Which statement describes one way in which global winds affect weather and
limate?
A. Global winds move counterclockwise in the southern hemisphere.
B. The Coriolis effect always moves weather from north to south.
C. Trade winds form from the movement of ocean gyres.
D. Westerlies move weather from west to east across the United
States.

Answer:

\(\huge\boxed{\sf D = 7.8 \ g/cm^3}\)

Explanation:

Density = Mass / Volume

Where Mass = 39 g and Volume = 5 cm³

So,

\(\sf Density = \frac{39}{5} \\Density = 7.8 g/cm^3\)

Takealot excels at providing convenience, extensive product selection, competitive pricing, and a seamless online shopping experience as its value proposition for consumers.

Convenience is a key aspect of Takealot's value proposition. As an online retailer, Takealot offers the convenience of 24/7 shopping from the comfort of one's own home.

Customers can browse a wide range of products, place orders, and have them delivered directly to their doorstep.

Takealot also offers an extensive product selection, spanning various categories such as electronics, fashion, home goods, and more.

This breadth of choices allows consumers to find and compare different products all in one place, saving them time and effort compared to traditional retailers with limited inventory.

Competitive pricing is another area where Takealot excels. By operating online, the company has lower overhead costs compared to brick-and-mortar retailers, enabling them to offer competitive prices and discounts to their customers.

The seamless online shopping experience provided by Takealot includes user-friendly interfaces, secure payment options, and efficient delivery services. This enhances customer satisfaction and convenience.

In contrast, traditional non-online retailers typically have limited operating hours, smaller product selections, and may not offer the same level of convenience and competitive pricing.

They often require customers to physically visit their stores, which can be time-consuming and may not provide the same level of ease and accessibility as online platforms like Takealot.

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Answer:smashing an object into many pieces is a physical change

Explanation:

becauseee i’m not sure i’m getting points

Answer:

smashing an object into many pieces is a physical change

Explanation:

The value of x in the figure is

An angle is a geometric figure formed by two rays or line segments that share a common endpoint. This common endpoint is called the vertex of the angle, and the two rays or line segments that form the angle are called its sides.

Angles are measured in degrees, and a full circle contains 360 degrees. Angles can be classified based on their measure. A right angle measures exactly 90 degrees, an acute angle measures less than 90 degrees, and an obtuse angle measures more than 90 degrees but less than 180 degrees.

The figure consist of angel which is an acute angle, an acute angle are angles less than 90 hence 55 is the possible value

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Answer:

The air flow carries away the carbon dioxide formed during the decomposition. Once accumulated in the furnace or if the air was not allowed to stream through, it begins to react again with the newly formed calcium oxide, equilibrating rather than completing the reaction.

Based on the given data, the value of the rate constant (k) is approximately 576 M⁻² s⁻¹.

To determine the value of the rate constant (k) based on the given data, we can use the method of initial rates.

The rate law for the reaction is given as: rate = k[NO][Cl₂]

By examining the data, we can compare the initial concentrations of [NO] and [Cl₂] with their corresponding initial rates. We can choose any of the three trials to perform this comparison. Let's use Trial 1:

Trial 1:

[NO] = 0.025 M

[Cl₂] = 0.030 M

Initial rate = 0.432 M/s

Using the rate law equation, we can substitute the values into the equation and solve for k:

0.432 M/s = k(0.025 M)(0.030 M)

k = 0.432 M/s / (0.025 M)(0.030 M)

k ≈ 576 M⁻² s⁻¹

Therefore, based on the given data, the value of the rate constant (k) is approximately 576 M⁻² s⁻¹.

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Nasogastric intubation is a medical procedure in which a flexible tube is inserted through the nose and passed down the throat into the stomach. Enteral feedings refer to the delivery of nutrition directly into the gastrointestinal tract, specifically the stomach or small intestine

To prioritize actions for nasogastric intubation and enteral feedings in an adolescent, the following steps can be taken:

1. Prepare the formula, tubing, and infusion device: Gather all the necessary equipment required for the procedure, including the enteral feeding formula, appropriate tubing, and the infusion device (if using a pump). Ensure that the equipment is clean and in proper working condition.

2. Check expiration dates and note the content of the formula: Verify the expiration dates of the enteral feeding formula and discard any expired products. Take note of the nutritional content and any specific instructions provided by the healthcare provider regarding the formula.

3. Ensure that the formula is at room temperature: Some enteral formulas may require warming to room temperature before administration. Follow the manufacturer's instructions for warming if necessary, ensuring the formula is not too hot to avoid causing discomfort or harm.

4. Set up the feeding system via gravity or pump: Depending on the healthcare provider's order, set up the feeding system using either gravity or a pump. Follow the manufacturer's instructions for assembling the system correctly and securely.

5. Mix or shake the formula, fill the container, prime the tubing, and clamp it: If using powdered formula, mix it with the appropriate amount of water as directed by the manufacturer. Shake the formula well to ensure it is adequately mixed. Fill the container with the prepared formula and connect it to the tubing. Prime the tubing by allowing the formula to flow through it until all the air bubbles are removed. Clamp the tubing to prevent any spillage.

6. Assist the client to Fowler's position or elevate the head of the bed to a minimum of 30°: Position the adolescent in Fowler's position (sitting up at a 90-degree angle) or elevate the head of the bed to at least 30 degrees. This position helps prevent aspiration and facilitates the movement of the formula into the stomach.

7. Auscultate for bowel sounds and monitor tube placement: Use a stethoscope to auscultate the abdomen for bowel sounds. Absence of bowel sounds may indicate potential complications. Additionally, verify the placement of the nasogastric tube by checking for carbon dioxide detection, X-ray confirmation, or following facility-specific protocols.

8. Check gastric contents for pH: Aspirate a small amount of gastric contents using a syringe. Test the pH of the aspirate using pH strips or a pH meter. A pH range between 0 and 4 is considered a good indication of appropriate placement within the stomach.

9. Aspirate for residual volume: To assess gastric residual volume, use a syringe to withdraw the contents of the stomach through the nasogastric tube. Note the amount and appearance of the aspirate, as excessive residual volume may indicate feeding intolerance or delayed gastric emptying.

10. Flush the tubing with at least 30 mL of tap water: After checking gastric residual volume, flush the nasogastric tube with a minimum of 30 mL of tap water to ensure patency and prevent tube occlusion.

11. Administer the formula: Begin the enteral feeding by connecting the tubing to the nasogastric tube and initiating the flow of the formula according to the prescribed rate and schedule. Monitor the client's response during the feeding for any signs of intolerance or complications.

Throughout the procedure, adhere to proper infection control practices, maintain open communication with the adolescent and their family, and provide appropriate education and support.

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Answer:

a is write

Explanation:

Why are all ionic compounds crystalline in structure?

Ionic compounds are generally hard, but brittle. ... The repulsive forces between like-charged ions cause the crystal to shatter. When an ionic crystal breaks, it tends to do so along smooth planes because of the regular arrangement of the ions.

The science that is primarily concerned with the study of matter and the changes it undergoes is chemistry (Option B).

Chemistry is the scientific study of matter, its properties, composition, structure, behavior, and the changes that matter undergoes during reactions with other substances. In a nutshell, chemistry deals with the characteristics and behavior of atoms and molecules, as well as their transformations, energy changes, and interactions.

The study of chemical reactions and the behavior of matter in different environments is the primary focus of chemistry. Therefore, chemistry is the science that is primarily concerned with the study of matter and the changes it undergoes.

Thus, the correct option is B.

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Answer:

1. 0.35 moles NaOH

2. \(5.10x10^{-4}\) moles \(H_2SO_4\)

3. 505.4 g Pb

4. 1.46 g HCl (if that is wrong it's 1.5 g HCl due to sig figs)

5. \(3.01x10^{23}\) atoms of Ag

6. \(2x10^{-10}\) atoms of Cu

Explanation:

1. The mass of NaOH is 40g. 22.99(Na)+16(O)+1.01(H)=40 g

14 g NaOH *\(\frac{1 mol NaOH}{40 g NaOH}\) = 0.35 moles of NaOH

2. Mass of \(H_{2} SO_{4} = 2(1.01)+32.06+4(16) = 98.08\)

0.05 g \(H_2SO_4\) ×\(\frac{1 mol H_2SO_4}{98.08g H_2SO_4} = 5.10 x10^{-4}\)

3. mass of Pb = 106.4 g

4.75 moles Pb×\(\frac{106.4 g Pb}{1 mol Pb} =505.4 g Pb\)

4. mass of HCl = 1.01 +35.45 = 36.36 g

0.04 mol HCl x \(\frac{36.46 g HCl}{1 mol HCl} = 1.456 = 1.5\)

5. 5.00 mol Ag x\(\frac{6.022x10^{23} atoms }{1mol Ag} = 3.01x10^{24} atoms\)

6. \(3x10^{-10} moles\) Cu x\(\frac{6.022x10^{23} atoms}{1 mol Cu} = 1.8668x10^{14}= 2x10^{14}\) atoms of Cu

yesssssssssssssssssssssaa

Answer:

D

Explanation:

usa testprep!!!!!

Answer:The nervous system or the neural system is a complex network of neurons specialized to carry messages. The complexity of the nervous system increases as we move towards higher animals.

Explanation:

Answer:

Explanation:

e. Val (Valine)

Answer:

b

Explanation:

Answer:

B. Color of the solute

Explanation: Study island ;)

Answer:

a.)Semiconductors are more conductive than a nonmetal and less conductive than a metal.

Explanation:

Answer: A is your answer

Explanation: yor welcome =]=]=]=]

water is a pure substance

To calculate how long it will take for a first order reaction in A to reach 10% of its initial concentration, you can use the following formula:

Where k is the rate constant of the reaction and ln is the natural logarithm. In this case, since the half-life of the reaction is 2 minutes, k can be calculated as 0.693 / 2 minutes, or 0.346. Plugging this value into the formula, we get:

This equals approximately 8.1 minutes, so it will take 8.1 minutes for the reaction to reach 10% of its initial concentration.

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The given chemical equation shows the decomposition of 9.00 moles of sulfur trioxide to sulfur dioxide and oxygen gas. The enthalpy change for this reaction is given as ΔH° = 198 kJ/mol.

Enthalpy change refers to the amount of heat energy released or absorbed during a chemical reaction. A positive value of ΔH° indicates that the reaction is endothermic, meaning it absorbs heat energy from the surroundings, while a negative value indicates an exothermic reaction, meaning it releases heat energy to the surroundings.

In this case, the given value of ΔH° is positive, indicating that the reaction is endothermic. Therefore, for the given reaction, the change in enthalpy can be calculated as follows:

ΔH = (9.00 mol) x (198 kJ/mol) = 1782 kJ

This means that when 9.00 moles of sulfur trioxide decomposes to sulfur dioxide and oxygen gas, 1782 kJ of heat energy is absorbed from the surroundings. Hence, the correct option is (e) 1782 kJ.

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Answer:

you would more than likely have hot coca.  

Explanation:

Because when its cold out you don't want something cold, its common sense  lol.

Answer:

The correct answer is 66.1 g

Explanation:

According to Law of Conservation of the Mass, the mass of an isolated system is neither created or destroyed during chemical reactions. It is transformed. So, in a chemical reaction, the atoms of reactants are reoganizated by forming other compounds but the mass is conserved. Thus, the total mass of reactants is always equal to the total mass of products. If 23.6 g of a substance reacts with 42.5 g of another substance, the total mass of the products will be equal to the total mass of reactants:

23.6 g + 42.5 g = 66.1 g reactants = 66.1 g products

Answer:

Option B = 60,600 mg  (correct option)

Explanation:

First of all we will have an idea which numbers are consider as significant.

1 = All non-zero digits are consider significant figures like 1, 2, 3, 4, 5, 6, 7, 8, 9.

2= Leading zeros are not consider as a significant figures. e.g. 0.02 in this number only one significant figure present which is 2.

3= Zero between the non zero digits are consider significant like 105 consist of three significant figures.

4= The zeros at the right side e.g 3400 are also significant. There are four significant figures are present.

In given options, Option A 60.6 mg have 3 significant figures.

Option B have 5 significant figures.

Option C have 4 significant figures.

Option D have 3 significant figures.

Thus option b is correct option which have more significant figures.

Answer:

Likely an issue with the mitral valve.

Explanation:

If I read this correctly, you are likely referring to mitral regurgitation, which is a process where your mitral value does not close tightly enough to stop the blood to flow into left atrium.

Normally, when the left ventricle is full, the mitral valve shuts to prevent blood blood from flowing backward into the atrium while the ventricle contracts, and this allows for blood to go to aorta and to body. According to question since the process is reversed, I am gonna go out on a limb and say mitral valve is likely the structure affected by this since and how I came to conclusion is all the explaintion I did earlier.

Enantiomers are: E) non-superposable molecules that are mirror images of each other.

In Science, stereoisomerism is sometimes referred to as spatial isomerism and it can be defined as a form of isomerism in which chemical species of molecules have the same molecular formula, but differ in how their atoms are positioned (arranged) in three-dimensional orientations of space.

This ultimately implies that, stereoisomerism occurs when two molecules are composed of the same atoms that are connected in the same sequence but these atoms are positioned (arranged) differently in space.

Based on scientific records, enantiomers are mirror images of one another and cannot be aligned in space to be identical because they are non-superposable molecules.

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When a student accidentally adds 2.0g of Mg metal instead of Zn to react with 5.0g of \(CuSO_4\), the copper (II) sulfate solution would react with the Mg, because Cu is less active than Mg. However, not all the copper (II) sulfate reacted to form Cu. Therefore, option C is the correct answer

\(CuSO_4 + Mg \rightarrow Cu + MgSO_4\)

Copper (II) sulfate reacts with magnesium to form copper and magnesium sulfate, and the reaction is exothermic. As a result, the temperature of the solution increases.

When magnesium is added to a copper (II) sulfate solution, the magnesium displaces copper from copper (II) sulfate, forming magnesium sulfate and copper.

The addition of magnesium instead of zinc means that the copper (II) sulfate solution would react with magnesium rather than zinc. Magnesium has a lower reactivity than zinc, which means that it will displace copper from copper (II) sulfate instead of zinc.

However, not all the copper (II) sulfate will be reacted to form copper, since only a portion of the copper (II) sulfate is consumed by the reaction with magnesium.

Therefore correct option is c " the copper (II) sulfate solution would react with the Mg, because Cu is less active than Mg. However, not all the copper (II) sulfate was reacted to form Cu."

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The properties of compounds depend on their structure.

When 2 or more atoms link up, they create a molecule. And we can say that a collection of molecules is called a compound.

Matter on Earth is in the form of solid, liquid, or gas. Solids, liquids, and gases are made of tiny particles called atoms and molecules.

Answer: B. Matter

We structure the Lewis points and outline the forms of the following elements:

For a. SeCl4, the Lewis dot structure is:

  Se | Cl

= Cl | Cl

It has a tetrahedral shape with Se as the central atom.

For b. I3-, the Lewis dot structure is:

  I |

- I | I

It has a trigonal planar shape with I as the central atom.

For c. PSCl3, the Lewis dot structure is :

P | Cl

- - Cl | Cl Cl

It has a trigonal pyramidal shape with P as the central atom.

For d. IF4-, the Lewis dot structure is :

I | F

- - F | F F

It has a square planar shape with I as the central atom.

For e. PH2-, the Lewis dot structure is :

P | H

- H | H

It has a bent shape with P as the central atom.

For f. TeF42-, the Lewis dot structure is :

Te | F

- - F | F F

It has an octahedral shape with Te as the central atom.

For g. N3-, the Lewis dot structure is:

N |

- N | N

It has a linear shape with N as the central atom.

For h. SeOCl4, the Lewis dot structure is:

Se | O | Cl

- - - Cl | Cl Cl

It has a tetrahedral shape with Se as the central atom.

For i. PH4+, the Lewis dot structure is:

P | H

- H | H H | H

It has a tetrahedral shape with P as the central atom.

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Answer:

1. Heat from the pan transfers directly to the oil. 2. Heat from the pan transfers directly to the oil. 3. heated by the radiation in the microwave.

Explanation:

Answer:

The new atomic mass of oxygen is 64u

Explanation:

Given

Taking the mass by part on the scale of 1/12 gives atomic mass of oxygen = 16 u

Now, when the scale is changed from 1/12 to 1/3, the new mass would become

\(\frac{16}{\frac{1}{12} } * \frac{1}{3} \\= \frac{16 * 12}{3} \\= 64\)

The new atomic mass of oxygen is 64u