Do you guys have any tips for a science report. My topic is pandas.

Please give me panda websites for my report.

I need facts and anything about pandas like their, food, weight, scientific name and more! Thank you so much for helping me!

To make a 50.0 mL solution of 1.7 M sodium carbonate (Na₂CO3), we need to determine the mass of Na₂CO3 required.

To calculate the mass of Na₂CO3 needed, we can use the formula:

Mass = Concentration x Volume x Molar Mass

First, we convert the given volume from milliliters to liters:

Volume = 50.0 mL = 50.0/1000 L = 0.05 L

Next, we substitute the given concentration and volume values into the formula:

Mass = 1.7 M x 0.05 L x Molar Mass of Na₂CO3

The molar mass of Na₂CO3 can be calculated by adding the atomic masses of sodium (Na), carbon (C), and three oxygen (O) atoms:

Molar Mass of Na₂CO3 = (2 x Atomic Mass of Na) + Atomic Mass of C + (3 x Atomic Mass of O)

After obtaining the molar mass value, we can substitute it into the formula and perform the calculation to determine the mass of Na₂CO3 required to make the 50.0 mL solution of 1.7 M sodium carbonate.

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The mole fraction of the sulfur dioxide gas present in a falsk which contains 21.8 g of chlorine gas and 47.8 g of sulfur dioxide gas is 0.708.

Mole fraction of any substance will be calculated by dividing the moles of desired substance by the total moles of the species present in that sample.

Moles can be calculated as:

n = W/M, where

W = given mass

M = molar mass

Moles of 21.8g of chlorine gas = 21.8g / 71g/mol = 0.307mol

Moles of 47.8g of sulphur dioxide gas = 47.8g / 64g/mol = 0.746mol

Mole fraction of sulphur dioxide gas = 0.746 / 0.746+0.307 = 0.708

Hence required mole fraction of sulphur dioxide gas is 0.708.

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The vapor pressure of the aqueous solution containing 10% (by weight) ethylene glycol (62 g/mol) at 25°C can be calculated using Raoult's law.

To determine the vapor pressure of an aqueous solution containing 10% ethylene glycol at 25°C, Raoult's law can be applied. By calculating the mole fraction of ethylene glycol, which is obtained by dividing its weight by its molar mass and dividing by the total weight of the solution, the vapor pressure of ethylene glycol can be determined using Raoult's law.

This law states that the vapor pressure of a component in a solution is equal to the product of its mole fraction and the vapor pressure of the pure component. By substituting the calculated mole fraction and the known vapor pressure of water, the vapor pressure of the solution can be found.

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particulates Is not an examples of primary air pollutants , but sulfur dioxide. carbon dioxide. tropospheric ozone. nitrogen oxide is a example of air pollutant.

Three gasses (O3) combine to form the odorless, colorless gas known as ozone, which occurs naturally in the atmosphere. Both the upper atmosphere of the Earth, known as the stratosphere, and the lower atmosphere, known as the troposphere, can contain it.

Ozone is created in the atmosphere as a result of chemical interactions involving pollutants released from various sources, including as paint evaporation, combustion, consumer products, factories, and other industrial sources.

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Answer:

This is just my guess, but since opposites attract, then im guessing that alikes repel each other. So, they will go away from each other when the ball is released (I think).

Explanation:

Hope this helps! If it did, please mark it as brainliest! It would help a lot! Thanks! :D

The depreciation expense for the year ended December 31, 2016, given the straight-line method, a 5-year useful life, and a salvage value of $600, is $1,320.

The depreciation expense for the year ended December 31, 2016, can be calculated using the straight-line method, which allocates the cost of an asset evenly over its useful life. In this case, the equipment was purchased for $7,200 on July 1, 2016, and has a useful life of 5 years with a salvage value of $600.

To calculate the annual depreciation expense, we need to determine the depreciable cost, which is the original cost minus the salvage value. In this case, the depreciable cost would be $7,200 - $600 = $6,600.

Next, we divide the depreciable cost by the useful life to determine the annual depreciation expense. In this case, the annual depreciation expense would be $6,600 / 5 = $1,320.

Therefore, the depreciation expense for the year ended December 31, 2016, given the straight-line method, a 5-year useful life, and a salvage value of $600, is $1,320.

The depreciation expense is calculated by subtracting the salvage value from the original cost to determine the depreciable cost. Then, the depreciable cost is divided by the useful life of the asset to determine the annual depreciation expense.

In this case, the firm purchased equipment for $7,200 on July 1, 2016, with a 5-year useful life and a salvage value of $600. Therefore, the annual depreciation expense for the year ended December 31, 2016, would be $1,320.

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Answer:

convection

Explanation:

as air is heated, it rises up and away from the heat source, cools then falls closer to the heat source over and over again.

All the reagents that should be combined to carry out the side-chain oxidation of an alkylbenzene. are

-Na2Cr2O7

-aq. H2SO4

To carry out the side-chain oxidation of an alkylbenzene, you would need the following reagents:

Na2Cr2O7 (potassium dichromate)

aq. H2SO4 (sulfuric acid)

Another reaction takes place at the atom that is immediately connected to an aromatic ring. "Side chain oxidation" is the term for this. A strong oxidising agent, such as potassium permanganate (KMnO4) or Jones Reagent (CrO3/H2SO4), is used to treat a compound that has an alkyl group that is directly attached to an aryl group. This causes the benzylic carbon to be oxidised to a carboxylic acid group, which stays attached to the aryl group. The alkyl group's remaining carbon-carbon bonds are broken. The amount of carbon atoms in the alkyl side chain is irrelevant for the oxidation reaction, but the benzylic carbon must have at least one benzylic hydrogen attached.

As a result, these reactions have no effect on tertiary carbons connected to aromatic rings. It should be observed that an ortho/para directing alkyl group is changed to a meta directing carboxylic during this reaction.

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Determine how many mL of solution A (acetic acid-indicator solution) must be added to solution B (sodium acetate-indicator solution) to obtain a buffer solution that is equimolar in acetate and acetic acid. Solution A: 10.0 mL 3.0e-4M bromescol green

hoped I helped

The electronegativity of the element affects the ability of its compounds to dissolve in different solvents.

Electronegativity is a measure of an atom's ability to attract shared electrons to itself.

Polar bonds have a positive and negative side to them, and therefore can attract water dipoles and dissolve in water.

If the polarities of the solvent and solute match (both are polar or both are nonpolar), then the solute will probably dissolve.

If the polarities of the solvent and solute are different (one is polar, one is nonpolar), the solute probably won't dissolve.

Hence, option D is correct.

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B. It dissolves in water.

<33

Answer:

B it dissolves in water

Explanation:

Their molecules bond to water molecules

Answer:

I don't see any following statements

Explanation:

could you give me some and I'll be happy to help : )

Answer:Settlers wanted more land and occasionally forced Native Americans into slavery. Native Americans refused to trade with the European settlers. Native Americans were outnumbered so they began attacking settlers out of fear. Settlers refused to share new farming and hunting techniques with the Native Americans.

Explanation:

Answer: Changing the number of electrons will change the overall charge on an atom.

Explanation:

An atom that loses electrons will become positively charged and an atom with added electrons will become negatively charged. ... A charged atom is called an ion.

Answer:

Explanation:

1)The charge of one electron is given by

           1 e = - 1.6 * 10-19 C

Then – 1 C = 1 e / ( 1.6 * 10-19 )

                 = 6.25 * 1018 e

So one-coulomb charge has 6.25 * 1018 electrons

2)Let q1 and q2 be two charges separated by a distance r

Then q1 = - 40 µC = - 40 * 10-6 C

And    q2 = 108 µC = 108 * 10-6 C

The collection of  6.25 × 10¹⁸ electrons has a charge of approximately 0.100125 coulombs.

Let's break down the calculation step by step;

Charge of an Electron: The charge of a single electron is approximately 1.602 × 10⁻¹⁹ coulombs. This value represents the fundamental charge carried by an electron.

Number of Electrons: You have a collection of 6.25 × 10¹⁸ electrons. This number tells us how many electrons are present in the collection.

Calculating Total Charge: To find the total charge of the collection of electrons, we need to multiply the number of electrons by the charge of each electron:

Total charge = Number of electrons × Charge of each electron

Total charge = 6.25 × 10¹⁸ electrons x 1.602 × 10⁻¹⁹ C/electron

Calculating the Product: Multiply the numerical values and add the exponents:

Total charge = 1.00125 x 10⁻¹ C.

Final Result: The calculated total charge is approximately 0.100125 coulombs

So, the collection of  6.25 × 10¹⁸ electrons has a charge of approximately 0.100125 coulombs. This means that the combined effect of the individual charges of the electrons in the collection results in an overall charge of 0.100125 coulombs.

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One change in homes that could help save electrical energy is to replace all incandescent bulbs with LED bulbs.

There are different ways one can save electrical energy in their home. Some of them include:

LED bulbs are known as Light-Emitting Diode bulbs. They are energy-saving bulbs, although might be more expensive than their incandescent counterparts.

According to research, LED bulbs have the capacity to save up to 75% of energy compared to other bulbs. Thus, if anyone is looking to save electrical energy and they have incandescent bulbs at some lighting points, they will get very good results by replacing them with LED bulbs.

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Answer: One change in homes that could help save electrical energy is to replace all incandescent bulbs with LED bulbs. They are energy-saving bulbs, although might be more expensive than their incandescent counterparts.According to research, LED bulbs have the capacity to save up to 75% of energy compared to other bulbs. Thus, if anyone is looking to save electrical energy and they have incandescent bulbs at some lighting points, they will get very good results by replacing them with LED bulbs.Turning off all lights and electrical appliances when not in use. Reduction of electrical appliances. For tv, set brightness, contrast and enable power saving mode. These are two other ways to consume less energy in your home.

Explanation: I hope this helps

The grocer's power output is 60 Watts. Power is measured in Watts, which represents the rate of energy transfer or work done per unit time.

Power is defined as the rate at which work is done or energy is transferred. It can be calculated using the formula: Power = Work / Time.

In this case, the work done by the grocer is equal to the force applied multiplied by the distance moved. The force applied is 100 N and the distance moved is 1.5 m, so the work done is:

Work = Force * Distance

Work = 100 N * 1.5 m

Work = 150 Joules

The time taken to perform the work is 2.5 seconds. Now we can calculate the power output:

Power = Work / Time

Power = 150 Joules / 2.5 seconds

Power = 60 Watts

Therefore, the grocer's power output is 60 Watts. Power is measured in Watts, which represents the rate of energy transfer or work done per unit time. It indicates how quickly the grocer is able to lift the crate of apples to the shelf.

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1. The water inside a plant will not be able to come out.

2. It would kill the plants and species on Earth.

3. There would be no lakes, ocean, or water on land.

Nutrient cycling, The correct option is D. Nutrient cycling

Kera's investigation is specifically focused on how nitrogen runoff from organically fertilized cornfields is affecting the local streams and lakes. This indicates that the study is related to the movement and cycling of nutrients, specifically nitrogen, in the ecosystem. Therefore, the focus of her study is on nutrient cycling.

Kera's investigation is important as it helps to understand how organic fertilizers impact the environment and how nutrient cycling in aquatic ecosystems can be impacted by human activities. This knowledge can be used to develop better farming practices and management strategies to minimize the negative impacts on the environment.

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Answer: The metal block.

Explanation:

Assuming they are all the same size, if you picked put the three on a scale, you will see that the metal block is the most heavy.

Answer: orbitals supernumerary

Explanation:

Answer:

both S orbital and p orbitals

Explanation:

took the exam got the question right.

Milliliters of a 0.150 m HCl solution are needed to neutralize 25.85 ml of a 0.375 m KOH solution is 172 ml

Milliliters is the very small amount if liquid

Here given data is

HCl solution =  0.150 m

KOH solution =  0.375 m

Neutralize = 25.85 ml

We have to calculate milliliters = ?

And the reaction is

HCl + KOH → KCl + H₂O

Molarity = mol solute/ L solution

Mol KOH = (0.375 mol/L) 25.85 ml = 0.02585 L =  0.02585 mole of KOH

The coefficients of the chemical equation to find the relative number of moles of HCl

0.02585 mole of KOH ( 1mol HCL/1 mol KOH) =  0.02585 mol HCl

Molarity equation again to find the volume of HCl solution

Molarity = mol solute/ L solution

L HCl solution = 0.02585 mol HCl/ 0.150 m = 0.172 L = 172 ml

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With an amide, the electron pair is delocalized onto the carbonyl group by resonance.

This resonance stabilization makes the amide much less basic than an alkylamine.

This means that the double bond character of the carbonyl group is partially transferred onto the nitrogen atom, resulting in a partially double bond character between the nitrogen and carbon atoms. This resonance stabilization makes the amide much less basic than an alkylamine, which does not have this electron delocalization.

The nitrogen atom in an amide is less likely to donate a lone pair of electrons to form a new bond, as these electrons are involved in the resonance stabilization.

As a result, amides are less reactive towards acids or electrophiles than alkylamines.

In summary, the delocalization of the electron pair onto the carbonyl group by resonance in an amide makes it less basic and less reactive than an alkylamine.

In an amide, the electron pair (lone pair) on the nitrogen atom (1) is delocalized onto the carbonyl group's oxygen atom (2) by resonance. This delocalization process spreads the electron density across multiple atoms, making the amide nitrogen (3) much less nucleophilic and basic (4) than an alkylamine.

The decreased nucleophilicity and basicity result from the electron pair's involvement in resonance stabilization, reducing its availability for interaction with other molecules or ions.

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The molar mass of the unknown solute is 0.15 g/mol.

We know that the boiling point is one of the colligative properties thus it depends on the amount of the substance. Then we can be able to recall that;

Molality of the solute = Number of moles/ mass of the solvent

We have that;

Molality = 10.5 m

Number of moles of the solute = 1.5 g/M

Where M is the molar mass of the solute

Mass of the solution = 1Kg'

Then;

10.5 = 1.5 g/M/1

10.5 = 1.5 g/M

M = 1.5 g/10.5

M = 0.15 g/mol

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Answer: the Aufbau principle.

Explanation:

Answer:

What can be said about these common forms of sulphur is that;

(B) They will exhibit same chemical properties

Explanation:

Allotropy is the property of an element to exist in two or more forms in the same physical state

Allotropes have several similar chemical  properties but differ in their physical properties, such as the white, pale yellow to totally colorless diamond and the gray graphite

Sulphur can exist in several allotropic forms, and carbon is the only element that has more allotropes than sulphur

The sulphur allotropes includes S₂, S₆, and S₅ have similar chemical properties but different physical properties.

The correct option is;

What can be said about these common forms of sulphur is that they have the same chemical properties

The answer is B) Group 8 .

Answer:

[H₂] = 0.0011M

Explanation:

Based on the chemical equation:

H₂(g) + I₂(g) ⇄ 2HI(g)

And Kc is defined as:

Kc = [HI]² / [H₂] [I₂]

Where Kc = 54

And [] represents equilibrium concentration of each compund.

Replacing:

54 = [0.030M]² / [H₂] [0.015]

[H₂] = [0.030M]² / 54* [0.015]

B change in temperature

Wind direction is reported by the direction from which it originates. For example, a north or northerly wind blows from the north to the south. Wind direction is usually reported in cardinal (or compass) direction, or in degrees.