Answer:
By revive, I assume you're talking about medical assistance.
Explanation:
You can use CPR, where you lay a person back, hold their head up, and push on their chest to the beat "staying alive", in which it keeps their heart beating. If they aren't breathing, you can do mouth to mouth breathing, and continue the process until help arrives or.. the person is no longer with us.
If you have a defibrillator, you can use it on a low amp, or whatever amp you think would be most suitable for the condition of the person.
*yes the person below copy/pasted my thingy. yes its funny.
Answer: i don't even know what you said but i think you said this,
CPR, where you lay a person back, hold their head up, and push on their chest to the beat "staying alive", in which it keeps their heart beating. If they aren't breathing, you can do mouth to mouth breathing, and continue the process until help arrives or.. the person is no longer with us,
If you have a defibrillator, you can use it on a low amp, or whatever amp you think would be most suitable for the condition of the person.
Hope this helps :)
Which chemical species is responsible for the peaks near each wavelengths, 480 \pu{nm}nm and 430 \pu{nm}nm, respectively
The species that are responsible for the peaks near the wavelength are allura red and tartrazine.
What is a wavelength?It should be noted that wavelength simply means the distance between the identical points in the adjacent cycles of a waveform.
In this case, the chemical species is responsible for the peaks near each wavelengths include allura red and tartrazine.
It should be noted that allura red is used as a food dye and supplied as red sodium salt. Also, tartrazine is used as a food coloring agent.
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kAnswer:
Explanation:
Which of the following best describes a metathesis reaction?
Answer:
B
Explanation:
A metathesis reaction is a reaction in which cations and anions change partners.
A general equation for a metathesis is
AX+CY→AY+CX, where A and C are cations, and X and Y are anions.
There are three possible products of a metathesis reaction.
A. an insoluble (solid) precipitate
B. water (from neutralization reaction)
C. an insoluble gas that bubbles out of solution
Metathesis reactions are also called double replacement reactions and double displacement reactions.
Name the enzymes and coenzymes that catalyze the process of catecholamines inactivation. Explain their mechanism of action.
Answer:
Coenzyme Definition
A coenzyme is an organic non-protein compound that binds with an enzyme to catalyze a reaction. Coenzymes are often broadly called cofactors, but they are chemically different. A coenzyme cannot function alone but can be reused several times when paired with an enzyme.
Functions of Coenzymes
An enzyme without a coenzyme is called an apoenzyme. Without coenzymes or cofactors, enzymes cannot catalyze reactions effectively. The enzyme may not function at all. If reactions cannot occur at the normal catalyzed rate, then an organism will have difficulty sustaining life.
When an enzyme gains a coenzyme, it then becomes a holoenzyme or active enzyme. Active enzymes change substrates into the products an organism needs to carry out essential functions, whether chemical or physiological. Coenzymes, like enzymes, can be reused and recycled without changing reaction rates or effectiveness. They attach to a portion of the active site on an enzyme, which enables the catalyzed reaction to occur. When an enzyme is denatured by extreme temperature or pH, the coenzyme can no longer attach to the active site.
Types of Enzymes
Cofactors are molecules that attach to an enzyme during chemical reactions. In general, all compounds that help enzymes are called cofactors. However, cofactors can be broken down into three subgroups based on chemical makeup and function:
Coenzymes
These are reusable non-protein molecules that contain carbon (organic). They bind loosely to an enzyme at the active site to help catalyze reactions. Most are vitamins, vitamin derivatives, or form from nucleotides.
Examine the C13 and H1 spectra of compound D. There is a peak at ~178 ppm in the C13 spectra. Which functional group is this characteristic for
A peak at approximately 178 ppm in the C13 spectra is characteristic of the ester functional group of carbonyl compounds.
What is C13 NMR spectroscopy?C13 NMR spectroscopy is a form of nuclear magnetic resonance spectroscopy using the C13 isotope.
The standard used in 13C-NMR spectroscopy to define the 0 ppm point is tetramethylsilane (TMS).
Each peak obtained in the C13 spectra correspond to a given funnmctional group.
A peak at approximately 178 ppm in the C13 spectra is characteristic of the ester functional group of carbonyl compounds.
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What is the percentage composition of each element in dinitrogen monoxide, N2O? (4 points)
58.32% N; 41.68% O
60.55% N; 39.45% O
63.64% N; 36.36% O
62.66% N; 37.34% O
I think c
Answer:A.) 0
Explanation:
Dinitrogen oxygen ()
Valence electrons of oxygen = 6
Valence electron of nitrogen = 5
The total number of the valence electrons = 2(5) + 6 = 16
The Lewis structure is drawn in such a way that the octet of each atom and duet for the hydrogen in the molecule is complete. So, The Lewis structure is shown in image below.
Formula for formal charge :
Formal charge for oxygen:
Answer:
63.64% N; 36.36% O
Explanation:
percentage composition of each element =
Atomic mass of element ÷ molar mass of compound
Nitrogen Atomic mass = 14u
N2 = 28u
molar mass of N20 = 44
28/44 = .6364 = 63.64%
Oxygen Atomic mass = 16u
0 = 16u
molar mass of N20 = 44
16/44 = .3636 = 36.36%
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Help with chemistry question please
WILL GIVE FREE BRAINLIEST EVERYDAY! DO NOT look up answers!! PLEASE FOLLOW DIRECTIONS ON THIS & FUTURE QUESTIONS OR WRONG!!! Question: What is a lewis Dot model, what is its purpose. And what are some REAL LIFE scenarios it is used in. also give me a description of where the creator is from and their name
(this all the points i have rnn pl.z help a buddy out)
Answer:
What is a Lewis Dot Model?
A simplified representation of the valence shell electrons in a molecule.
What is its purpose?
To show how the electrons are arranged around individual atoms in a molecule.
What are real life examples?
The Lewis Structures helps us understand the bonding of atoms and the shapes of molecules and their chemical properties. And in real life the proteins we eat in food are the carbohydrates which is from chemical bonding, which we can learn through TLS.
Creator of Lewis Structure Facts-
Gilbert Lewis Newton and he is from Weymouth, Massachusetts
Explanation:
Hope this helps you.
Answer:
oh I can give you some points I have but I don't know how to can ya help?
The particle diagram shown above represents the dissolution of CuCl(s) assuming an equilibrium concentration for Cu+ ions of about 4×10^-4M in a saturated solution at 25°C. The equilibrium being represented is shown in the following chemical equation.
CuCl(s)⇄Cu+(aq)+Cl−(aq)
Which of the following changes to the particle diagram will best represent the effect of adding 1.0mL of 4MNaCl to the solution?
A. Some of the Cu+ and Cl− ions combine to form CuCl(s) because the Ksp will be lower than 1.6×10−7.
B. Some of the Cu+ and Cl− ions combine to form CuCl(s) because the molar solubility will be lower than 4×10−4M.
C. More Cu+ and Cl− ions will be in solution because the molar solubility will be higher than 4×10−4M.
D. More Cu+ and Cl− ions will be in solution because the Ksp will be higher than 1.6×10−7.
Due to common ion effect, addition of 1.0mL of 4MNaCl will cause some of the Cu+ and Cl− ions combine to form CuCl(s) because the Ksp will be lower than 1.6×10−7.
What is solubility product?The term solubility product refers to the equilibrium constant that is set up when an ionic substance dissolve in water. Since the solution already contains chloride ions, addition of more chloride ions from NaCl will cause more CuCl(s) to separate from solution.
Hence, when 1.0mL of 4MNaCl is added to the solution, some of the Cu+ and Cl− ions combine to form CuCl(s) because the Ksp will be lower than 1.6×10−7.
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answer a||
Course Activity: Describing the Movement of Energy
Task 1: Pendulum
Task 2: Spr|ng and We|ght
Task 3: Heat Sp|ral
The ball moves to and fro. It rises to extreme positions on both sides and reverses its motion
Oscillations gradually die down
spring & weight:A spring can be elongated by a force applied at one end in the direction of its long axis, the other end is being fixed
The increase in the length is directly proportional to the magnitude of force
Heat SpiralHeating air causes the air molecules to travel farther apart, thereby making the air less dense. Less dense air will always rise above dense air. As the warm, lighter, air rises upwards the paper spiral begins to spin.
pls help me who is good at science!!
Answer: photosynthesis , pollination, decomposition
Explanation:
What is the osmotic pressure of a solution of FeCl3(aq) in which 69.5 g of FeCl3(s) (molar mass = 162.20 g mol-1) are dissolved in a solution with a total volume of 2.35 L at 35.0 °C?
The osmotic pressure of the solution is 25.48atm
Data;
Mass = 69.5gMolar mass = 162.20g/molVolume = 2.35LTemperature = 35.0^oCOsmotic PressureThe osmotic pressure of the solution is calculated as
[tex]\pi = iMRT[/tex]
i = Vant Hoff FactorM = molarityR = gas constantT = TemperatureThe Vant hoff factor of the factor = 4
Let's calculate the molarity of the solution;
[tex]M = \frac{number of moles}{volume}[/tex]
Number of moles = mass / molar mass
[tex]n = \frac{mass}{molar mass} \\[/tex]
substitute the values into the formula and solve for it
[tex]n = \frac{69.5}{162.20} \\n = 0.428 moles[/tex]
The molarity of the solution is calculated as
[tex]M = \frac{number of moles}{volume} \\M = \frac{0.428}{2.35} = 0.182 mol/L[/tex]
The osmotic pressure of the solution is calculated as
[tex]\pi = iMRT\\\pi = 4 * 0.182 * 35\\\pi = 25.48 atm[/tex]
The osmotic pressure of the solution is 25.48atm
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Teeth and long bones are good indicators of age in children; ribs and joints are better for adults.
1. True
2. False
The answer is True not False
Based on what you know about matter explain why the food coloring mixes at different rates
Answer:
Matter has different densities. Different food colorings have different densities. Those with a higher density will sink to the bottom and mix much easier than one with a lower density. The higher density also contains more particles making it easier to mix or give it a fuller color.
If normal rainfall has a pH of 6.2 and acid rain has a pH of 2.8, how much greater is the hydrogen ion concentration of the acid rain compared to normal rainfall?
Taking into account the definition of pH, the hydrogen ion concentration of the acid rain is 1.58×10⁻³ greater compared to normal rainfall.
Definition of pHpH is a measure of acidity or alkalinity that indicates the amount of hydrogen ions present in a solution or substance.
The pH is defined as the negative base 10 logarithm of the activity of hydrogen ions, that is, the concentration of hydrogen ions or H₃O⁺:
pH= - log [H⁺]= - log [H₃O⁺]
Normal rainfallNormal rainfall has a pH of 6.2. Replacing in the definition of pH:
6.2= - log [H⁺]
Solving:
[H⁺]= 10⁻⁶ ²
[H⁺]= 6.31×10⁻⁷
Acid rainAcid rain has a pH of 2.8. Replacing in the definition of pH:
2.8= - log [H⁺]
Solving:
[H⁺]= 10⁻² ⁸
[H⁺]= 1.58×10⁻³
Hydrogen ion concentration difference of acid rain compared to normal rain.To know how much greater is the hydrogen ion concentration of the acid rain compared to normal rainfall, you must do the subtraction between both concentrations:
1.58×10⁻³ - 6.31×10⁻⁷= 1.58×10⁻³
It is practically equal to the concentration of hydrogen ions in acid rain because its concentration is much higher than the concentration in normal rainfall.
In summary, the hydrogen ion concentration of the acid rain is 1.58×10⁻³ greater compared to normal rainfall.
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Which element do plants need a lot of in order to go?
how many atoms are in the glucose chemical formula C6, H12, O6 ?
Answer:
6 carbon atoms, 12 hydrogen atoms and 6 oxygen atoms
If you start with 3.50 g of aluminum, 15.0 mL of 1.4 M potassium hydroxide and 25.0
mL of 9 M sulfuric acid (with excess of water), what is the limiting reactant?
Answer:
limiting reactant is aluminum
Explanation:
You need to make up 500.0 ml of .5750 m glucose (180.15g/mol). What is the mass of the glucose should you measure out
Answer:
Calculate the volume (in mL) of the 1.356 M stock NaOH solution needed to prepare 250.0 mL ... Glucose (molar mass=180.16 g/mol) is a simple, soluble sugar ... g of glucose in enough water to make 500.0 mL of solution. • Step 2: Transfer 18.6 mL of glucose
As per molar concentration, 51.79 g of glucose is required to make 500 ml of 0.5750 M glucose solution.
What is molar concentration?Molar concentration is defined as a measure by which concentration of chemical substances present in a solution are determined. It is defined in particular reference to solute concentration in a solution . Most commonly used unit for molar concentration is moles/liter.
The molar concentration depends on change in volume of the solution which is mainly due to thermal expansion. Molar concentration is calculated by the formula, molar concentration=mass/ molar mass ×1/volume of solution in liters.
In terms of moles, it's formula is given as molar concentration= number of moles /volume of solution in liters.
In the given problem, mass of glucose is calculated from molar concentration as , molar concentration×molar mass×volume in liters
On substitution, mass= 0.5750×180.156×0.5=51.79 g
Hence, 51.79 g of glucose is required to prepare 500 ml of 0.5750 M glucose solution.
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Hello I need help with this question
Deleted answer. ......
pls help with me who is good in science!!!
Here are my answers since I examined the questions.
Question 1.
No! as a matter of fact, the Rock cycle has no Beginning and No End it's an infinite loop.
Question 2.
The Rock cycle can happen in both ways such as, Volcanic rock melts and cool downs happen quite quickly as in others happen slower.
Question 3.
The 4 Major Steps of the rate of change are, Weathering, Transportation, Deposition, And Compaction.
Question 4.
The main factor for this one would be: The mineral composition of the Parent Rock.
Question 5.
The Parent Rock and the Pressure/temperature conditions.
These all my answers for this project, Good Luck.
give the IUPAC name for the organic compound
Answer:
methanide
Explanation:
not sure
In the following closed circuit diagram it is found that the bulb doesn't glow. Explain with reason
Answer:
No power - breaker, switch off or dead battery
Line voltage below minimum operable voltage (brownout)
Dimmer at minimum so 0% light
Switch/Dimmer faulty
A connection faulty between source of power and bulb
Failure in fixture (Lower Voltage transformer, overheat switch, driver)
Bulb not secured correctly - check base tab for being squished down and cleanliness
Fault in bulb
Safety triggered (overheated component shutdown item)
Ciji wants to purchase a six-year-old car. What consumer law would provide clear warranty information on her purchase?
A. Consumer Bill of Rights
B. Uniform Commercial Code
C. Used Car Rule
D. Credit Card Accountability, Responsibility, and Disclosure Act
Answer:
C. Used Car Rule
Explanation:
Just took the test, got it right !!
Hope this helps.
Used Car Rule would provide clear warranty information on her purchase. Hence, option C is correct.
What is warranty information?A warranty is a written promise by a company that, if you find a fault in something they have sold you within a certain time, they will repair it or replace it free of charge.
Used Car Rule would provide clear warranty information on her purchase.
Hence, option C is correct.
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79. Explain why the production of a gas does
not always mean that a chemical reaction has
occurred.
what is sewageband dirty amd water
Answer:
Sewage is a liquid containing wastes from households, industrial and agricultural activities discharged into water and it is dirty water.
A compound contain 31.9% potassium
(K) 23.93% cl and the rest oxygen
what is the chemical formula of the
compound
K=39
cl=35.5
O =16
Answer:
kclo2
Explanation:
the percentage can't be written on the equation
The volume of a metal rod was determined to be 38.6 mL. Its
mass was found to be 400.3 grams when measured with
platform balance. Would measuring the mass on an analytical
balance improve the accuracy of the density determination?
Justify your answer on the basis of significant digits.
On the basis of significant figures, the accuracy of measurement made using an analytical balance is more reliable.
What is an analytical balance?An analytical balance is a special type of weighing balance that has a reputation for obtaining the mass of very small objects even as low as milligrams. It consists of a transparent glass casing and a scale.
On the basis of significant figures, the use of an analytical balance to determine the weight will improve the accuracy of the determination since it determines the mass to more significant figures.
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In general, ionic compounds are hard solids at ambient temperatures but they shatter fairly easily. How do these two properties support the theory of ionic bonding?
Ionic or electrovalent compounds support the theory of ionic bonding because they are compounds composed of charged particles formed when an atom gains or loses electrons.
Electrovalent compounds posses:
High boiling and melting points.Form crystals.What is ionic bonding?This is the transfer of valence electrons from metals to non metals to form ionic compounds. It also refers to a chemical bond formed between two ions with opposite charges.
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Ionic compounds' hardness and easy shattering show strong electrostatic attraction between ions, validating the theory of ionic bonding.
The properties of hardness and easy shattering in ionic compounds provide evidence for the theory of ionic bonding based on the nature of electrostatic forces between ions.
Hardness: Ionic compounds are hard due to the strong electrostatic attraction between positively and negatively charged ions. In a crystal lattice, ions are held in a three-dimensional arrangement by these forces, requiring significant energy to separate them. This aligns with the theory of ionic bonding, which suggests that atoms transfer electrons to achieve full valence shells, forming stable ions.
Shattering: While ionic compounds are hard, they are also brittle and shatter easily. Applying pressure causes ions of like charge to come into close proximity, repelling each other and leading to the formation of new crystal planes. When the repulsive force exceeds the attractive force, the crystal shatters. This brittleness supports the idea of strong electrostatic forces, where the arrangement of ions is disrupted by even slight mechanical stress.
Both hardness and shattering behavior in ionic compounds illustrate the dominance of electrostatic interactions between ions, consistent with the theory of ionic bonding.
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what can u say about the sizes of all the atoms in a piece of carbon
Answer:
all atoms must have 6 protons to be a carbon atom
Explanation:
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1. How many grams of sulfur dioxide could be formed when 299 grams of H2SO4 reacts?
____Cu + ____H2SO4 --> ____CuSO4 + ____SO2 + ____H2O
a 97.6 g
b 195 g
c 391 g
d 48.8 g
Answer:
cu+97.6g+48.8g
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