Choose the combination of factors that creates fog. Record the description of the factors in the Student Guide,

Relative Humidity


Air Temperature


Air Pressure


Check

Pause

Answer:

I think the answer is " Night vision glasses detect Infrared" energy emitted from cooling objects.

Explanation:

The oxidation number of Ag in Ag2O is +1.

In Ag2O, there are two silver atoms (Ag) and one oxygen atom (O). Oxygen is known to have an oxidation number of -2 in most compounds. Since the compound is neutral, the sum of the oxidation numbers of all the atoms must equal zero.

Therefore, the oxidation numbers of the two silver atoms must add up to +2 to balance out the -2 oxidation number of the oxygen atom. Since there are two silver atoms, each silver atom must have an oxidation number of +1 to yield a total oxidation number of +2 for the compound.

In Ag2O, the silver atoms lose one electron each to form Ag+ ions. This results in an oxidation number of +1 for each silver atom. The oxygen atom gains two electrons from the silver atoms to achieve a stable octet configuration, resulting in an oxidation number of -2 for the oxygen atom. The compound Ag2O is formed through the transfer of electrons, with each silver atom exhibiting an oxidation number of +1.

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Answer:

Kinetic energy is the energy by ethicalness of article's movement while Thermal energy is the inner energy of an item because of the motor energy of its particles.

Explanation:

Answer:

Thermal energy:

Thermal energy is a type of energy that is formed by the vibration of atoms and molecules inside matter. The faster they vibrate, the more energy they contain. They also gain more heat.

Kinetic energy:

Kinetic energy is the mass/energy that is in moving objects. When an object speeds up, it gains more kinetic energy. All moving objects contain kinetic energy. The moving object gains energy due to its motion.

Note:

Sorry if this is a bad explanation but hopefully this helped!

A: begin to cool and daylight hours decrease.

Plants go through seasonal changes from summer to fall because of the changes in temperature and the length of daylight hours. As summer ends and fall begins, temperatures begin to cool down and the days become shorter. This change in temperature and daylight hours triggers physiological changes in plants, such as the slowing down of growth and the production of pigments like anthocyanins, which give leaves their characteristic red and orange colors in the fall. These changes allow the plant to prepare for the colder winter months and conserve energy for the upcoming spring growth season.

Answer:

a. begin to cool and daylight hours decrease

hope this helps ;)

Answer:

1552.83J Released

Explanation:

1. mass/m=225

Initial temp:86C, final:32.5C

Changed Temp: 32.5-86= -53.5C

s=0.129 J/gC

Formula: q= m times s times changed Temp.

q=(225)(0.129)(-53.5)

q= -1552.83 J

q=1552.83 J Released

Answer:

this u can get the ans in shaala.com

The balanced chemical equation for the reaction between strontium and oxygen can be written as follows: 2 Sr (s) + \(O_2\)(g) → 2 SrO (s).

In this equation, solid strontium (Sr) reacts with gaseous oxygen (\(O_2\)) to produce solid strontium oxide (SrO).

To determine the mass of product expected to form in this reaction, we need to consider the molar ratio between strontium and strontium oxide. From the balanced equation, we can see that 2 moles of strontium react to produce 2 moles of strontium oxide.

The molar mass of strontium (Sr) is 87.62 g/mol, and the molar mass of strontium oxide (SrO) is 119.62 g/mol. Since the molar ratio is 1:1 between strontium and strontium oxide, the mass of strontium oxide formed will be equal to the mass of strontium used.

In this case, the student added 4.93 g of strontium to the crucible. Therefore, the expected mass of strontium oxide formed will also be 4.93 g.

It's important to note that this calculation assumes that the reaction proceeds to completion, meaning that all of the strontium reacts with oxygen. In actual laboratory conditions, the yield of the reaction may be less than 100% due to factors such as incomplete reaction, side reactions, or product loss.

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Answer:

Explanation:

Here, we want to convert into the given units

We take the conversion one after the other

We start by converting garb to plunk

since 1 garb = 10 plunk,

1.21 garbs will be 1.21 * 10 = 12.1 plunk

2 khaki = 12 canva, then 8 khaki will be 4 * 12 = 48 kanva

15 plunk = 48 kanva

12.1 plunk = x canva

Answer:

true

Explanation:

The correct answer is "decendent." Embalming authorization may be given by the bailee, next of kin, or spouse, but not by the decedent.

The term "decedent" refers to the person who has died; they are unable to give consent for embalming or any other post-mortem procedures. According to legal and cultural customs, the choice to embalm is often taken by the designated representative, such as the bailee (person in charge of the body), next of kin, or spouse.

Hence, embalming authorization may be given by the bailee, next of kin, or spouse, but not by the decedent.

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Considering the definition of pH, the pH of a 8.5×10⁻⁴ M HClO₄ solution is 3.07.

pH is the Hydrogen Potential. It is a measure of acidity or alkalinity that indicates the amount of hydrogen ions present in a solution or substance.

Mathematically, pH is calculated as the negative base 10 logarithm of the activity of hydrogen ions:

pH= - log [H⁺]

The numerical scale that measures the pH of substances includes the numbers from 0 to 14. The pH value 7 corresponds to neutral substances. Acidic substances are those with a pH lower than 7, while basic substances have a pH higher than 7.

An acid that completely dissociates in solution at constant temperature and pressure is called a strong acid. Under these conditions, the concentration of a strong acid is equal to the concentration of hydrogen ions.

HClO₄ is a string acid. So [HClO₄]=[H⁺]= 8.5×10⁻⁴ M. Now, you can replace this value in the definition of pH:

pH= -log (8.5×10⁻⁴ M)

Solving:

pH=3.07

Finally, the pH of a 8.5×10⁻⁴ M HClO₄ solution is 3.07.

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If we sum the molar masses of the elements, we find that the molar mass of the compound C₅₅H₇₂N₄O₅ is 869.31 g/mol.

The molar mass is the mass in grams of 1 mole of a substance.

To calculate the molar mass of a compound, we need to sum the molar masses of the elements that form it, which can be found in the periodic table.

M(C₅₅H₇₂N₄O₅) = 55 M(C) + 72 M(H) + 4 M(N) + 5 (O)

M(C₅₅H₇₂N₄O₅) = 55 (12.01 g/mol) + 72 (1.01 g/mol) + 4 (14.01 g/mol) + 5 (16.00 g/mol) = 869.31 g/mol

There is a mistake in the question. The original question is:

C₅₅H₇₂N₄O₅, what is the molar mass?

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Answer:

A.)

Explanation:

A change in state may seem like a chemical reaction, but it is actually a physical change. "A change in state" is basically saying that the appearance of whatever the item is, is taking a change physically. Whether this item was going through some examples of a physical change, which would be:

melting (solid to liquid), evaporation (liquid to gas), condensation (gas to liquid), freezing (liquid to solid), deposition (gas to solid), and sublimation (solid to gas).

A change in color, odor, taste, chemical compound, and temperature all represent a chemical reaction, because these are all things that are happening within the the item that is being given the product of a chemical change.

Think of it this way: internal changes within the product: chemical. External changes within the product: physical.

I hope this helps.

Answer:

I think its C

Explanation:

Answer:

When a high- and a low-pressure air mass are far apart,  air moves slowly from high to low pressure.

Explanation:

k12

The sample response is : how do mass and the type of material affect thermal energy transfer?

So one need to have include the below factors in your answer:

The mass of an object influences allure thermal strength transfer traits. Generally, objects accompanying best public have greater warm strength depository volume.

They can absorb more heat strength before experience a meaningful change in hotness. If an equal amount of heat is used to both objects, the object accompanying better mass will demand more heat strength to raise allure temperature distinguished to the object accompanying tinier mass .

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. In this experiment, you need to examine the idea of the thermal energy transfer. Using a controlled experiment, what might a good question about the variables that affect thermal energy transfer be? Thermal energy transfer depends on many properties, be limit your question to only two. What did you include in your question?

Answer:

0.792g of triphenyl bromide are produced.

Explanation:

The reaction of triphenyl methanol with HBr is:

triphenyl methanol + HBr → Triphenyl bromide.

Reaction (1:1), 1 mole of HBr reacts per mole of triphenyl methanol.

To know the mass of triphenyl bromide assuming a theoretical yield (Yield 100%) we need to find first limiting reactant:

Moles triphenyl methanol (Molar mass: 260.33g/mol) =

0.220g × (1mol / 260.33g) = 8.45x10⁻³ moles Triphenyl methanol

Moles HBr (Molar mass: 80.91g/mol; 33%=33g HBr/100mL) =

0.60mL ₓ (33g / 100mL) ₓ (1mol / 80.91g) = 2.45x10⁻³ moles HBr

As amount of moles of HBr is lower than moles of triphenyl methanol, HBr is limiting reactant.

As HBr is limiting reactant, moles produced of triphenyl bromide = moles HBr = 2.45x10⁻³ moles

As molar mass of triphenyl bromide is 323.2g/mol, mass of triphenyl bromide is:

2.45x10⁻³ moles × (323.2g / mol) =

Answer:

Main-sequence stars, including the sun, form from clouds of dust and gas drawn together by gravity. ... The core that is left behind will be a white dwarf, a husk of a star in which no hydrogen fusion occurs. Smaller stars, such as red dwarfs, don't make it to the red giant state.

Explanation:

good luck i hope this helped!

Answer:

C) one magnesium and one oxygen

Nadia will take 8 seconds to reach her friend's house.

Speed is the measure of the distance traveled by an object per unit of time. It is a scalar quantity and is typically expressed in units such as meters per second (m/s), miles per hour (mph), or kilometers per hour (km/h).

To calculate the time Nadia will take to reach her friend's house, we can use the formula;

time = distance / speed

where distance is the amount of space traveled by an object, and time is the duration of travel.

Put the values given in the problem, we have:

time = 24 meters / 3 m/s

time = 8 seconds

Therefore, Nadia will take 8 seconds.

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Answer:

hope this helps you

Explanation:

Rejects New Methods: problem with peer review

Identifies sources of errors: reason for peer review

Directs funding: reason for peer review

Takes time: problem with peer review

Sometimes fails: problem with peer review

Answer:

Rejects new methods:  

✔ problem with peer review

Identifies sources of errors:  

✔ reason for peer review

Directs funding:  

✔ reason for peer review

Takes time:  

✔ problem with peer review

Sometimes fails:  

✔ problem with peer review

Explanation:

The correct order of the particles that give texture to the soil from smallest to largest is clay, silt, and sand; option C.

Soil texture refers to a physical classification of the component and types of soils based on their physical texture either as coarse or fine particles.

There are several types of soils and these various types of soils have different textures.

The types of soils and their arrangement based on increasing particle size are as follows:

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Q = Ksp = 1 × 10^(-12).

Substituting the values into the Nernst equation, we have:

0.799 V = E° - (RT/2F) * ln(1 × 10^(-12))

Now, solving for E°:

E° = 0.799 V + (RT/2F) * ln(1 × 10^(-12))

The value of R is the ideal gas constant, T is the temperature in Kelvin, and F is the Faraday constant.

To find the standard reduction potential at 25°C for the half-reaction Ag2CrO4(s) + 2e¯ → 2Ag(s) + CrO4²-(aq), we can use the Nernst equation, which relates the standard reduction potential (E°) to the equilibrium constant (K) and the reaction quotient (Q).

The Nernst equation is given as follows:

E = E° - (RT/nF) * ln(Q)

Given information:

Ksp = 1 × 10^(-12)

E = +0.799 V (standard reduction potential of Ag+ to Ag)

Since the reaction involves the dissolution of Ag2CrO4(s), the reaction quotient Q can be expressed as [Ag+]²/[CrO4²-].

Since the stoichiometry of the reaction is 2:1 for Ag2CrO4 to Ag+, we can say that [Ag+]² = Ksp.

Therefore, Q = Ksp = 1 × 10^(-12).

Substituting the values into the Nernst equation, we have:

0.799 V = E° - (RT/2F) * ln(1 × 10^(-12))

Now, solving for E°:

E° = 0.799 V + (RT/2F) * ln(1 × 10^(-12))

The value of R is the ideal gas constant, T is the temperature in Kelvin, and F is the Faraday constant.

Please note that without specific values for temperature (T) and the ideal gas constant (R), the exact standard reduction potential at 25°C cannot be determined.

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The number of moles 2.44 x 10²⁴ H₂O molecules will be having is 4.05.

Converting between molecules and moles is done by either multiplying by or dividing by Avogadro's number.  To go from molecules to moles, divide the number of molecules by 6.02 x 10²³.

Avogadro's number, which is equal to 6.022 × 10²³, is the number of units in one mole of any material (defined as its molecular weight in grams). Depending on the substance and the nature of the reaction, the units could be electrons, atoms, ions, or molecules.

Thus,

No. of molecules = No. of moles × Avogadro no.

from the question we know,

No. of molecules = 2.44 × 10 ²⁴

Avogadro no. = 6.02 × 10²³

i.e. 2.44 × 10²⁴ = No. of moles  × 6.02 × 10²³

No. of moles = 2.44 × 10 ²⁴

                         6.02 × 10²³

No. of moles = 4.05

The number of moles 2.44 x 10²⁴ H₂O molecules will be having is 4.05.

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Answer:  A

Explanation:

it's helpful

you can try this answer

The arrow in a chemical reaction can be translated as the following:

A. yields

C. react to form

The element that has chemical properties most similar to sodium is d. rubidium.

What is rubidium?

Rubidium is in the same group (group 1) as sodium in the periodic table and has similar chemical properties, such as reactivity with water and the tendency to form ionic compounds with halogens. Magnesium, oxygen, and phosphorus are not in the same group as sodium and have different chemical properties.

What is periodic table?

The periodic table is a tabular display of all known chemical elements, arranged according to their atomic structure and properties. It is arranged in rows and columns, with elements placed in order of increasing atomic number, which is the number of protons in an atom's nucleus. The periodic table is a powerful tool for predicting the chemical behavior of elements and for understanding the relationships between different elements. It is used extensively in chemistry, physics, and other sciences to help understand the properties and behavior of different elements, and to guide research and development in many different fields.

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