How many grams of sodium hydroxide are needed to completely react with 50.0 grams of H2SO4?

Answer:

there are 2 atoms in an ethane with 6 atoms of hydrogen to form an ethane sorry I can't give u the exact answer but I hopetbjs helps!!

Explanation:

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Answer:

8.33mL or .0083L

Explanation:

Use m1 * V1 = m2 * V2

6.00M(x) = 0.100M(500mL)

solve for x

x= (.1 * 500) / 6

x=8.333 mL

Using the periodic table, THE molecule that has a stable configuration that satisfies the octet rule for all atoms is option B: MgO

MgO (Magnesium Oxide) and (Magnesium Oxide) establish an ionic bond thanks to the electrostatic attraction that develops between them. A MgO molecule contains two atoms with stable octet arrangements.

Note that when we study the octet rule of the MGO Lewis structure. The octet rule is satisfied by the oxygen atoms and magnesium in the MgO Lewis structure. Since oxygen only requires two electrons, the condition transfers two electrons. Oxygen receives these two electrons from magnesium, a metal having two electrons in its valence shell.

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Answer: As a consequence, chemical equations must be balanced, meaning that the number and kinds of atoms must be the same on both sides of the reaction arrow. The numbers placed in front of formulas to balance equations are called coefficients, and they multiply all the atoms in a formula.

Answer:

Initial molarity of stock solution, M1 = 67.8um

Explanation:

I hope this helps!

0.072moles water produced by the reaction of 0.10mol of oxygen.  In reality, it's one of the International System of Units' seven foundation units (SI).

A mole is just a measuring scale. In reality, it's one of the International System of Units' seven foundation units (SI). When already-existing units are insufficient, new ones are created.

The levels at which chemical reactions frequently occur exclude the use of grams, yet utilizing actual numbers of atoms, molecules, or ions would also be unclear. To fill this gap between extremely small and extremely huge numbers, scientists created the mole.

2C\(_8\) H\(_{18}\)+ 25O\(_2\)→ 16CO\(_2\) + 18H\(_2\)O + Heat Energy

0.10mol =oxygen

the mole ratio between oxygen and water is 25:18

moles of water =( 18/25)×0.10=0.072moles

Therefore, 0.072moles water produced by the reaction of 0.10mol of oxygen.

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Rough ER is connected to the nuclear membrane and is responsible for the synthesis and processing of proteins.

The rough endoplasmic reticulum (ER) is a network of membrane-bound sacs and tubules that is studded with ribosomes on its surface. These ribosomes are responsible for protein synthesis. The rough ER is connected to the nuclear membrane because it receives instructions for protein synthesis from the DNA in the nucleus. This connection allows for the efficient transfer of genetic information from the nucleus to the rough ER.

Once the ribosomes on the rough ER synthesize proteins, the rough ER is also involved in the processing and modification of these proteins. It helps in folding the newly synthesized proteins into their functional three-dimensional shapes and also adds various modifications such as glycosylation (the addition of sugar molecules) or signal sequences that target the proteins to specific locations within or outside the cell.

After processing, the proteins may be transported to other parts of the cell or exported to the cell membrane or extracellular space. The connection between the rough ER and the nuclear membrane ensures a coordinated flow of genetic information and protein synthesis, allowing the cell to efficiently carry out its functions.

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Answer:

True

Explanation:

Because in outer space there is some plants that don't have an atmosphere but earth dose that is why the whether changes cold to hot it like humans breathing in oxygen and blowing it out.

Types of luminous flames:

1. Yellow Luminous Flame

2. Smoky Luminous Flame

3. Orange Luminous Flame

4. Blue Luminous Flame

Luminous flames are characterized by their visible glow, which is caused by the incomplete combustion of fuel. The presence of soot particles in the flame causes the emission of light. There are different types of luminous flames, which can be classified based on their fuel composition and burning conditions. Here are some common types of luminous flames:

1. Yellow Luminous Flame: This is the most common type of luminous flame, often seen in open fires, candles, and gas stoves. It appears yellow due to the presence of soot particles in the flame. Yellow flames indicate incomplete combustion of hydrocarbon fuels, such as methane, propane, or natural gas. The high carbon content in these fuels leads to the formation of soot, which emits visible light.

2. Smoky Luminous Flame: This type of flame is characterized by a significant amount of black smoke and soot production. It is commonly observed in poorly adjusted or malfunctioning burners or engines. The excessive presence of unburned fuel in the flame results in incomplete combustion and the emission of dark smoke particles.

3. Orange Luminous Flame: An orange flame indicates a higher combustion temperature compared to a yellow flame. It is often seen in more efficient burners or when burning fuels with a higher carbon content, such as oil or diesel. The higher temperature helps in burning more of the carbon particles, reducing the amount of soot and making the flame appear less yellow.

4. Blue Luminous Flame: A blue flame is typically associated with complete combustion. It indicates efficient burning of fuel, resulting in minimal soot formation. Blue flames are commonly observed in gas burners or Bunsen burners. The blue color is a result of the combustion of gases, such as methane, in the presence of sufficient oxygen.

It's important to note that the luminosity of a flame can vary depending on factors such as fuel-air mixture, combustion temperature, and the presence of impurities. Achieving complete combustion and minimizing the production of soot is desirable for efficient and cleaner burning processes.

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Answer:

225 for both answers

Explanation:

The only reason i know this is because i got it wrong. 225

Answer:

225J on both of the questions.

The given chemical equation, 2N₂ + 3H₂ <==>2NH3, is an example of a reversible reaction.option A.

The double arrows between the reactants and products indicate that the reaction can proceed in both directions, forming both products and reactants.The reversible reaction, also known as a chemical equilibrium reaction, refers to a chemical reaction that can occur in both forward and reverse directions. It occurs when reactants are converted into products, and the products are also converted back into the original reactants.A reversible reaction can be identified by the symbol “<==>” or “⇌” that appears between the reactants and products in the chemical equation. It denotes that the reaction is in a state of chemical equilibrium. When the reactants and products have achieved equilibrium, the rate of the forward and reverse reactions is equal, and there is no further net change in the amounts of the reactants and products.A combustion reaction is a type of exothermic reaction in which a substance reacts with an oxidizing agent to produce heat and light. A one-way reaction is a type of reaction that occurs in only one direction and cannot be reversed without significant changes to the reaction conditions, such as changing the temperature or pressure.A reversible reaction, unlike a one-way reaction, can occur in both directions and reach equilibrium when the forward and reverse reaction rates are equal.option A.

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The word "symptom" refers to a specific manifestation or indication of a condition, disease, or disorder that is experienced or observed by an individual.

Symptoms are subjective or objective changes in the body's normal functioning that may be recognized as abnormal, uncomfortable, or problematic. Symptoms can manifest in various ways depending on the nature of the underlying condition. They can be physical, such as pain, rash, cough, fever, or fatigue, indicating an illness or injury affecting the body. Symptoms can also be psychological, such as anxiety, depression, or confusion, reflecting disturbances in mental health.

Symptoms serve as important clues for medical professionals to identify and diagnose diseases or disorders. They provide valuable information about the nature, severity, and progression of an illness, helping healthcare providers formulate appropriate treatment plans. Additionally, symptoms may also be important for individuals to self-assess their own health status and seek appropriate medical attention.

It is essential to note that symptoms alone may not provide a definitive diagnosis, as they can overlap across different conditions. Further evaluation, including medical tests and examinations, is often necessary to confirm a diagnosis and determine the appropriate course of action.

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Answer:

I don't know ❤️

The number of liters of oxygen, O₂, required at STP to react with 11.2 liters of CH₄ to form only CO₂ and H₂O is 22.4 liters.

The number of liters of O₂ required at STP to react with 11.2 liters of CH₄ to form only CO₂ and H₂O is determined from the balanced equation of the reaction as follows:

The balanced equation of the reaction of O₂ at STP CH₄ to form only CO₂ and H₂O is given below:

CH₄ + 2 O₂ (g) ----> CO₂ (g) + 2 H₂O (g)

From the balanced equation of the reaction of O₂ at STP CH₄, 2 moles of  O₂ reacts with one mole of CH₄.

At STP, the volume of one mole of CH₄ is equal to 22.4 liters

The number of mole of CH₄ in 11.2 liters of CH₄ will be 11.2 / 22.4 = 0.5 moles

The moles of oxygen required will be 0.5 liters * 2 /1 = 1 mole of oxygen.

At STP, the volume of one mole of O₂ is equal to 22.4 liters.

Hence, 22.4 liters of oxygen are required.

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Among electromagnetic waves, UV rays are most dangerous because exposure to these radiation cause serious problems in living organism. Therefore, 4.28×10⁻¹⁹J is the energy of a photon that emits a light frequency of  6.67×10⁻³⁴ Hz.

Electromagnetic wave is a wave which contain two component one is electric component and other is magnetic component. The electric and magnetic component are perpendicular to each other. There are so many wave that comes under electromagnetic wave like infrared wave , radio wave.

There is a relation between energy of wave. frequency of wave, and wavelength of wave

Mathematically,

E=h×ν

where,

E = energy of electromagnetic wave =?

h is planks constant having value 6.67×10⁻³⁴js

ν= frequency of photon=6.42X10¹⁴ Hz

Substituting all the given values in the above equation, we get

E= 6.67×10⁻³⁴×6.42X10¹⁴

E=4.28×10⁻¹⁹J

Therefore, 4.28×10⁻¹⁹J is the energy of a photon that emits a light frequency of  6.67×10⁻³⁴ Hz.

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Answer:

0.1443194637888042 moles

Explanation:

Hope This Helps

Have A Great Day

~Zero~

Answer:

An atom contains three basic particles namely protons, neutrons and electrons. The nucleus of the atom contains protons and neutrons where protons are positively charged and neutrons are neutral. The electrons are located at the outermost regions called the electron shell.

Answer:

Rise in charge reduced the size due to rise in attraction between electron and nucleus.

Explanation:

Ion of magnesium is smaller than the atom of magnesium. As the nuclear charge increases, the attraction of electron to the nucleus increases in charged ions form of any element. Due to this increase in charge of magnesium ion,  the size of ion reduces

No. of electrons in Mg = 12

No. of proton in Mg = 12

Where as

No. of electrons in Mg2+ = 12

No. of proton in Mg2+ = 10

Answer:

b. gelatin

Explanation:

a homogeneous noncrystalline consisting of large molecules or ultramicroscopic particles of one substance.

Answer:

they are:-

venturi meter.

orfice plate.

Dall tube .

pitot tube.

Averaging pitot tube .

cone meter.

linear resis meter.

Answer:

C2H60 & X2H60

Explanation:

Divide by the molar mass

Moles C= 53.13 g/ 12.011 g/mol =4.34

Moles H= 13.5 g/ 1.008 g/ mol= 13.4

Moles O= 34.72 g/ 15.999 g/ mol=2.170

Divide by the smallest

4.34 /2.17 =2 => C

13.4 / 2.17= 6=>H

2.170 / 2.17= 1=>O

The empirical formula is C2H60 (molar mass =46.08 g/mol)

X2H60 is also the molecular formula

To solve this question, we have to convert the grams of glucose to moles using its molecular weigth and convert the grams of water to kilograms of water using a conversion factor:

Now, divide the number of moles of glucose by the number of kg of water to find the molality of the solution:

Answer:

Plastics!!!!!

Explanation:

How do you print stone or honey or wood you melt plastic or filiment to print stuff

Answer:

Explanation:

It's simple train track method of cancelling out units.

If we read the balanced equation as this: 2 dm3 of octane reacts to form 16 dm3 of CO2 then how much CO2 is produced by 1 dm3?

Would you agree that it would be half of 16?

\(\frac{2dm3}{16 CO2} = \frac{1dm3}{?CO2}\)

Cross multiply and solve for ?, you get 8.

Boyle's Law-

\(\:\:\:\:\:\:\:\:\:\:\:\star\:\sf \underline{ P_1 \: V_1=P_2 \: V_2}\\\)

(Pressure is inversely proportional to the volume)

Where-

As per question, we are given that -

Now that we have all the required values and we are asked to find out volume which will be occupied if the pressure is adjusted to 80 KPa and the temperature remains unchanged. For that we can put the values and solve for the final volume of helium-

\(\:\:\:\:\:\:\:\:\:\:\:\star\:\sf \underline{ P_1 \: V_1=P_2 \: V_2}\)

\( \:\:\:\:\:\:\longrightarrow \sf 100 \times 160 = 80 \times V_2\\\)

\( \:\:\:\:\:\:\longrightarrow \sf V_2 = \dfrac{100 \times 160}{80}\\\)

\( \:\:\:\:\:\:\longrightarrow \sf V_2 =100\times \cancel{\dfrac{ 160}{80}}\\\)

\( \:\:\:\:\:\:\longrightarrow \sf V_2 = 100 \times 2\\\)

\( \:\:\:\:\:\:\longrightarrow \sf \underline{V_2 = 200 \:cm^3 }\\\)

Lewis structures are useful for visualizing both ionic and covalent bonds. In the idealized ionic bond.

In covalent bonding, nonmetallic elements part electrons so that both elements can have a full valence shell. Covalent bonds can be meant with electron dot formulas. These are often mentioned as Lewis structures and are a little different than the electron dot formulas used to constitute ionic bonds.

Lewis one atom gives up an electron to the other, forming positive and negative ions. The state for bonds is that the total structure charge is zero and that each atom must have a gentle gas electron configuration. In covalent combination, the Lewis Dot Structures must show

So we can conclude that Using Lewis structure Symbols to relate Covalent Bonding.

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Answer:

When electrons move to a lower energy level.

Explanation: