I really need help. Can someone try to order it in the way it happens by putting it in order by letter.

Answer:

339.2K

Explanation:

Using Charles law equation;

V1/T1 = V2/T2

Where;

V1 = initial volume (L)

V2 = final volume (L)

T1 = initial temperature (K)

T2 = final temperature (K)

According to the information provided in this question,

V1 = 2.97 L

V2 = 3.42 L

T1 = 21.6°C = 21.6 + 273 = 294.6K

T2 = ?

Using V1/T1 = V2/T2

2.97/294.6 = 3.42/T2

Cross multiply

2.97 × T2 = 294.6 × 3.42

2.97T2 = 1007.532

T2 = 1007.532 ÷ 2.97

T2 = 339.236

The final temperature is 339.2K

Answer:

A

Explanation:

A sorry if not correct

Answer:

Rutherford overturned Thomson's model in 1911 with his well-known gold foil experiment, in which he demonstrated that the atom has a tiny, high- mass nucleus. In his experiment, Rutherford observed that many alpha particles were deflected at small angles while others were reflected back to the alpha source.

Answer:

CaCO₃ ------> CaO + CO₂

Note: The breakdown products of solid calcium carbonate is not carbon dioxide gas, oxygen gas, and solid calcium. Rather, it is calcium oxide and carbon dioxide as shown in the reaction equation above.

Explanation:

Calcium carbonate is a mineral which occurs in nature in rocks as calcite and limestone. It is also the main component of eggshells, snail shells, seashells and pearls. It has the molecular formula CaCO₃.

Calcium carbonate or limestone decomposes into calcium oxide and carbon dioxide when heated and the reaction is used to make quicklime and carbon dioxide gas. The equation of the reaction is given below:

CaCO₃ ------> CaO + CO₂

Calcium oxide, one of the products of The decomposition reaction is known as lime and is an important mineral used for many purposes such as reducing the acidity of soils, in the production of limelight, as well as serving as the main ingredient in cement.

The main use of calcium carbonate is in the construction industry as an ingredient of cement. Calcium carbonate is also an important mineral required by sea organisms for making their shells.

Answer:

Dunkin' Donuts

Purple

Charli began dancing at age 3, and was a trained competitive dancer for over 10 years prior to starting TikTok.

Explanation:

Answer:

pink

Explanation:

Answer:

500 ml is in a water bottle

Explanation:

Answer:

Newer

Explanation:

older fossils and rocks are found in lower strata than younger fossils and rock layers because the top layer fossils have not been there as long as the bottom layer fossils to be found deeper in the ground

Answer:

moving things

Explanation:

kinetic energy is the energy of moving things

Answer: Bacteria, some insects, and fungal species are the decomposers of the dead and decaying matter.

Explanation:

The decomposers are the organisms which act and feed on the dead and decaying organic matter so as to obtain energy from it and degrade it to the simple forms that can be utilized by the plants. Bacteria, some insects and fungi that live in the soil and on the decaying matter. The fungi for example decay on the lignin present in the wood so helps in wood decomposition of trees. If the decomposer like fungi are absent the wood mass will not decompose and it will remain as waste and can be used by the plants in the form of nutrients.

Answer: The answer is 18.01528.

Explanation:

Answer:

B. polar covalent

Explanation:

Answer:

44.6millilitres

Explanation:

Using the general gas law equation as follows:

P1V1/T1 = P2V2/T2

Where;

P1 = initial pressure (atm)

V1 = initial volume (L)

T1 = initial temperature (K)

P2 = final pressure (atm)

V2 = final volume (L)

T2 = final temperature (K)

According to this question;

V1 = 30mL

T1 = 273K (STP)

P1 = 1 atm (STP)

V2 = ?

T2 = 300K

P2 = 75.0 kPa = 75 × 0.00987 = 0.74atm

Using P1V1/T1 = P2V2/T2

1 × 30/273 = 0.74×V2/300

30/273 = 0.74V2/300

Cross multiply

300 × 30 = 273 × 0.74V2

9000 = 202.02V2

V2 = 9000/202.02

V2 = 44.55

V2 = 44.6millilitres.

Answer: im pretty sure it is b but a is also good  i going to be honest it a multi chose and i ant good at those

Explanation:

Answer:

Plant and animal cells differ in that plants have a large central vacuole, while animals have smaller vacuoles. Plant cells also have cell walls and plastids, while animal cells do not.

Answer:

B. Vacuole

Explanation:

The vacuole holds large amounts of water or food.

Answer:

cells comes from preexisting cells through the process of cell division

Answer:

A

Explanation:

Answer:

So, sodium's 11 electrons are arranged this way: 2 electrons in the first "shell", 8 electrons in the second "shell"; and 1 electron (the valence electron) in the third "shell".

Please don't flag!!!!

Hope this helps!!!

Have a great day!!!! :)

Answer:

yes

Explanation:

CO2 is soluble because water molecules are attracted to these polar areas. The bond between carbon

Answer:

All three populations would increase.

Explanation:

Answer:

C. is both an oxidizing and a reducing agent.

Explanation:

Answer:Static electricity can be created by rubbing one object against another object.

Explanation: This is because the rubbing releases negative charges, called electrons, which can build up on one object to produce a static charge

Answer:

Its name is Sodium Bromide .

Answer:

=>. the chemical Name of NaBr

=>. sodium bromide

hope it helps

Answer:

The relative mass of an electron would be -1.

Answer:

1. Molecular weight = 333.3 g/mol

2. Strenght = 2222.2 mg/L

Explanation:

First, we need to find molarity (M) from normality (N) as follows:

[tex] N = nM [/tex]      

Where n is the number of OH⁻ = 2

[tex] M = \frac{N}{2} = \frac{0.03}{2} = 0.015 mol/L [/tex]

Now, when the H₃X solution is neutralized with Ca(OH)₂ we have:

[tex]\eta_{H_{3}X} = \eta_{Ca(OH)_{2}} = M_{Ca(OH)_{2}}*V_{Ca(OH)_{2}} = 0.015*0.04 = 6 \cdot 10^{-4} moles[/tex]              

Hence, the molecular weight (MW) of H₃X is:    

[tex] MW = \frac{m_{H_{3}X}}{\eta_{H_{3}X}} = \frac{0.2 g}{6 \cdot 10^{-4} moles} = 333.3 g/mol [/tex]

Finally, we can calculate the strength (S) of this solution in ppm as follows:

[tex] S = \frac{m}{V} = \frac{200 mg}{0.050 L + 0.040 L} = 2222.2 mg/L [/tex]

I hope it helps you!

Answer:

You know, i always say no but when i watch one i get addicted so... yeah. thanks for the positive messages

Explanation:

Thank you so much for spreading a postive message.

I dont know who needs to here this and I don't know you but I know life is hard. I know that no one gets it. I know you may feel depressed or stressed or not know who you are. I know that school is really hard right now. I know that you may have suicidal thoughts. I know because I've been there and still am but im getting better everyday. Progress is Perfect. I am always here to talk about it or anything you need.