A compound is determined to have the empirical formula C2OH4. If the molar mass of the compound is 132 g/mol, determine the molecular formula of the compound.

Answer:

1.45 kg

Explanation:

common sense ok

Answer:

1450 grams are in 1.45 kilograms

Answer:

Matter is any substance, if it is made up of only one kind of atom, then it is an element. Elements consists of atoms with the same weight and same number of protons in the nuclei.

Because it completely dissociates into hydroxide ions when placed in water, sodium hydroxide (NaOH) is a strong basic.

While producing less hydroxide ions in solution by accepting protons from water, ammonia (NH3) is a weak base.

The inorganic substances sodium hydroxide and ammonium hydroxide are distinct from one another. Sodium hydroxide is a metal hydroxide with the chemical formula NaOH, whereas ammonium hydroxide is a liquid with the chemical formula NH4OH.

Because it entirely dissociates into sodium cation and hydroxide anion in aqueous solution, sodium hydroxide is a strong basic. One mole of sodium hydroxide will thus include one mole of salt composed and one mole of hydroxide anion as one formula unit of sodium hydroxide comprises one salt cation and one hydroxide anion.

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Scammers often attempt to obtain personal information such as social security numbers, bank account details, or passwords, under the guise of legitimate organizations. scammers often make enticing promises that are unrealistic or too good to be true. These promises may include guaranteed high returns on investments, lottery winnings, or extravagant rewards for minimal effort.

The two major signs of a scam are a request for personal information and promises that seem too good to be true. Scammers often attempt to obtain personal information such as social security numbers, bank account details, or passwords, under the guise of legitimate organizations. They may use tactics like phishing emails, fake websites, or phone calls to deceive individuals into revealing sensitive information. It's important to remember that reputable organizations typically do not ask for personal information via unsolicited communication. Additionally, scammers often make enticing promises that are unrealistic or too good to be true. These promises may include guaranteed high returns on investments, lottery winnings, or extravagant rewards for minimal effort. Such offers are designed to lure unsuspecting individuals into providing money or personal information. Being cautious and skeptical, avoiding sharing personal information without verifying the legitimacy of the request, and conducting thorough research can help protect against falling victim to scams.

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The correct option is D. A gas is released and a black solid forms.

Carbon, hydrogen, and oxygen atoms make up sugar. When heated over a candle, these materials react with the fire and turn into liquids. Heat causes the sugar's atoms to interact with the oxygen in the air, forming new atomic groups. Energy is released during this chemical reaction in the form of smoke and black soot.

The main functions of sugars include their ability to sweeten things, maintain and intensify flavours, act as antioxidants and preservatives, and interact with water to change how it behaves. Fermentation, caramelization, Maillard reactions, or the creation of browning compounds, are examples of chemical processes.

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Question:

During a science class investigation, a teacher places a small amount of sugar in a beaker and then heats it over a candle. Which of the following would be the best evidence that a change in the chemical properties of the sugar has taken place?

A. The sugar changes color.

B. The sugar dissolves in the water.

C. The sugar melts and turns into a liquid.

D. A gas is released and a black solid forms.

Less chemical waste is generated because there are no solvents to remove. The reaction often costs less because solvents can be expensive.

The reaction rate is greater because the concentration of reagents is greater. These options are correct.

A solvent is a substance that dissolves a solute, producing a solution. In addition to being a liquid, a supercritical fluid, a solid, or a gas can also be solvent. All the ions and proteins in a cell are dissolved in water, which is a solvent for polar molecules and the most frequent solvent employed by living things.

chemical reaction, the transformation of one or more chemicals (the reactants) into one or more distinct compounds (the products). Chemical elements or chemical compounds make up substances. In a chemical reaction, the atoms that make up the reactants are rearranged to produce various products.

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Answer:

true they do I yes they do

Answer:

Nitrogen

Explanation:

Pieces of copper, silver and gold are dropped into a solution of iron sulphate. The piece that will get a coating of copper is. ... Therefore, none of the three metals can displace iron from its salt solution. Hence, we observe that no reaction takes place and none of the pieces get coated.

Answer:

If it were a piece of iron dropped into a copper sulfate solution, precipitated copper would coat the iron

Heat energy is formed.

Law of Conservation of Energy, states that energy can neither be created nor destroyed; energy can only be transferred or changed from one form to another.

Describe conversion of light energy to heat energy.

According to above question, light is a form of energy ,therefore can be converted to electricity with the help of solar cell , that electricity can be used to drive a mechanical motor or engine. Thus, it can be converted to form heat energy.

Another example of light energy converting into heat energy is when sunlight hits an object, it can be reflected or absorbed. If it is reflected it bounces off at the same wavelength. But if it is absorbed, the short wavelength energy is changed to long wavelength (heat).

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The grams of magnesium hydroxide will precipitate if the 25 mL of 0.235 M magnesium nitrate are combined with the 30. 0 mL of 0.260 M potassium hydroxide is 0.227 g.

The reaction is given as :

Mg(NO₃)₂   +   2KOH  ---->  2KNO₃(aq)  +  Mg(OH)₂(s)

moles of Mg(NO₃)₂   = 0.235 × 0.025

                                  = 0.00587 mol

moles of KOH = 0.260 × 0.030

                        =  0.0078 mol

1 mole of Mg(NO₃)₂   react with 2 mole of KOH

mole of KOH = 0.0078 × 2

                      = 0.0156 mol

KOH is the limiting reagent.

2 mole of KOH  produces 1 mole of Mg(OH)₂

mole of Mg(OH)₂ =  0.0078 / 2 = 0.0039 mol

mass of Mg(OH)₂ = 0.0039 × 58.3

                             = 0.227 g

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Answer:

V₂ = V₁ / T₁ * T₂ . If you prefer to set the final volume and want to estimate the resulting temperature, then the equation of Charles' law changes to: T2=T1/T1 multiplied by v^2.

Answer:

A. lytic cycle is the correct answer

Answer:

B. reflection

Explanation:

Rigid transformations are methods involved in changing the dimensions or orientation of a given figure. The methods are; dilation, rotation, translation and reflection.

Reflection is the process in which a given figure is turned or flipped with respect to a point or line of reference.

In the given question,

ΔDEF ≅ ΔD'EF' (Side-Side-Side congruence property)

This implies that ΔDEF was reflected about point E to produce ΔD'EF'. Thus the required rigid transformation is reflection.

Answer:

Is C - Rotation

Explanation:

I have right on my test

The maximum number of orbitals that can be identified with the given quantum numbers is 2.

The quantum number n=3 indicates that the shell or energy level of the atom is the third level. The quantum number l=+1 (or l=1) indicates that the subshell is p-type. The quantum number ml=0 indicates that the orientation of the orbital is along the z-axis. For a p-type subshell, there are three possible orientations: ml=-1, 0, and +1. Therefore, there are three orbitals possible for the given quantum numbers.

However, the quantum number ml=0 specifies only one of these three orbitals, leaving two possible orbitals for the other two values of ml. Hence, the maximum number of orbitals that can be identified with the given quantum numbers is 2. Therefore, the correct answer is b. 2.

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The mass of the oxygen that would be produced would be 1.84 g

Stoichiometry calculations involve converting between mass, moles, and other units of substances using molar masses and stoichiometric ratios.

We know that;

Number of moles of nitrogen dioxide = 10.5 g/46 g/mol

= 0.23 moles

Now we have that;

4 moles of nitrogen dioxide is produced when 1 mole of oxygen is produced

0.23 moles of nitrogen dioxide would produce 0.23 * 1/4

= 0.0575 moles

Mass of the oxygen = 0.0575 moles * 32 g/mol

= 1.84 g

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The radiant energy that is absorbed by the plant in the process of photosynthesis is stored in the plant in the form of chemical energy contained in sugars.

The term photosynthesis has to do with the process by which there is a combination of water and carbon dioxide in the plant such that the products that are formed are sugar and oxygen. The oxygen is released back into the environment.

We know that radiant energy from the sun is what acts as the catalyst that makes the reaction possible. The combination occurs in the chloroplasts of the plant cells .

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9-fluorenone will get strongly bonded to the stationary phase.

9-fluorenone is comparatively more polar than fluorene because it contain a carbonyl group. We know that the stationary phase is alumina and alumina is a polar adsorbent. Alumina is a best choice for the separation of components that contain a weakly or moderately polar component.  This kind of polar components of the mixture are retained for a longer time and more selectively by the adsorbent.

The fluorene is eluted first with the methane, this elution makes it easier to elute the 9-fluorenone with the dichloromethane. The 9-fluorenone will undergo slow elution because it is more strongly attracted to the alumina owing to its polar carbonyl group.

Fluorene moves faster because it's polarity is the same as methane and also opposite of the alumina. If the order of solvents is reversed and dichloromethane is used first, than the 9-fluorenone binds more strongly to the alumina making it difficult to elute fluorene using methane.

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Answer:

The molar volume of a gas expresses the volume occupied by 1 mole of that respective gas under certain temperature and pressure conditions.

scientists use molar volume to measure gas because it it tells us about volume occupied by gas.

Molar volume

Answer:

The vacuum of outer space has essentially zero air. Because sound is just vibrating air, space has no air to vibrate and therefore no sound.

Explanation:

The vacuum of outer space has essentially zero air. Because sound is just vibrating air, space has no air to vibrate and therefore no sound.

Answer:

There is no air in space for sound waves to travel

Copper ions would increase the activation energy. So the correct option is C.

The least amount of energy necessary to bring atoms or molecules into a state where they may cause chemical modification or physical transport is known as the activation energy in chemistry.

The differential in total energy between atoms or molecules in an energized or transition-state structure and the same atoms and molecules in their original configuration is known as the activation energy in transition-state theory.

Experimental rate constants or distribution coefficients that are measured at various temperatures are used to calculate activation energies.

Therefore the correct option is C.

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Answer:

Daffodils are the most carefree of all spring flowers. ... Daffodil flowers come in many different shapes, sizes, and color combinations. The American Daffodil Society classifies daffodils by their flower shape, and there are officially 13 different classifications.

Explanation:

the small one: they grow from fall-planted bulbs and bloom in spring. The size of a dwarf daffodil depends on the variety, but generally, they grow 4 to 6 inches (10 to 15 cm.)

and i can't find the medium size, sorry

hope it helps

Answer:

qwe

Explanation:

wqe

Metallic elements exist in a solid-state and they are opaque, have a shiny surface, good conductors of electricity and heat, malleable and ductile, and are dense. The structure of metals is formed by atoms that are held together by metallic bonds. These atoms have loosely bound valence electrons that can be shared between the neighboring atoms.

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Answer:

- 143.6 g of N₂ ; 3.08×10²⁴ molecules of N₂

- 451.4 g of CO₂ ; 6.17×10²⁴ molecules of CO₂

- 153.9 g of H₂O ; 5.14×10²⁴ molecules of H₂O

- 27.3 g of O₂ ; 5.14×10²³ molecules of O₂

Explanation:

This is a reaction of decomposition:

4C₃H₅N₃O₉(s)  →  6N₂(g)  +  12CO₂(g)  +  10H₂O(g)  +  O₂(g)

4 moles of solid nitroglycerine decompose to 6 moles of nitrogen, 12 moles of carbon dioxide, 10 moles of water vapor and 1 mol of oxygen

We convert mass to moles → 777 g. 1mol/ 227g = 3.42 moles

4 moles of C₃H₅N₃O₉ can decompose to:

6 moles of N₂ ____  12 moles of CO₂ ___ 10 moles of H₂O ___ 1 mol of O₂

Then, 3.42 moles of C₃H₅N₃O₉ may decompose to:

(3.42 . 6) / 4  =  5.13 moles of N₂

(3.42 . 12) / 4 = 10.26 moles of CO₂

(3.42 . 10) / 4 = 8.55 moles of water vapor

(3.42 . 1) / 4 = 0.855 moles of oxygen

We convert the moles to mass:

5.13 mol . 28 g/mol = 143.6 g of N₂

10.26 mol . 44 g/mol = 451.4 g of CO₂

8.55 mol . 18 g/mol = 153.9 g of H₂O

0.855 mol . 28 g/mol = 27.3 g of O₂

We count the atoms:

5.13 mol . 6.02×10²³ molecules /mol = 3.08×10²⁴ molecules of N₂

10.26 mol . 6.02×10²³ molecules /mol = 6.17×10²⁴ molecules of CO₂

8.55 mol . 6.02×10²³ molecules /mol = 5.14×10²⁴ molecules of H₂O

0.855 mol . 6.02×10²³ molecules /mol = 5.14×10²³ molecules of O₂

I will say 3 is wrong because the time of day doesn't matter.But what really matters is 1,2,4 we just need to figure which one is correct.

1.The Wife's blood

Real blood will smell bad and with the time it will turn the color red to a dark-ish color red with brown.To see if it is real you have to see if the blood is a dark brown with red if it's not then it's a fake.

2.The type of Gun

You have to feel if it's a fake it might be plastic or another toy material.The gun has to feel like metal.

So the answer might be 1 or 2

Hope this helps :)

The reaction with S_N₂mechanism is likely to be faster than the reaction with S_N₂ mechanism. This is because the carbocation intermediate formed in S_N₁ mechanism is more stable.

The pair of reactions given below is:

CH₃Cl + NaOH→CH₃OH + NaCl

CH₃I + NaOH→CH₃OH + NaI

The type of substitution mechanism:

The first reaction involves S_N₁ mechanism (unimolecular nucleophilic substitution). The second reaction involves S_N₂ mechanism (bimolecular nucleophilic substitution).

Prediction of the reaction that will occur at a faster rate:

The reaction with S_N₁ mechanism is likely to be faster. The rate of this reaction mainly depends on the stability of the carbocation intermediate formed after the initial step. In this case,CH₃Cl reacts to form a tertiary carbocation which is more stable than the primary carbocation formed in CH₃I.

Drawing the correct organic product:

CH₃Cl + NaOH→CH₃OH + NaCl

CH₃I + NaOH→CH_3OH + NaI

CH₃C reacts with NaOHin an S_N₁ mechanism to produceCH₃OH and NaCl.


CH₃ reacts withNaOH in an S_N₂mechanism to produce CH₃OH and NaCI.


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