaseous state at constant temperature and pressure.
What does latent heart of vaporization measure?Latent heat of vaporization is a physical property of substance, and it measures the amount of heat required to change one unit of mass of substance from liquid to gaseous state at constant temperature and pressure.
Latent heat of vaporization is the amount of energy required to overcome the intermolecular forces holding liquid molecules together and convert the substance from liquid to a gas phase.
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An clement X has 2 electrons in K shell, 8 electrons in L shell and 5 electrons in i Size of X ion is greater than that of X atom though both contain the same protons. Give reason. ii) Write down the formula of one of the compounds of X where X is in -3 oxidation.
Answers
Answer:
i) The size of X ion is greater than that of X atom even though both contain the same number of protons because the ion has fewer electrons compared to the atom. When an atom forms an anion (negative ion), it gains electrons, which causes increased electron-electron repulsion. This repulsion causes the electron cloud to expand, and as a result, the ion becomes larger than the neutral atom.
In the case of element X, when it forms an ion with a -3 charge, it will gain 3 more electrons, increasing the total number of electrons to 18. This will cause the size of the X ion to be larger than the neutral X atom.
ii) To determine the compound of X in the -3 oxidation state, we first need to determine the element's identity. We know that X has 15 electrons in total (2 in the K shell, 8 in the L shell, and 5 in the M shell). Therefore, X has an atomic number of 15, which corresponds to phosphorus (P).
Since phosphorus is in the -3 oxidation state, it gains 3 electrons and becomes P^3-. To form a compound, we need a cation that can balance the negative charge. A common example is aluminum (Al), which has a +3 charge (Al^3+). When phosphorus and aluminum combine, they form the compound aluminum phosphide with the formula AlP.
What is observed in aqueous mixture of zinc chloride and silver nitrate
Answers
Which sample contains the greatest number of atoms?
(a) 10.0 g He (b) 25.0 g Ne (c) 115 g Xe
Answers
If 4.53g Ar are added to 1.12 atm He in a 2.00 L cylinder at 27.0 Celsius degree
What is the total of gaseous mixture?
Answers
The total gaseous mixture is 4.48 g.
The total gaseous mixture can be calculated using the ideal gas law: PV = nRT.
First, we need to convert the temperature to Kelvin: 27.0°C + 273.15 = 300.15 K.
Next, we can use the ideal gas law to calculate the number of moles of each gas:
For He: n = (1.12 atm) (2.00 L) / (0.08206 L·atm/mol·K) (300.15 K) = 0.0906 mol
For Ar: n = (4.53 g) / (39.95 g/mol) = 0.113 mol
The total number of moles of gas in the mixture is then:
n(total) = n(He) + n(Ar) = 0.0906 mol + 0.113 mol = 0.204 mol
Finally, we can calculate the total mass of the mixture:
m(total) = n(total) × M(avg)
where M(avg) is the average molar mass of the mixture, which can be calculated as:
M(avg) = (M(He) + M(Ar)) / 2 = (4.003 g/mol + 39.95 g/mol) / 2 = 21.98 g/mol
Thus,
m(total) = 0.204 mol × 21.98 g/mol = 4.48 g
Therefore, The total weight of the gaseous mixture is 4.48 g.
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Which of the following mainly drives surface runoff?
A. magnetism
B. gravity
C. electricity
D. thermal energy
Answers
Which of the following will increase the boiling point of water?
Adding more water
Adding sugar
Removing some of the water
None of the above
Answers
Answer:
Explanation:
Adding sugar
Which of the following is true about a compound where there is a difference in
electronegativity of the two elements if the formula of the compound is greater than
1.7?
The compound is a binary covalent compound.
The compound is a covalent compound.
The compound is an ionic compound.
The compound is a polyatomic compound.
Answers
Answer:
D BLESSS Y
Explanation:
Part A Identity the reactants and products in this chemical equation Drag the appropriate labels to their respective targets. Reset Help reactant 4 NH3(g) + 5 O2(g) 4 NO(g) + 6 H2O(8) product
Answers
In the reaction: 4 NH₃ + 5 O₂ → 4 NO + 6 H₂O, the reactants are NH₃ and O₂ and the products are NO and H₂O.
The balanced chemical reaction is given as,
4 NH₃ + 5 O₂ → 4 NO + 6 H₂O
The substance present in the left of the arrow in a chemical equation are called reactants. Basically, a reactant is a substance that is present at the start of a chemical reaction. The substance(s) present in the right of the arrow are called products. Basically, a product is defined as a substance that is present at the end of a chemical reaction.
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What is one advantage of asexual reproduction?
O A. It is advantageous in a changing environment.
B. It is the slowest way to reproduce.
O C. It results in genetically different offspring.
D. It requires only one parent.
Answers
Answer: D.
Explanation:
Asexual reproduction requires only one parent, making it more efficient and take a shorter amount of time than sexual reproduction.
An experiment is performed on an unknown material and produces the given heat curve. The temperature of the material is shown as a function of heat added.
Answers
The specific heat of the solid is 4.2 J/g/°C and the specific heat of the liquid is 36.3 J/g/°C.
How to calculate the valueIn this case, we know that the mass of the solid is 9.80 g, the change in temperature is 235 °C, and the heat added is 10,000 J. We can solve for the specific heat of the solid as follows:
c = Q / m ΔT
= 10,000 J / 9.80 g / 235 °C
= 4.2 J/g/°C
The latent heat of fusion for the unknown material is 334 J/g. We can now calculate the heat required to melt the solid as follows:
Q = mLf
= 9.80 g * 334 J/g
= 32,832 J
The total heat added to the liquid is 10,000 J + 32,832 J = 42,832 J. The change in temperature of the liquid is 235 °C - 20 °C = 115 °C. We can now calculate the specific heat of the liquid as follows:
c = Q / m ΔT
= 42,832 J / 9.80 g / 115 °C
= 36.3 J/g/°C
Therefore, the specific heat of the solid is 4.2 J/g/°C and the specific heat of the liquid is 36.3 J/g/°C.
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An experiment is performed on an unknown material and produces the given heat curve. The temperature of the material is shown as a function of heat added. Other experiments determine that the material has a temperature of fusion of fusion=235 °C and a temperature of vaporization of vapor=471 °C.
If the sample of material has a mass of =9.80 g, calculate the specific heat when this material is a solid, s, and when it is liquid, l.
If the balanced chemical reaction for the formation of Li2O is 4 Li(s) + O2(g) → 2 Li2O(s), how many molecules of Li2O(s) would you produce if you used up 6 atoms of Li(s)?
Answers
The molecules of Li₂O that would produce if you used up 6 atoms of Li(s) is 3.
What is Lithiumdioxide?It is an unstable inorganic and radical compound, used in the manufacture of glass and ceramic.
The balanced equation
\(\rm 6 Li(s) + O_2(g) \rightarrow 3 Li_2O(s)\)
If the atoms of lithium moves up to 6 the lithium oxide molecules will be 3, as you can see in the equation.
Thus, the molecules of Li will be 3.
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In the reaction of hydrogen gas and oxygen gas to form water, the glowing splint..
provides the kinetic energy for the reaction
is one of the products of the reaction
provides the activation energy for the reaction
is one of the reactants of the reaction
Answers
The glowing splint in the reaction of hydrogen gas and oxygen gas to form water provides the activation energy for the reaction.
Reaction of hydrogen gas and oxygenA chemical reaction involves the combination of two or more substances to yield a new substance which is different from the starting materials. It may also involve the break up a substance.
Since energy is required for a chemical reaction to take place, the glowing splint in the reaction of hydrogen gas and oxygen gas to form water provides the activation energy for the reaction.
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Draw a formula for Thr-Gly-Ala (T-G-A) in its predominant ionic form at pH 7.3. You may assume for the purposes of this question that the pKa values of the acidic groups of amino acid residues in the peptide are the same as in the amino acid itself.
Answers
Answer:
gggggggggg
Explanation:
gggggggg
The tripeptide formed from threonine, glycine and alanine is neutral at the pH of 7.3. The carboxylic end is negative charged by donating its proton to form the NH₃⁺ group.
What is peptide?Peptides are protein units formed from two or more amino acids bonded through peptide bonds. There are essential and non-essential amino acids. Essential amino acids have to be uptake from food and non-essential amino acids are synthesized inside the body.
Threonine is an essential amino acid with a CH₃CHOH side group. Glycine has the simplest side group hydrogen and alanine has CH₃ side chain. Both glycine and alanine are non-essential amino acids.
Each amino acids are represented with a three letter code or one letter symbol. Thus threonine is T, G for glycine and A for alanine. At a pH of 7.3 the peptide formed from these amino-acids contains a negatively charged carboxylic end.
A positively charged amino end made by protonation from the acid group make the overall charge zero. The structure of the peptide is given in the uploaded image.
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WILL GIVE BRAINLIEST!
The compound the Mg and Br form is ___ because ____.
Answers
Answer: The compound Mg and Br form is MgBr2 (ionic bounding) because one of the element is metal while the other is non-metal.
Hope this helps you.