A 35.3 g of element M is reacted with nitrogen to produce 43.5 g of compound M3N2. What is (i) the molar mass of the element and (ii) name of the element?

Answer:

Because burning copper in air won't oxidize it you need to leave it in contact with air only

Explanation:

Answer:

C. inventory.

The answer is inventory.

Explanation:

Have a great day!! Brainliest will really help me since I have SO MANY POINTS and barely any crowns. Tysm, if you help! Hope this helps you!

The screenshots are below for question 44 of the Exam.

Answer:The oxygen molecules are more loaded and heavier which weighs down and the molecules and don't allow the same amount of moving ability as the hydrogen moles have.

Explanation:

First convert pressure to atm

Now

Apply Boyle's law

[tex]\\ \rm\Rrightarrow P1V1=P2V2[/tex]

[tex]\\ \rm\Rrightarrow 89(6.75)=0.09V2[/tex]

[tex]\\ \rm\Rrightarrow 600.75=0.09V2[/tex]

[tex]\\ \rm\Rrightarrow V2=\dfrac{600.75}{0.09}[/tex]

[tex]\\ \rm\Rrightarrow V2=6675L[/tex]

Microsoft was right in that IE was free

also having IE didn't prevent a person from using other browsers such as Netscape & Safari

Microsoft was forced to buy huge amounts of Apple shares took keep the government happy

Microsoft was wrong in that if you uninstalled IE it did lead to problems with Windows

Microsoft was wrong in that browser business plans had it so that people got to use browsers free but companies had to pay so if IE was free for companies too then yes Microsoft had an unfair advantage that they were already in a product that companies already used

when users bought stuff through the browser IE it was safer

The case between the federal government and Microsoft regarding its alleged monopoly and the integration of Microsoft Windows and Internet Explorer (IE) sparked a debate about whether the two products were inextricably linked or separate entities.

Microsoft argued that the merging of Windows and IE was a result of innovation and competition, claiming that they were now the same product. They stated that consumers were benefiting from having IE included with Windows at no extra cost. Opponents of Microsoft's position countered that IE was still a distinct and separate product that didn't need to be tied to the operating system. They pointed out that a separate version of IE was available for Apple's Mac OS.

In my opinion, I tend to agree more with Microsoft's argument. The integration of IE into Windows allowed for a more seamless browsing experience for users and promoted competition in the market. By bundling IE with Windows, Microsoft was able to offer additional value to consumers without requiring them to pay extra or download a separate browser. However, it is important to consider the potential impact on competition and innovation that could arise from such integration.

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Answer:

Wind, ocean currents, waves

Explanation:

The plastic bottle travelled this much distance due to the following factors:

a) Wind

b) Ocean currents

c) Waves

Answer:

wind energy

Explanation:

Energy resource that has the advantage of producing clean energy that is less harmful to the environment is Modern wind mills.

A windmill is a machine structure that helps to convert wind power into rotational energy using wings called sails or blades, by tradition specifically to mill grain, but the term has also been extended to encompass windpumps, wind turbines, and other applications, in some parts of the English-speaking world.

Wind is a form of solar energy caused by a combination of three concurrent events:

The sun unevenly heating the atmosphere

Irregularities of the earth's surface

The rotation of the earth.

Given, options for Energy resource that has the advantage of producing clean energy that is less harmful are-

-Coal being extracted from the ground.

-Modern wind mills.

-A man filling a car with gasoline

Therefore, Energy resource that has the advantage of producing clean energy that is less harmful to the environment is Modern wind mills.

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The number of mole of lithium, Li needed for the reaction is 3.2 moles (Option D)

4Li + N₂(g) → 2Li₂N

From the balanced equation above,

2 moles of Li₂N were obtained from 4 moles of Li

From the balanced equation above,

2 moles of Li₂N were obtained from 4 moles of Li

Therefore,

1.6 moles of Li₂N will be obtained from = (1.6 × 4) / 2 = 3.2 moles of Li

Thus, 3.2 moles of Li are needed for the reaction

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Answer:

[tex] \frac{ {a}^{2} }{ {b}^{2} \times c \times {e}^{7} } [/tex]

Hope it helps you.......

Answer:

52

Explanation:

Mass number is the sum total of protons and neutrons in an element

Therefore, Mass number = protons + neutrons

Mass number = 23 + 29

Mass number = 52

Answer:

C

Explanation:

Answer:

the atom structure in model A has more atoms and they are all the same type of atom while model B has less atoms and they are different types of atoms.

Explanation:

Answer:

I’m guessing that you mean 4.95x 10^22,

3074.31 moles

Explanation:

(4.95x10^22) grams x (1) mole (6.02x10^23) grams

You cancel you the grams and then you have solved it for moles

Answer:

a) What volume will it occupy with 2.60 moles?

V2 = V1 x n2 / n1

V2 = 3.80 x 2.60 / 1.70 = 5.81 L

Answer: V2 = 5.81 L

b) How many moles are in a sample that occupies 1.45 L?

n2 = n1 x V2 / V1 = 1.70 x 1.45 / 3.80 = 0.65 mol

Answer: n2 = 0.65 mol

Explanation:

The volume of the sample that has 2.60 moles and occupies is 5.81 l.

Volume is the space occupied by a three-dimensional object.

The moles of the sample m1 is 1.70

The volume V1 is 3.8 l  

The moles m2 is 2.60

V2 = ?

[tex]V2 = V1 \times \dfrac{n_2}{n_1} \\\\\\V2 = 3.80 \times \dfrac{2.60}{1.70} = 5.81 \;l[/tex]

Thus, the volume of the sample that has 2.60 moles and occupies is 5.81 l.

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Answer:

The formula of Tin (IV) Thiosulfate is Sn(S₂O₃)₂

-TheUnknownScientist 72

The mass of is K2CrO7 in the 250 ml of solution is mathematically given as

x=1.25mg of K2CrO7.

Hence, 250 ml of the solution will contain 1.25mg of K2CrO7

Question Parameters:

The total of potassium dichromate are there in a 250 mL bottle filled with 5 ppm solution

Generally the mass of k2CrO7  is mathematically given as

[tex]x=\frac{5mg of k2CrO7  *250ml of solution}{1000ml of solution}[/tex]

x=1.25mg of K2CrO7

Therefore,

250 ml of the solution will contain 1.25mg of K2CrO7

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With the earth's atmosphere at approximately 78% nitrogen and 21% oxygen, we have that the mass in grams of oxygen is mathematically given as

Mass of O2=2.74.7g

Question Parameters:

Earth's atmosphere is approximately 78% nitrogen and 21% oxygen.

Generally, the equation for the ideal gas  is mathematically given as

PV=nRT

Therefore

n=PV/RT

n=1*1000L/0,0821*298k

n=40.87mol

In conclusion

Where mole of O is 8.58

Therefore

Mass of O2=8.58*32

Mass of O2=2.74.7g

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Answer: 275 grams

Explanation:

The statement Venus has an average surface temperature higher than that of Mercury is true, because of the presence of the high amount of carbon dioxide.

Every body has outer surface and inner surface, so if we talk about the temperature of outer surface then we will use the word surface temperature.

As we know that carbon dioxide is a green house gas, it means this gas increase the temperature by trapping the heat content. In the Venus atmosphere high amount of carbon dioxide is present and this atmosphere traps the heat coming from the sun and have a higher surface temperature as compare to Mercury. Because in Mercury atmosphere is absent.

Hence, given statement is true.

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Answer:

i hope the answer is 12.0

Answer:

Strong winds that blow for a long time over a great distance.

Explanation:

Generally, the biggest and most powerful wind-generated waves are produced by strong storms that blow for a sustained period over a large area. Huge and big waves, or swells, can travel over long distances. The size of the wave depends on wind speed, wind duration, and the area over which the wind is blowing. If The speed of the wind is more, it stays for along time and it covers a larger distance then the waves produced will be very powerful and large.

Explanation:

I hope you benefit from this

This is the correct coefficient...

Taking into account the definition of dilution, the initial volume of the 1 M HNO₃ solution is 25 mL.

When it is desired to prepare a less concentrated solution from a more concentrated one, it is called dilution.

Dilution is the process of reducing the concentration of solute in solution, which is accomplished by simply adding more solvent to the solution at the same amount of solute.

In a dilution the amount of solute does not change, but as more solvent is added, the concentration of the solute decreases, as the volume (and weight) of the solution increases.

A dilution is mathematically expressed as:

Ci×Vi = Cf×Vf

where

Assuming that you want to know the volume of HNO₃ required to produce the dilution, you know:

Replacing in the definition of dilution:

1 M× Vi= 0.250 M× 100 mL

Solving:

Vi= (0.250 M× 100 mL)÷ 1 M

Vi= 25 mL

In summary, the initial volume of the 1 M HNO₃ solution is 25 mL.

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Iodized salt contains potassium iodate, potassium iodide, sodium iodate, and sodium iodide.

Salt is a very important ingredient used in cooking across the world. Salt is commonly obtained from sea water. Salt can also be manufactured artificially. Large deposits of salts occur in some parts of the world.

The ingredients that are contained in iodized salt include; potassium iodate, potassium iodide, sodium iodate, and sodium iodide. The species that contain iodine supply the iodine required by the thyroid gland.

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Answer:

The early 2000s had an astronomical rise in wind energy. The largest rise, by far, was between 2000 and 2010, but it also increased by 51% in just three years between 2010 and 2013. Beyond 2020, wind energy is still expected to steadily increase, but not at the astronomical rate of the early 2000s.

Explanation:

Answer:

Wind energy witnessed a meteoric surge in the early 2000s. By far the most significant increase occurred between 2000 and 2010, but it also climbed by 51% in just three years from 2010 and 2013. Wind energy is predicted to continue to grow through 2020, although not at the same astronomical rate as in the early 2000s.

Explanation:

plato (not example answer)

dont trow it away

Explanation:

if you dont want it for later give it to someone

1.

• Reduce your food waste

According to the U.S. Environmental Protection Agency (EPA), the largest component of municipal solid waste sent to landfills is food. Therefore, the most effective way to reduce your household waste is to reduce and divert food scraps! Get some tips on reducing food waste that can save you money. Planning is key; make sure to shop with a list, take inventory of your fridge, use your leftovers, and store food properly. Additionally, certain food scraps are edible! Click here to learn more about cooking with food scraps.

After making efforts to reduce food waste, any residual food scraps can be diverted in several ways! You can feed food scraps to animals like chickens (although we discourage feeding food scraps to pigs), start a compost pile in your backyard, compost indoors with a worm bin, contact your trash and recycling hauler about curbside food scrap collection, or bring food scraps to your town’s drop-off. Additionally, we accept food scraps from residents for free at the District Transfer Station. Call us at 388-2333 for more info on the disposal of food scraps.

• Paper or plastic? Neither!

Use reusable bags instead for all of your shopping needs. Don’t just limit this to grocery shopping—bring reusable bags when shopping for clothes, books, household goods, etc. You can also use reusable produce bags to purchase loose food items (such as fruits and veggies) from the grocery store.

If you find yourself forgetting your bags at home, try storing bags in your car. Or, purchase folding reusable bags and keep them in your purse, on your keychain, or in your pocket at all times. For a more extreme solution, you can force yourself to return home for your bags if you catch yourself forgetting, or make yourself carry your purchases out of the store without a bag. Chances are, you will remember this unpleasant experience and be significantly less likely to forget your bags next time!

• Say no to bottled water

Instead, carry a reusable water bottle. It is a myth that bottled water is healthier than tap water—although both tap and bottled water are federally regulated in the U.S., tap water has stricter quality and health standards than bottled water. Benefit the environment, your health, and your finances by embracing the tap and going reusable!

#2

 Simple Things You Can Do to Help Protect the Earth

• Reduce, reuse, and recycle. Cut down on what you throw away. Follow the three "R's" to conserve natural resources and landfill space.

• Volunteer. Volunteer for cleanups in your community. You can get involved in protecting your watershed, too.

• Educate. When you further your own education, you can help others understand the importance and value of our natural resources.

• Conserve water. The less water you use, the less runoff and wastewater that eventually end up in the ocean.

Answer:

C- THE LENGTH OF TIME REQUIRED FOR HALF OF A SAMPLE OF RADIOACTIVE MATERIAL TO DECAY

Answer:

Nitrogen

Explanation:

The Kjeldahl method (the test for routinely determining the crude protein content of foods) determines a food's total nitrogen content, which is then used to estimate the crude protein content using a conversion factor.

I hope this helps you

:)

Answer: im pretty sure its Nitrogen!

hopes this helps ya out! have a day full of killing demons and slaying the dark lord..lol

Answer:

48 moles of water

Explanation:

2C2H6 + 7O2 --> 4CO2 + 6H2O

We want to find the number of moles of water produced if 16 moles of ethane (C2H6) are burned.

We can use dimensional analysis to find the answer.

Needed conversions: We need the mole ratio of ethane to water in the chemical equation which would be 2 to 6. So for every 2 moles of ethane that are burned 6 moles of water is produced.

Using this ratio we can create a table:

[tex]\frac{16mol(C_2H_6)}{} *\frac{6mol(H_2O)}{2mol(C_2H_6)}[/tex]

the mol (C2H6) cancel out and we get

[tex]\frac{16}{} *\frac{6}{2mol(C_2H_6)}[/tex]

we then multiply

16 * 6/2molC2H6 = 48molH2O

So if 16 moles of ethane is burned 48 moles of water is produced

Answer:

The container should be perfectly conducting to the surroundings. ii) The process must be carried out very slowly so that there is sufficient time for exchange of heat with the surroundings so that temperature remains constant.

The conditions essential for an isothermal process to occur is:

This is further explained below.

Generally, An isothermal process is simply defined as a sort of thermodynamic process where a system's temperature T remains constant.

In conclusion, The equation for the isothermal process is

dT=0

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