Answer:
cExplanation:
Each stanza from the poem "i know christ" starts with the same words what are they?
The same words that start each stanza of reactant the poem "i know christ" are "I know Christ". This repetition is a literary technique used to enhance the poem's overall meaning and impact.
The repetition of these words at the beginning of each stanza emphasizes the speaker's firm belief and personal connection with Christ. It also serves to unify the stanzas and create a consistent structure throughout the poem.
In the poem, the poet chooses to start each stanza with the words "I know" to create a sense of consistency and to emphasize their understanding and connection to Christ. This repetition is a literary technique used to enhance the poem's overall meaning and impact.
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Which substance has the lowest [h ] concentration but is still considered an acid? milk blood gastric fluid household lye
The substance which has H⁺ concentration but is still considered an acid is milk.
How concentration of H⁺ determine acidity?Acidity of any substance will be calculated by using the pH scale and pH is define as:
pH = -log[H⁺]
Among the given substances pH of them are in range of:
Milk: pH = 6.5 - 6.7Blood: pH = 7.35 = 7.40Gastric fluid: pH = 1.5 - 3.5Household lye: pH = 13.5pH scale ranges from 0 to 14, where 0 to 6.9 shows the acidity, 7 shows the neutrality and from 7.1 to 14 shows the basicity of the solution. From the given pH values it is clear that lye is highly basic and gastric fluid is highly acidic. And blood has slight basic nature and due to the presence of lactic acid milk has very low concentration of H⁺ ions and considered as acid.
Hence milk is the correct answer.
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why is cooler material more dense than warmer material
Cooler materials are more dense than warmer materials because density increases as temperature decreases.
This is due to the fact that molecules slow down as the temperature drops, causing them to move closer together and increase the density of a material. This is known as the Law of Charles and Gay-Lussac, which states that the pressure of a gas is directly proportional to its temperature. As the temperature decreases, the pressure also decreases, causing the molecules to come closer together and increase the density of the material.This is due to the fact that thermal energy, which causes particles to move farther apart, is reduced when temperature decreases. As the particles become more tightly packed, the material becomes denser.
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A sample of iron having a mass of 93.3 g is heated to 65.58 oC and is placed in 75.0 g of water raising the temperature of the water from 16.95 o C to 22.24 o C. Find the specific heat capacity for this iron sample. (Specific Heat of Water (C) = 4.184 J/go C)
Answer:
0.271J/g°C
Explanation:
mass of iron=93.3g
∆°C=65.58
mass of water=75g
C of water=4.184
∆°C=22.4-16.95=5.29°C
mc∆°C of iron = mc∆°C of water
93.3×C×5.29=75×4.184×5.29
C=75×4.185×5.29/93.3×65.58
C=0.271J/g°C
If you have 144 moles of As , you need moles of NaOH use it all up
ANSWER
The number of moles of NaOH is 432 moles
EXPLANATION
Given information
\(2\text{ As + 6NaOH }\rightarrow\text{ 2Na}_3AS_{O3}+\text{ 3H}_2\)The number of moles of As = 144 moles
Let x represents the number of moles of NaOH
From the above reaction, you will see that 2 moles of As react with 6 moles of NaOH
The next step is to find the number of moles of NaOH using a stoichiometry ratio
\(\begin{gathered} 2\text{ moles of As }\rightarrow\text{ 6 moles of NaOH} \\ 144\text{ moles of As }\rightarrow\text{ x moles of NaOH} \\ \text{ Cross multiply} \\ 2\text{ }\times\text{ x = 6 }\times144 \\ 2x\text{ = 864} \\ \text{ Divide both sides by 2} \\ \frac{2x}{2}\text{ = }\frac{864}{2} \\ x\text{ = 432 moles} \end{gathered}\)Hence, the number of moles of NaOH is 432 moles
Decide whether solutions of the following salts are acidic, neutral, or basic. a. ammonium cyanate b. anilinium cyanat
Ammonium cyanate (NH₄OCN) is a salt formed by the combination of the ammonium ion (NH₄₊) and the cyanate ion (OCN-). Therefore A is correct.
When ammonium cyanate dissolves in water, the ammonium ion can donate a proton (H+) to water molecules, resulting in the formation of hydronium ions (H₃O+).
This leads to an increase in the concentration of hydronium ions and, consequently, a decrease in pH. Therefore, solutions of ammonium cyanate are acidic.
b. Anilinium cyanate (C₆H₅NH₃OCN) is a salt formed by the combination of the anilinium ion (C₆H₅NH₃₊) and the cyanate ion (OCN-). The anilinium ion is derived from aniline, which is a weak base.
In summary, solutions of ammonium cyanate are acidic, while solutions of anilinium cyanate are basic.
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Guided
Learning
ar Inequalities in One Variable - Item 7601
Pre-Quiz
Practice
from a, it will be greater than b.
Post-Quiz
Finish
If the ordered pair (a, b) satisfies the inequality y> x-4, three of these statements are
true. Which statement is NOT true?
a and b may be equal to each other.
We
The statement about the inequality that is NOT true is (A), a and b may be equal to each other.
How to determine true statements?This is because the inequality y> x-4 means that y must be greater than x-4. If a and b are equal, then y = x-4, which means that the inequality is not satisfied.
The other three statements are true because:
If 4 is subtracted from a, it will be greater than b because y> x-4 means that y must be greater than x.
If 4 is subtracted from b, it will be less than a because y> x-4 means that y must be greater than x.
If 4 is subtracted from both a and b, the inequality will still be true because y> x-4 means that y must be greater than x, even if x and b are both decreased by 4.
Therefore, the answer to the question is the statement a and b may be equal to each other.
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Complete question:
Guided Learning ar Inequalities in One Variable - Item 7601
Pre-Quiz
Practice
from a, it will be greater than b.
Post-Quiz
Finish
If the ordered pair (a, b) satisfies the inequality y> x-4, three of these statements are true. Which statement is NOT true?
a and b may be equal to each other.
If you subtract 4 from a, it will be greater than b.
If you subtract 4 from b, it will be less than a.
If you subtract 4 from both a and b, the inequality will still be true.
What two elements should the first two headings in the header of the web page be enclosed in? group of answer choices h2 and h3 elements p and ul elements h1 and p elements h1 and h4 elements
The first two headings in a web page header should be enclosed in h1 and h2 elements to provide a hierarchical structure and improve readability and accessibility.
The first two headings in the header of a web page should typically be enclosed in h1 and h2 elements. The h1 element represents the main heading of the page, typically the title or the primary focus.
It carries the highest level of importance. The h2 element is used for subheadings, providing a hierarchical structure to the content. It is appropriate to use h1 for the main header and h2 for a secondary heading within the header section.
This helps in organizing and visually representing the information on the page, making it more readable and accessible for users and search engines.
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1) A certain liquid has a density of 0.80 g/ml. What is the mass of a 40 ml sample of this liquid? 1)
A) 0.0208 B).0318 C)328 D) 328 E) 50 g
Answer:
The answer is
32 gExplanation:
The mass of a substance when given the density and volume can be found by using the formula
mass = Density × volumeFrom the question
volume = 40 mL
density = 0.80 g/mL
The mass is
mass = 40 × 0.8
We have the final answer as
32 gHope this helps you
The Earth has always been a hospitable haven for life. ture or flase
Answer:
True and false at the same time
Explanation:
It is true that Earth is heaven for life but It's also hell for life because people suffer a lot and so does the Earth. Earth is a hell for life because of all the bullying, criticism, racism, sexism, and homophobic people. Life is a great thing to enjoy but with all the negative things that happened and keep happening in the world, it's a living hell for a life. The only good things are that you can explore and do things you never thought of doing before and you are ale=ways surrounded by people who love you and appreciate you for who you are but it's a 5-50 chance of you getting an opportunity like that.
I'm not a negative person it's just the ways that things are. I hope this answers your question!
Have a nice day! UwU
what mining biodivirsity
Answer:
Explanation:
Mining affects biodiversity at multiple spatial scales (site, landscape, regional and global) through direct (i.e. mineral extraction) and indirect processes (via industries supporting mining operations, and external stakeholders who gain access to biodiversity-rich areas as the result of mining).
The total mass of the reactants is equal to the total mass of products. this is known as the conservation of what?
Explanation:
the law of conservation of mass
Answer:
Explanation:
the law of conservation of mass
suppose you had molecular oxygen (o2) chilled enough so that it was in liquid form. which of the following best describes the phase changes that would occur as you heated the liquid oxygen to high temperature?
It would evaporate into a gas, then the molecules would dissociate into individual oxygen atoms, then the atoms would become increasingly ionized as you continued to raise the temperature.
What ionize?Converting (an atom, molecule, or substance) into an ion or ions, typically by removing one or more electrons is known as ionize.
What is an ion?An ion is an atom or group of atoms that has an electric charge. Ions with a positive charge are called cations. Ions with a negative charge are called anions. Many normal substances exist in the body as ions.
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when mixing two ointments together while following a master formula, you notice small white lumps in the mixture. the term for this would be
When mixing two ointments together while following a master formula, you notice small white lumps in the mixture, it is called emulsification.
What is emulsification?Emulsification is the process of dispersing two or more immiscible liquids together to form a semi-stable mixture.
What is a white lump?Lumps occur when two similar or non-similar substances are mixed together.
When mixing happens, stabilizers can form a gelling surface around powder particles. The gelled surface prevents the liquid from fully wetting the powder and causes the powder to lump.
The lumping reduces:
1) stability of the product
2) lead to sedimentation
3) clogging in the mixture
4) reduces production quality
When mixing two ointments together while following a master formula, you notice small white lumps in the mixture, it is called emulsification.
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Convert 421.9 Kelvin to Celsius and then to Fahrenheit by using (degrees Celsius x 9/5) + 32 = degrees Fahrenheit.
(This is for a cookie recipe for my chemistry class for context.)
Answer:
300.02°F
Explanation:
To convert 421.9.9 Kelvin to Celsius subtract 273 from 421.9 Kelvin
421.9-273=148.9°C
To convert 148.9°C to °F use the formula (°C x 9/5) +32
That is:
(148.9°C x 9/5) + 32
=300.02°C
Which tool would be the best tool to measure the volume of water absorbed by a sponge?
Answer:
The tool is called Graduated cylinders
What is reduced in the reaction below?
2H2 + 02 → 2H20
A. H20
B. 02
C. Reduction does not occur.
D. H2
SUBMIT
Answer:
\({ \underline{ \sf{O _{2} \: is \: reduced}}}\)
Explanation:
Reduction means when a reactant loses oxygen or gains hydrogen.
In the equation:
Hydrogen molecule, it neither gains nor loses hydrogen, but it gains oxygen. so :
\({ \sf{H _{2} \: is \: excluded}}\)
Oxygen molecule loses one oxygen atom, and gains four hydrogen atoms, hence it is reduced.
The radius of a basketball hoop is 9 inches. Which expression can be used to find the
hoop's circumference in inches?
Answer:
2 \(\pi\) r
Explanation:
Given that:
Radius of basketball = 9inches
Unknown:
Hoop's circumference = ?
Solution:
To solve this problem, we use the formula for the circumference of a circle.
The shape of the hoops is circular.
Circumference of a circle = 2 \(\pi\) r
R is the radius of the basketball hoop
What are hydrolases responsible for regulating?
Hydrolases are responsible for regulating various biochemical reactions in living organisms by catalyzing the hydrolysis of various substrates.
These enzymes act by breaking down complex molecules into smaller components by adding a water molecule, thus aiding in processes such as digestion, metabolism, and other cellular activities. Some common examples of hydrolases include proteases, which break down proteins; lipases, which break down lipids; and carbohydrases, which break down carbohydrates. Each type of hydrolase is specialized in targeting specific types of substrates and plays a crucial role in maintaining homeostasis within the organism.
Moreover, hydrolases are essential in regulating the balance between synthesis and degradation of biomolecules, allowing cells to adapt to changes in environmental conditions and respond to cellular signals. By controlling the rate at which molecules are broken down, these enzymes help maintain optimal levels of energy production, nutrient availability, and waste removal within the cell. In summary, hydrolases are responsible for regulating various biochemical processes in living organisms by catalyzing the hydrolysis of substrates, thus playing a vital role in digestion, metabolism, and maintaining cellular homeostasis.
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Which of the following examples is a compound containing an ionic bond?
O A. 0₂
о B. H20
O C. Cao
OD. CHA
Metals and non-metals come together to produce CaO ionic bonds. The only metals and non-metals, respectively, are calcium and oxygen. The remaining choices are covalent bonding (bonds between non-metals).
Ionic bonds, also known as electrovalent bonds, are a type of linkage created in a chemical molecule by the electrostatic attraction of ions with opposing charges. When the valence (outermost) electrons of one atom are permanently transferred to another atom, a bond of this kind is created.The exchange of one or more electrons between atoms results in the formation of ionic bonds between two or more atoms. Positive ions called cations and negative ions called anions are created during electron transfer. Ionic materials can be found as crystalline solids.For more information on ionic bonds kindly visit to
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In ∆ABC, if sin A = and tan A = , then what is cos A?
Complete Question:
In ∆ABC, if sin A = 4/5 and tan A = 4/3, then what is cos A?
Answer:
\(cos A= \frac{3}{5}\)
Explanation:
Given
\(sin A = 4/5\)
\(tan A = 4/3\)
Required
\(cos A\)
In trigonometry;
\(tanA = \frac{sinA}{cosA}\)
Multiply both sides by cosA
\(cos A * tanA = \frac{sinA}{cosA} * cos A\)
\(cos A * tanA = sinA\)
Divide both sides by tanA
\(\frac{cos A * tanA}{tanA} = \frac{sinA}{tanA}\)
\(cos A= \frac{sinA}{tanA}\)
Substitute values for sinA and tanA
\(cos A= \frac{4/5}{4/3}\)
\(cos A= \frac{4}{5} / \frac{4}{3}\)
\(cos A= \frac{4}{5} * \frac{3}{4}\)
\(cos A= \frac{4 * 3}{5 * 4}\)
\(cos A= \frac{3}{5}\)
I need help bad bro i have a 30 cs this is missing
Answer: 11.02 moles of Ag can be formed.
Explanation:
To calculate the moles :
\(\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}\)
\(\text{Moles of} Cu=\frac{350.00g}{63.55g/mol}=5.51moles\)
The balanced chemical equation is:
\(Cu+2AgNO_3\rightarrow Cu(NO_3)_2+2Ag\)
According to stoichiometry :
1 moles of \(Cu\) produces = 2 moles of \(Ag\)
Thus 5.51 moles of \(Cu\) will produce=\(\frac{2}{1}\times 5.51=11.02moles\) of \(Ag\)
Thus 11.02 moles of Ag can be formed.
calculate the number of moles present in 9.50 of co2
Answer:
0.4318 mol
Explanation:
moles = mass/molar mass
moles = 9.50/22
Where would you have to be to see the view shown above? Explain.
Explain how gamma rays are produced.
Answer:
They are produced by the hottest and most energetic objects in the universe, such as neutron stars and pulsars, supernova explosions, and regions around black holes. On Earth, gamma waves are generated by nuclear explosions, lightning, and the less dramatic activity of radioactive decay.
I hope this helped!!
On a dry day, your hair flies apart when you brush it. How would you explain this?
On a dry day, your hair flies apart when you brush it due to static electricity. Static electricity is produced by rubbing two materials together, such as when you brush your hair. The rubbing causes electrons to transfer from one material to another, creating an imbalance of electric charges.
Some materials, such as your hair, tend to hold onto their electrons more than others, causing them to become negatively charged. When you brush your hair, the negatively charged strands repel each other, causing them to fly apart. This effect is most pronounced on dry days when the air is less humid, as dry air allows charges to build up more easily.
Humid air, on the other hand, can help to dissipate static charges, reducing the amount of flyaway hair. Static electricity can also cause your hair to stick to other objects, such as clothing or hats. To prevent this, you can use an anti-static spray or conditioner, which helps to neutralize the charges that cause static electricity.
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What is kinetic-molecular theory in solids?
The kinetic-molecular theory is a model that describes the behavior of matter at a microscopic level.
In solids, this theory suggests that the particles (atoms or molecules) that make up the solid are in constant motion and are held together by strong intermolecular forces. The particles vibrate about their fixed positions and the amplitude of the vibration increases as the temperature increases. This theory also explains properties such as thermal expansion, specific heat, and thermal conductivity of solids.
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A photon with a wavelength of 3.60×10−13 m strikes a deuteron, splitting it into a proton and a neutron.A)Calculate the kinetic energy released in this interaction. (MeV)B)Assuming the two particles share the energy equally, and taking their masses to be 1.00 u, calculate their speeds after the photodisintegration. (m/s)
A. The kinetic energy released in this interaction is: KE = 1.73 MeV
B. The speed of each particle after the photodisintegration is 5.77×10^5 m/s.
A) In order to determine the kinetic energy released during the encounter, we must first compute the photon's starting and final energies and then find the difference between them. The photon's starting energy can be determined using the equation:
E = hc/λ
where h is the Planck constant, c is the speed of light, and is the photon's wavelength. When we substitute the provided values, we get:
E = (6.62610-34 Js) * (2.998108) m/s / (3.6010-13 m)
E = 5.53×10^-13 J
This initial energy is converted into proton and neutron kinetic energy. If the proton and neutron share this energy evenly, each particle has a kinetic energy of:
E/2 = KE = 2.76510-13 J
We can use the conversion factor 1 MeV = 1.60210-13 J to convert this to MeV. As a result, the kinetic energy released in this exchange is as follows:
KE = 2.76510-13 J/(1.60210-13 J/MeV).
KE = 1.73 MeV
B) We can use the conservation of energy and momentum to calculate the speeds of the proton and neutron after photodisintegration. Because the particles share the energy equally, they all have the same kinetic energy. The system's overall momentum is originally 0 and must be conserved following the split.
Let v denote the speed of each particle following the split. The kinetic energy of each particle is then:
KE = (1/2)mv^2
m denotes the mass of each particle. We can substitute m = 1.00 u = 1.6610-27 kg and KE = 2.76510-13 J.
\((1/2)mv^2 = 2.765×10^-13 J v^2 \\\= (2.765×10^-13 J) * 2/m v2 \\\\\= 3.3210-13 m2/s2 v \\\= 5.77105 m/s\)
As a result, the speed of each particle following photodisintegration is 5.77105 m/s.
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The temperature of a 0.65L sample of carbon dioxide gas is 580K. If the pressure remains constant, what is the new volume of the gas if the temperature increases to 1300K?
What environmental factors affect animal characteristics?
factor that could affect
Answers:
There's many factors, such as the temperature, rainfall, food available, and the surrounding terrain, that all can effect an animal's characteristics.