'Wetness' is actually a description of water's stickiness. This stickiness
comes from two properties:
and
A. high specific heat capacity and density
OB. None of these
C. ability to be a universal solvent and high latent heat of fusion
D. adhesion and cohesion
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The word "symptom" refers to a specific manifestation or indication of a condition, disease, or disorder that is experienced or observed by an individual.

Symptoms are subjective or objective changes in the body's normal functioning that may be recognized as abnormal, uncomfortable, or problematic. Symptoms can manifest in various ways depending on the nature of the underlying condition. They can be physical, such as pain, rash, cough, fever, or fatigue, indicating an illness or injury affecting the body. Symptoms can also be psychological, such as anxiety, depression, or confusion, reflecting disturbances in mental health.

Symptoms serve as important clues for medical professionals to identify and diagnose diseases or disorders. They provide valuable information about the nature, severity, and progression of an illness, helping healthcare providers formulate appropriate treatment plans. Additionally, symptoms may also be important for individuals to self-assess their own health status and seek appropriate medical attention.

It is essential to note that symptoms alone may not provide a definitive diagnosis, as they can overlap across different conditions. Further evaluation, including medical tests and examinations, is often necessary to confirm a diagnosis and determine the appropriate course of action.

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Answer:

See explanation

Explanation:

A Lewis structure is a representation of atoms of elements using dots. These dots show the number of outermost electrons in the atom. These outermost electrons are involved during ionic bonding.

We can see from the image attached that in ionic bonding, electrons are transferred from the metal to the non metal to form the ionic compound. Arrows have been used to show the transfer of electrons from metals to non metals.

Answer:

Condensation

Explanation:

Zoe is quite keen to have noticed what we call condensation. Air contains many components, one of those being water vapor. Like how sugar is soluble in water, water can be said to be "soluble" in air. Water will evaporate into the air to a certain extent. The higher the temperature of the air, the more water the air can hold. If the air has more water that it can hold (potentially because of a temperature decrease), the extra water will come out of the air. Zoe's water bottle was cold, and because the air around Zoe's bottle had cooled down, the air can not hold as much water as it could when it was warm, so the air deposited the extra water in the form of liquid water onto the bottle, giving the illusion that her bottle was sweating.

When Tom burns \(1.0 g\) of magnesium, he makes \(1.4 g\) of ash he will get \(O2\) is the limiting reagent and \(Mg\) is in excess by \(0.25 g\).

Limiting reagent is defined as the reagent which has been totally consumed in the process of reaction. The reagent which has been left over after the process of the reaction has been known as excess reagent.

Balanced reaction is defined as the process of reaction which has the number of the atoms on the both sides. As the side of the reactant and on the product both the side are common and it has been known as balanced reaction.

Therefore, When Tom burns \(1.0 g\) of magnesium, he makes \(1.4 g\) of ash he will get \(O2\) is the limiting reagent and \(Mg\) is in excess by \(0.25 g\).

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Nose jajajajajaj si mr ayudas te ayudo

Answer: B) Ten moles of sodium hydroxide and five moles of hydrogen gas will be produced

Explanation: Got it right on USATestPrep

The charge on iron (Fe) in iron sulfate (FeSO₄) is equal to +2. Therefore, option (D) is correct.

The ionic charge can be described as the oxidation number of the chemical species. The cation carries a positive ionic charge while Anion carries a negative ionic charge. The number of electrons gained or lost by an atom decides the charge carried by ions.

In the modern periodic table, the elements placed on the left side are electropositive and act as metals because they can donate one or more electrons. The elements placed on the right side are electronegative as they can accept one or more electrons and get a negative charge on their ions.

Considering that the charge on the iron is x, We know that charge on the sulfate ion is -2.

x - 2 = 0

x = +2

Therefore, the charge on iron (Fe) in iron sulfate (FeSO₄) is +2.

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Answer:The concentration of the reactants. The more concentrated the faster the rate.

Temperature.

Physical state of reactants.

The presence (and concentration/physical form) of a catalyst (or inhibitor)

Light.

Answer:

VIDEO ANSWER: This question, we're starting with 2370 square inches, and we want to convert this to square centimeters.

Explanation:

.

A 200 g sample including calcium (Ca), reacts with the excess of hydrochloric acid.  If 4 g of hydrogen gas (H2) is produced, 36.3% is mass percent of calcium of sample.

The term mass percent is sometimes referred to as weight percent or w/w%. The total mass of every one of the atoms in a mole that makes up the compound is the molar mass. The total of all the individual percentages ought to equal 100 percent.

Check the last important number for rounding errors to ensure that the percentage add up. The relative amounts of the components in a compound of chemicals are described by their mass percent composition. Mass composition in percent is also referred to as mass percent. The symbol for it is w/w%.

Ca + HCl → CaCl\(_2\)+ H\(_2\)

moles of calcium = 200/ 40= 5 moles

moles of CaCl\(_2\) = 5moles

mass of CaCl\(_2\) = 5× 110.98= 550g

mass % of Ca = (200/550g )×  100=36.3%

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Answer:

28.55 mL or 0.02855 L

Explanation:

Applying,

Density(D) = mass(m)/Volume(V)

D = m/V............... Equation 1

Where D = Density of the Bromine, m = mass of the bromine, V = volume of the bromine

make V the subeject of the equation

V = m/D............. Equation 2

From the question,

Given: m = 88.5 g, D = 3.10 g/mL

Substitute these values into equation 2

V = 88.5/3.10

V = 28.55 mL

Hence the volume occuppied by the Bromine gas is  28.55 mL or 0.02855 L

I know number 1 is 58.04 g/mol

The balanced equation is: 4 \(H_2S\)+ 3 \(O_2\)→ 4 \(SO_2\)+ 8 \(H_2O\)

The given chemical equation is unbalanced. To balance it, we need to adjust the coefficients in front of each chemical species until the number of atoms on both sides of the equation is equal.

The unbalanced equation is:

2 \(H_2S\)+ 3 \(O_2\)→ \(SO_2\)

Let's start by balancing the sulfur (S) atoms. We have two sulfur atoms on the left side and one sulfur atom on the right side. To balance the sulfur, we can place a coefficient of 2 in front of the \(SO_2\):

2 \(H_2S\)+ 3 \(O_2\)→ 2 \(SO_2\)

Now, let's balance the hydrogen (H) atoms. We have four hydrogen atoms on the left side (2 from each \(H_2S\)) and none on the right side. To balance the hydrogen, we can place a coefficient of 4 in front of the water (H2O) on the right side:

2 \(H_2S\)+ 3 \(O_2\)→ 2 \(SO_2\)+ 4 \(H_2O\)

Finally, let's balance the oxygen (O) atoms. We have six oxygen atoms on the right side (3 from \(O_2\) and 3 from 2 \(SO_2\)) and three on the left side (2 from \(H_2S\)). To balance the oxygen, we can place a coefficient of 3/2 in front of the O2:

2 \(H_2S\)+ (3/2) \(O_2\)→ 2 \(SO_2\)+ 4 \(H_2O\)

To remove the fractional coefficient, we can multiply all coefficients by 2:

4 \(H_2S\) + 3 \(O_2\)→ 4 \(SO_2\)+ 8 \(H_2O\)

Now the equation is balanced, with an equal number of atoms on both sides. The balanced equation is:

4 \(H_2S\)+ 3 \(O_2\)→ 4 \(SO_2\)+ 8 \(H_2O\)

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Explanation:

The question gives us the following balanced equation:

H2SO4 + 2NaOH → Na2SO4 + 2H2O

The equation tells us that 1 mole of H2SO4 react with 2 mole of NaOH producing 1 mole of Na2SO4 and 2 moles of H2O.

It is important to know the ratio between sodium sulfate and water: 1:2.

Also, the question tells us the quantity in grams of Na2SO4. We need to transform it to moles, using the following formula:

n = m/MM

MM of Na2SO4 = 142.04 g/mol

so:

n = 2/142.04

n = 0.0014 moles of Na2SO4

The ratio between Na2SO4 and H2O is:

1 mole of Na2SO4 ---- 2 moles of H2O

0.0014 moles of Na2SO4 ---- y

y = 0.0028 moles of H2O

Answer: It is produced 0.0028 moles of H2O.

Answer:

The solid phase has the lowest entropy.

Explanation:

Entropy (S) is the measure of how  spread out or dispersed the energy of a system is among the different possible ways  that system can contain energy. The greater the dispersal, the greater is the entropy.

In a solid, the atoms or molecules  are confined to fixed positions, thus, the dispersal is minimal and the entropy is at its lowest.

Answer:

Negatively charged

Explanation:

Answer:

Negatively charged

Explanation:

Answer:

The molecular formula of this compound is (2) C2H4O2.

Explanation:

Some of the essential features of computers:

1. Processing Power

2. Storage Capacity

3. Memory

4. Input and Output

5. Connectivity

6. Software

7. Multitasking

8. Scalability

9. Reliability and Durability

10. User Interface

Computers are complex machines that have become an integral part of our daily lives. They possess several key features that enable them to perform a wide range of tasks efficiently. Here are some of the essential features of computers:

1. Processing Power: Computers are capable of executing complex calculations and tasks at incredible speed. They contain powerful processors that can perform billions of operations per second, enabling them to handle various applications and processes.

2. Storage Capacity: Computers have the ability to store and retrieve vast amounts of data. They come equipped with different types of storage devices such as hard drives, solid-state drives (SSDs), and cloud storage, providing ample space for storing files, programs, and operating systems.

3. Memory: Computers have two primary types of memory: RAM (Random Access Memory) and ROM (Read-Only Memory). RAM provides temporary storage for data and instructions that the computer is actively using, while ROM contains firmware and permanent instructions that are essential for booting up the computer.

4. Input and Output: Computers allow users to interact with them through various input and output devices. Input devices include keyboards, mice, touchscreens, and microphones, while output devices include monitors, printers, speakers, and headphones. These devices enable users to input commands and receive feedback from the computer.

5. Connectivity: Computers can connect to networks and other devices, enabling communication and data transfer. They have built-in network adapters and support for various connectivity options such as Ethernet, Wi-Fi, Bluetooth, and USB, allowing users to access the internet, share files, and connect to peripherals.

6. Software: Computers run on software, including operating systems, applications, and utilities. The software provides the instructions and programs that allow users to perform tasks, manipulate data, and manage hardware resources.

7. Multitasking: Computers are designed to handle multiple tasks simultaneously. They can execute multiple programs concurrently, switch between tasks rapidly, and allocate system resources efficiently, providing users with the ability to multitask and enhance productivity.

8. Scalability: Computers offer scalability, allowing users to upgrade hardware components and expand storage capacity as needed. This feature ensures that computers can adapt to evolving technological demands and accommodate future growth.

9. Reliability and Durability: Computers are designed to be reliable and durable. They undergo rigorous testing and are built with high-quality components to ensure stable performance and withstand daily use.

10. User Interface: Computers provide graphical user interfaces (GUIs) that enable users to interact with the system easily. GUIs utilize visual elements such as icons, windows, and menus, making it intuitive for users to navigate and access various functions.

These features collectively make computers versatile, powerful, and indispensable tools in our modern world, enabling us to accomplish a wide range of tasks efficiently and effectively.

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Answer:

The correct answer is option B, that is, CO + H2O → H2 + CO2

The redox reactions are regarded as the chemical reactions in which one reactant goes through the process of reduction and one reactant goes through the process of oxidation. The reduction reactions are the reactions in which gain of electrons occurs, while oxidation reactions are the reactions in which loss of electrons occurs.  

From the mentioned options, only option B, that is, CO + H2O → H2 + CO2 is a kind of redox reaction. In this, the carbon is getting oxidized from +2 to +4 oxidation state, and hydrogen is getting reduced from +1 to 0 oxidation state. Hence, this reaction can be regarded as a redox reaction.

Explanation:

Answer:

By increasing the concentration of One of the reactants.

The term (D) extended structure describes the repeated arrangement of the same molecule.

The extended structure is a type of structure that may be described as one in which the subunits are organized in a pattern that is repeated and occur in a ratio that is constant. Diamond and sodium chloride are two examples of extended structures. Extended structures have well-separated hydrophilic and hydrophobic layers made of propagating chains along the calixarene cavity axis. Therefore, the word "extended structure" is the one that is used to describe the repeating arrangement of the same molecules. So, choice D is the right one.

The correct question is as:

Which term describes the repeated arrangement of the molecule?

A. Bonds

B. Atoms

C. Molecular Model

D. Extended Structure

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A methane molecule (CH4) is considered symmetrical because it possesses a symmetric structure and exhibits symmetry operations.

Symmetry refers to a balanced arrangement of elements that can be divided into equal parts by a plane, axis, or center. In the case of methane, it exhibits several symmetrical characteristics.

Firstly, methane has a tetrahedral molecular geometry, with the carbon atom at the center and four hydrogen atoms positioned around it. This geometry ensures that the molecule is symmetrical in terms of its spatial arrangement.

Each hydrogen atom is located at one of the vertices of the tetrahedron, forming equal angles and distances with respect to the central carbon atom. This symmetry is maintained regardless of the orientation of the molecule.

Additionally, methane possesses rotational symmetry. It can be rotated around any of the carbon-hydrogen bonds, and the molecule will retain its overall appearance.

The symmetry of methane arises from its molecular structure and the equal distribution of electron density around the central carbon atom. The four hydrogen atoms are bonded to the carbon through sigma bonds, which have a cylindrical symmetry. This balanced arrangement of the atoms contributes to the overall symmetry of the molecule.

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Because HCl is a stronger acid than acetic acid, the pH of 0.01M acetic acid has greater value than the pH of 0.01M HCl. 2.88 is the  pH of a 0.01 M acetic acid.

Any hydrogen that comprises a material capable of giving a proton (a hydrogen ion) to another chemical is defined as acid. A base is indeed a molecule or ion that can receive a hydronium ion from just an acid.

1)Because HCl is a stronger acid than acetic acid, the pH of 0.01M acetic acid has greater value than the pH of 0.01M HCl. The pH value of stronger acid is lower.

2)CH\(_3\)COOH + H\(_2\)O  ⇄ CH\(_3\)COO⁻+  H\(_3\)O⁺

 0.01             0               0

 -x              +x                +x

 0.01-x           +x        +x

Ka=[ CH\(_3\)COO⁻][H\(_3\)O⁺]/[CH\(_3\)COOH]

1.8×10⁻⁵ = [x][x ]/[  0.01-x ]

x=1.34×10⁻³

pH = -log[H⁺]

     =  -log[1.34×10⁻³]

     =2.88

Therefore, because HCl is a stronger acid than acetic acid, the pH of 0.01M acetic acid has greater value than the pH of 0.01M HCl. 2.88 is the   pH of a 0.01 M acetic acid.

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Answer:

lungs

Explanation:

Option (a) is correct. Magnesium phosphate is an ionic compound having the formula \(Mg_{3} (PO_{4} )_{2}\) .

The Ionic compounds are the type of chemical compound where the oppositely charged ions of a metal and a nonmetal are attracted to each other to form an ionic bond. The compound formed from the bonded ions have different properties from the elements that make up the compound. Ionic compounds containing basic ions hydroxide (OH−) or oxide (O2−). These are classified as bases. Ionic compounds can be formed by acid–base reactions. Ionic compounds can be produced from their constituent ions by evaporation of the solvent, precipitation, freezing and a solid-state reaction.  It can form by the electron transfer reaction of reactive metals with reactive non-metals.

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