1.) Explain the difference between weather and climate.
2.) Why is latitude a factor in the uneven heating of Earth's surface?
3.) A particular air mass contains extremely cold, dry air. Based on this information, how would this air mass most likely be classified?
4.) What's the intertropical convergence zone (ITCZ)?
5.) How do polar jet streams differ from tropical jet streams?

:::::::::::::::::::::::::::::::::::::::::::::::: Answers::::::::::::::::::::::::::::::::::::::::::::::
1.) Weather refers to temporary atmospheric conditions that are occurring at a given point and time. Climate refers to the average weather conditions that occur in an area over an extended period.
2.) Regions nearer the equator receive sunlight more directly than regions located farther from the equator. As a result, regions near the equator experience warm temperatures all year. Regions located farther from the equator experience more temperature fluctuations.
3.) An air mass containing extremely cold, dry air would likely be classified as a continental arctic (cA) air mass.
4.) The ITCZ is the point at which trade winds from the Northern Hemisphere converge with trade winds from the Southern Hemisphere. This area typically experiences calm weather.
5.) Polar jet streams occur at higher latitudes. They separate the polar easterlies from the prevailing westerlies. Tropical jet streams occur at lower latitudes. They separate the trade winds from the prevailing westerlies.

Answer:

the correct answers are A,D,E, and G

Explanation:

For the maximum concentration of Ag+ is mathematically given as

x = 3.6×10−5

Generally, the Ksp equation for this reaction is mathematically given as

[tex]K_{sp}=[Ag^+]^2[CO_3^{2-}][/tex]

[CO3^2-]=0.00620M

Ksp =[Ag+}^2 x 0.00620

8.1x10^-12 = x^2 x 0.00620

x = [tex]\sqrt{8.1*10^{-12}/0.00620}[/tex]

x = 3.6×10−5

In conclusion, the maximum concentration of Ag⁺ is

x = 3.6×10−5

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Answer:

The energy required is 1.634×J, the wavelength is 1.215×m, and the kind of electromagnetic radiation is the ultraviolet radiation.

Explanation:

In the question above, the initial level = 1, and = 2. Then, we use Rydberg's equation to calculate the wavelength of the light absorbed by the atom during the transition.

[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]

Let's calculate Equilibrium constant for the following reaction. [tex] \sf{K_c} [/tex]

if we balance the equation, we will get :

[tex] \qquad\sf{C_{(s)}+ CO_2\:{(g)} \leftrightarrow2\: CO_{(g)}} [/tex]

According to question ~

Answer:

The water in the hydrate (referred to as "water of hydration") can be removed by heating the hydrate. When all hydrating water is removed, the material is said to be anhydrous and is referred to as an anhydrate.

Explanation:

If the water is not completely removed from salt during heating process it will result in higher mole ratio of water to salt as mass of water will also be accounted while calculating mole ratio.

Salt is defined as a chemical compound which is ionic in nature and consists of cation and an anion.It has no net electrical charge as the charges are completely neutralized in case of salts.

They are classified as acidic, basic or neutral salts depending on the ions they produce on dissolution.They have wide variety of colors depending on the elements from which they are formed and have five basic tastes.Salts are usually odorless  except a few exceptions . They are highly soluble in water and are insulators in the solid state, to make them conductive they need to be melted or dissolved.

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Answer:

565.4 K

Explanation:

Remember PV = nRT

630 * 50 =  25/28 * 62.4 T

T = 565.4 kelvin

Answer:

From the given balanced equation, the valid mole ratio is four moles of Fe over 3 moles of moles of c02..

Explanation:

Mole ratio can be defined as the ratio of mole compound with the another.

Based on the milligram per Kg of soil sample of each analyte, calcium ion, Ca2+ and magnesium ion, Mg2+ are both classified as macronutrients.

Soil nutrients are minerals which are found present in the soil and which are required by plants for their growth and development.

Soil nutrients can be classified based on amount needed by plants as well as the amount present in the soil into:

The mg/Kg of each analyte in the soil sample is as follows:

mass of soil sample = 2.65 g = 0.00265 kg

Calcium ion:

amount per mg/Kg of soil sample = 0.625mg/0.00265 kg

amount per mg/Kg of soil sample = 236 mg/kg

Magnesium ion:

0.00245 g = 2.45 g

amount per mg/Kg of soil sample = 2.45 mg/0.00265

amount per mg/Kg of soil sample = 924 mg/Kg

Therefore, calcium ion, Ca2+ and magnesium ion, Mg2+ are both classified as macronutrients.

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Answer:

p2 = .75 atm

Explanation:

p1 v1  = p2 v2

5 * 1.5  = p2 10    

Answer:

Socratic app

Explanation:

it will help you

Based on the evidence in the solubility graph, when 10 g of Ce2(SO4)3 is dissolved in 100 mL of water at 20°C, the solution is said to be saturated.

An unsaturated solution is a solution which contains less solute than it can actually dissolved in a given volume of solvent at a given temperature.

A solubility curve or graph provides information about the solubility of a solute at a given temperature.

From the solubility graph given, at 20°C, less than 10 g of Ce2(SO4)3 will be dissolved in 100 mL of water.

Therefore, when 10 g of Ce2(SO4)3 is dissolved in 100 mL of water at 20°C, the solution is said to be saturated.

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Answer:

The device can collect up to 1.5 kg (3.3 lbs) of waste per day and holds a total of 20 kg (44 lbs) of waste. To illustrate this more vividly: A Seabin can collect up to 90’000 plastic bags, 37’500 coffee cups or 16’500 PET bottles per year.

Explanation:

Not sure what you mean??

If 4.0 L of a 4.6M SrCl2 solution is diluted to 45L, the molarity of the diluted solution is 0.41M.

The molarity of a diluted solution can be calculated using the following formula:

M1V1 = M2V2

Where;

According to this question, 4.0 L of a 4.6M SrCl2 solution is diluted to 45L, the molarity of the diluted solution is calculated as follows:

4.6 × 4 = 45 × M2

18.4 = 45M2

M2 = 18.4/45

M2 = 0.41M

Therefore, if 4.0 L of a 4.6M SrCl2 solution is diluted to 45L, the molarity of the diluted solution is 0.41M.

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Explanation:

The base form (or root) of a verb is the form listed in the dictionary. It is the version of the verb without any endings (endings such as -s, -ing, and ed). The base form is the same as the infinitive (e.g., to walk, to paint, to think) but without the to.

The formation of ammonia gas involves reacting hydrogen gas and nitrogen gas in a mole ratio of 3 to 1. as shown below:

Ammonia gas is formed from the reaction between nitrogen gas and hydrogen gas.

Three moles of hydrogen gas will react with 1 mole of nitrogen gas to form 2 moles of ammonia gas.

The equation of the reaction is given below as:

[tex]N_2 + 3H_2 \rightarrow 2NH_3[/tex]

Therefore, the formation of ammonia gas involves reacting hydrogen gas and nitrogen gas in a mole ratio of 3 to 1.

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If a 50.00 mL of 0.0155 M HI(aq) is mixed with 75.00 mL of 0.0106 M KOH(aq), the pH of the final solution  is mathematically given as

pH=13.16

Generally, the equation for the Chemical reaction   is mathematically given as

2HI+Ba(OH_2)--->BaI2+2H2O

Therefore

pOH=-log{OH}

pOH=-log(6.52)

pOH=0.8142

In conclusion, for the pH

pH+pOH=14

pH=14-0.8142

pH=13.16

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The mass of sodium bicarbonate (NaHCO₃) used in the experiment is 1.997 g

From the question we are to calculate the mass of NaHCO₃ (sodium bicarbonate) used in the experiment

From the given information

Mass of empty evaporating dish = 46.233g

Mass of evaporating dish + Sodium bicarbonate = 48.230g

∴ Mass of sodium bicarbonate (NaHCO₃) = [Mass of evaporating dish + Sodium bicarbonate] - [Mass of empty evaporating dish]

Mass of sodium bicarbonate (NaHCO₃) = 48.230g - 46.233g

Mass of sodium bicarbonate (NaHCO₃) = 1.997 g

Hence, the mass of sodium bicarbonate (NaHCO₃) used in the experiment is 1.997 g

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Answer:

The answer is D) 51.2%

Explanation:

5.12g of 10.00g of the substance is water:

percentage of water= 5.12 x 10.00 =51.2%

Answer:

b

Explanation:

Answer:

C. When hydrogen has two electrons in its valence shell, it has a full valence shell.

D. Hydrogen can bond with oxygen to make water.

As both C & D are correct, there would be two answers.

Hope this helps!

Explanation:

Answer:

The answer is A: Hydrogen has only one electron shell.

The pressure in atm exerted by 1 mole of methane placed into a bulb with a volume of 244.6 mL at 25°C is 101.94atm.

The pressure of an ideal gas can be calculated using the following formula:

PV = nRT

Where;

According to information in this question;

P × 0.24 = 1 × 0.0821 × 298

0.24P = 24.47

P = 24.47/0.24

P = 101.94atm

Therefore, the pressure in atm exerted by 1 mole of methane placed into a bulb with a volume of 244.6 mL at 25°C is 101.94atm.

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The true statements about activation energy are as follows:

Activation energy is the minimum amount of energy that reactants in a chemical reaction must possess so as to get converted into products.

In a chemical reaction, reactants form products, hence, certain bonds must be broken in the reactant molecules to form the products.

The energy needed to break the bonds of the reactants is known as activation energy.

Therefore, the true statements about activation energy are as follows:

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The corresponding change in pressure in atm is 0.285 atm.

To solve the question, we need to know what pressure is.

This is the force per unit area acting on a surface.

The change in pressure in the mercury barometer is given by ΔP = ρgh where

So, ΔP = ρgh

= 13600 kg/m³ × 9.8 m/s² × 0.217 m

= 28921.76 kg/m-s²

= 28921.76 N/m²

= 28921.76 Pa

Since 1 atm = 101325 Pa

28921.76 Pa = 28921.76 Pa × 1 atm/101325 Pa

= 0.285 atm

So, the corresponding change in pressure in atm is 0.285 atm.

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Answer:

True

Explanation:

This is true.

Earth's atmosphere is composed of about 78 percent nitrogen, 21 percent oxygen, 0.9 percent argon, and 0.1 percent other gases is a true statement.

The main components of the Earth's atmosphere are nitrogen (78%) and oxygen (21%).

Atmosphere, the gaseous layer that surrounds the Earth, is composed of gases such as oxygen, hydrogen and carbon dioxide. It is divided into layers and ensures survival on the planet.

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Answer:

A. Plants

Explanation:

Plants are producers, which make their own food. Other organisms, such as rodents, birds, and wild cats, are consumers, which receive their energy from plants or other consumers.

Answer:

Coal

Explanation:

Explanation:

The atomic number of Uranium is 92. The electron configuration is: [U] = [Rn] 5f3; 7s4 where Radon Rn has 86 electrons and a complete period. This result is respecting the Madelung. BUT … U is an exception !!!

On the period 7 are only 6 electron left for Uranium (92–86). The first 2 electrons are on the principal energy level 7 and occupy the 7s-orbital block. The 3rd electron is placed in the 5f-orbital block. The next 3 electrons are place here as well. The last electron has the unique quantum label (n; l; ml; s) = (5; 3; 0; 0)

To understand this: The first electron of the 5f-orbital block has the label (5; 3, -3; 0). The following electrons have the labels (5; 3; -2, 0), (5; 3; -1; 0), (5; 2; 0; 0). You notice, that the HUND’S RULE is satisfied. ( I always use head 0 before tail 1 to represent the spin.) The f-orbital block is made up of 7 orbitals and therefore can be filled up by at most 14 electrons. When the first electron has the spin 0 then the next 6 electrons must also have the spin 0. With the electron 8 you get the label (5; 3; -3, 1) which tells us, that the spin is opposite to 0. It must be 1. The next 6 electrons also will have spin 1 but are placed in the orbitals -2; -1; 0; 1; 2; 3. Their labels are: (5; 3; -2; 1), (5; 3; -1; 1), (5; 3; 0; 1), (5; 3; 1; 1), (5; 3; 2; 1) and (5; 3; 3; 1) Now the f-block is full !!!

ANSWER: The last electron of U has the label (5; 3; 0; 0). BUT … !!!!!

I hope that you can verify now the correctness of the answer by yourself according to the Madelung.

Please, apply the definitions of the 4 quantum numbers correctly by also respecting the MANDELUNG’S RULE, the OCTET RULLE, the HUND’S RULE.

NOTICE: The Madelung has 21 exceptions. (Wikipedia lists only 20 and treats Ni not as an exception)

Cr, Ni, Cu, Nb, Mo, Ru, Rh, (Pd), Ag, Pt, Au and

La, Ce, Gd, Ac, (Th), Pa, U, Np, Cm, Lr.

In the first group listed: 1 electron moves inwards. In the second group listed: 1 electron moves outwards. Pd and Th have 2 moving electron each. YOU CAN SEE, THAT U IS AN EXCEPTION !!!

CORRECT ANSWER: The last electron of U has the label (6; 2; 0; 0). Can you see the moving electron ??? ❮❮(5; 3; 0; 0) becomes (6; 2; 0; 0)❯❯ Can you see the moving outwards ???

The 21 exception were discovered with spectral analysis. The MADELUNG is not a principle !!! It is only a very simple rule to memorise the electron configurations. By respecting the exceptions, you can correct you Madelung answer !!! Learn the 21 exceptions by heart !

Did you get it ??? (6; 2; 0; 0) is the label of the last electron of U.

Answer:

A: The heat needed to raise the temperature of 1 g of a substance1°C

Explanation:

Specific heat is the temperature required to raise the temperature of the unit mass of a given substance. With that being said, of all options A: protrays the definition perfectly.

Side Note: I hope this helps feel free to let me know if you have any other questions.

#1

Intermolecular bonds:-

#Carbon monoxide

Formula:-

Molecular geometry

Drawing

Bonds=3

#Silicon tetrafluoride

Formula

geometry

Bonds=4

#Titanium (4) Sulfide

Geometry

Bonds=2

Answer:

3 moles of oxygen at STP will occupy a volume of 3×22. 4=67. 2 L.

Explanation:

Answer:

Explanation:

Observation. Observational skills are the starting point for critical thinking. People who are observant can quickly sense and identify a new problem.

Analysis. Once a problem has been identified, analysis skills become essential. ...