how did this molecule form? a positively charged molecule. this molecule consists of three hydrogen atoms bonded to an oxygen atom. how did this molecule form? a positively charged molecule. this molecule consists of three hydrogen atoms bonded to an oxygen atom. a hydrogen molecule bonded with an oh- molecule. a water molecule split in half. a water molecule gained an hydrogen ion from another water molecule. two water molecules bonded. evaporation.

The glyceryl trioleate (triolein) acid hydrolysis equation calls for the interaction of the triglyceride with an acid, often a powerful acid like hydrochloric acid (HCl).

The triglyceride is converted into its component fatty acids and glycerol during this process. For triolein, a particular triglyceride made up of three oleic acid molecules esterified to a glycerol molecule, the equation is as follows:

C₅₇H₁₀₄O₆ + 3H₂O + 3HCl → 3C₁₇H₃₃COOH + C₃H₈O₃

In this equation:

C₅₇H₁₀₄O₆ represents the glyceryl trioleate (triolein) molecule.

3H₂O represents three water molecules, which are needed for the hydrolysis reaction.

3HCl represents three molecules of hydrochloric acid, which serve as the catalyst for the reaction.

3C₁₇H₃₃COOH represents the three oleic acid molecules released from triolein.

C₃H₈O₃ represents the glycerol molecule released from triolein.

Triolein undergoes acid hydrolysis when it reacts with hydrochloric acid, rupturing the ester bonds between the fatty acids and the glycerol molecule to produce the appropriate fatty acids and glycerol.

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Answer:The products of nuclear fusion are by far heavier than the reactants. Nuclear fusion is the combination of small atomic nuclei into larger ones.This reaction is accompanied with the release of a large amount of energy:

        ²₁H     +           ²₁H       →            ⁴₂He            +          energy

In the above reaction,

  two hydrogen atoms fuse and produce a heavier helium atom which differs from the combining atoms.

Explanation:

The balanced equation for the reaction between ammonia and oxygen, which produces nitrogen monoxide and water is as 4 NH3 + 5 O2 → 4 NO + 6 H2O

The reaction is exothermic, and it occurs through a series of steps.

Firstly, ammonia oxidizes into nitrogen monoxide, which is a brown gas, and water vapor.

4 NH3 + 5 O2 → 4 NO + 6 H2O

The nitrogen monoxide is further oxidized by reacting with more oxygen molecules.

2 NO + O2 → 2 NO2

Finally, the nitrogen dioxide can react with water vapor to produce nitric acid and nitrogen oxide.

3 NO2 + H2O → 2 HNO3 + NO

When oxygen reacts with ammonia, nitrogen monoxide and water are produced.

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Answer:

Endangered species and habitats simply mean that these species and habitats are about to extinct if not take important steps to save them. Many of us support this that we should take steps to save such species to maintain the ecosystem. On the other hand, there are many supporters of economic development even if in this habitat such as water bodies, forests, and other habitats are affected. If a habitat is affected or shrink in the development the species found in these habitats also affected and some might become endangered.

Losing the species and habitats will affect the ecosystem and biodiversity. It leads to disturbing in the health of the environment which affects the health and lifestyle of humans too. To maintain the health of the environment we need to prevent species to extinct and habitats to destroyed. Biodiversity and human should be in harmony and did not destroyed if we will not exploit there will be a better future.

We have given that :

Wavelength (λ) = 11.2 cm

                        = 0.112 m

Temperature(T) = 0°C = 273 K

Specific Heat capacity of water(c) = 4.184 J/g•K

So,Formula for Quantity of heat(Q) required

To raise the temperature is Q=mc∆T

                          where,{m is mass of ice}

                                       {C is heat capacity}

                                       {∆t is change in temperature}

Thus ,

        Q=(100g)(4.184J/g•K)(273K)

        Q=114223.2 J

Now,Energy of photon E =hc/(λ)

  where,{h is plant constant = 6.6×10^(-34)}

              {c is speed of light = 3×10^(-8)}

                       {λ is wavelength}

Thus ,

         E = [6.6 × 10^(-34)]×[3×10⁸] J

           E =1.77 ×10 ^(-24) J

To get number of of photon n = Q/E

     n = 114223.2/1.77 ×10 ^(-24)

       n = 6.45×10¹⁸

Therefore number of mole required= number of photon × avogadro number

                                                       = 6.45×10¹⁸ × 6.02 × 10²³

        Number of mole of photon  =38.82×10⁴¹

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Answer:

This should help you with your problem

The symbol that is used to indicate  “produces” or “yields” is "→"

Forward arrow is used to indicate the reaction moving towards products.

H₂SO₄ (aq) + 2NaOH(aq) →  Na₂SO₄(s) + 2H₂O (l)

This reaction yields or produces sodium sulphate and water when sulphuric acid and sodium hydroxide reacts.

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Answer:

a compound of hydrogen and carbon, such as any of those which are the chief components of petroleum and natural gas.

"the rain is rich in benzene and hydrocarbons"

Answer: a compound of hydrogen and carbon, such as any of those which are the chief components of petroleum and natural gas.

Explanation:

in organic chemistry, a hydrocarbon is an organic compound consisting entirely of hydrogen and carbon. Hydrocarbons are examples of group 14 hydrides. Hydrocarbons are generally colorless and hydrophobic, and their odors are usually weak or exemplified by the odors of gasoline and lighter fluid.

Answer:

1.1 x 10⁴ J

Explanation:

To calculate eth energy needed, you need to use the following equation:

Q = mcΔT

In this equation,

-----> Q = energy/heat (J)

-----> m = mass (g)

-----> c = specific heat (4.184 J/g°C)

-----> ΔT = change in temperature (°C)

You can plug the given values into the equation and solve.

Q = mcΔT

Q = (75.0 g)(4.184 J/g°C)(55.0 °C - 20.0 °C)

Q = (75.0 g)(4.184 J/g°C)(35.0)

Q = 11,000 J

Q = 1.1 x 10⁴ J

Answer:

5.17×10^21 ng

Explanation:

I assume you meant Tg if yes, the answer is this:

T is 10^12

5.17 Tg is 5.17×10^12 g

and n is 10^-9. but as we're converting g to ng, we don't include the - .

so now all we have to do is to put them all together!

5.17×10^12×10^9= 5.17×10^21 ng

if anything is unclear, ask me.

Answer:

A. Solids can only change shape if forced to make a change

Explanation:

A solid substance is one of the states of matter.

Matter is anything that has weight and occupies a definite space.

There are three states of matter commonly known: solids, liquids and gases.

Energy expenditure in order of greatest contribution to least contribution for the average person is Basal metabolism > Physical activity > Thermic effect of food.

Energy expenditure describes how much a person uses during physical activity and to maintain vital bodily processes like respiration, circulation, and digestion.

For instance, if we exercise for 10 minutes at a low intensity, we will use far less energy than if we exercise for 10 minutes at a high intensity. Energy expenditure is the term used to describe the usage of energy while working (EE).

The three components of energy expenditure as seen in lean and obese persons are:

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Delta S greater than 0 refers to a positive change in entropy, where the entropy of a system increases.

This means that the system becomes more disordered or random, and there is a greater number of possible arrangements or configurations of its particles. This can occur due to various factors, such as an increase in temperature, a phase transition, mixing of different substances, or chemical reactions that produce more products than reactants. A positive Delta S value is important in thermodynamics, as it indicates the direction of spontaneous processes that are favorable in terms of energy and entropy.

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83.9 grams of KCl are needed to prepare 0.750 L of a 1.50 M solution in water.

KCl is the chemical formula of potassium chloride.

Given that,

Amount of moles of KCl (n) = ?

Volume of KCl solution (v) = 0.75L

Concentration of KCl solution (c) = 1.5M

Since concentration (c) is obtained by dividing the amount of solute dissolved by the volume of solvent, hence

c = n / v

make n the subject formula

n = c x v

n = 1.5M x 0.75L

n = 1.125 mole

Now given that,

Amount of moles of KCl (n) = 1.125

Mass of KCl in grams = ?

For molar mass of KCl, use the molar masses of:

Potassium, K = 39g;

Chlorine,Cl = 35.5g

KCl = (39g + 35.5g)

= 74.5g/mol

Since, amount of moles = mass in grams / molar mass

1.125 mole = m / 74.5g/mol

m = 1.125 mole x 74.5g/mole = 83.81g

Thus, 83.9 grams of KCl are needed to prepare 0.750 L of a 1.50 M solution in water

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It is necessary to take into account the equilibrium circumstances in order to ascertain the responses on a bent rod that is supported by a smooth surface.

A normal reaction (N) perpendicular to the surface and a frictional force (F) parallel to the surface will occur when the bent rod is put on a horizontal and smooth surface.

Normal Reaction (N): The normal reaction is the force that the surface applies to a rod that is parallel to it. It balances the rod's weight as well as any other vertical pressures that might be exerted on it. The total vertical forces acting on the rod are equal to the size of the normal reaction.

Frictional force (F): The force that the surface applies to a rod that is perpendicular to it is known as the frictional force. It works against the rod's propensity to slide or move across the surface. The friction coefficient between the rod and the surface, as well as the natural reaction, both influence the frictional force's size.

Additional details, including the geometry of the bent rod, the forces acting on it, and the coefficient of friction between the rod and the surface, are required in order to calculate the precise values of the normal reaction and frictional force.

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The reaction between AgNO₃ and NaCl forms AgCl and NaNO₃. The balanced chemical equation for the above reaction is given as:

AgNO₃ (aq) + NaCl (aq) → AgCl (s) + NaNO₃ (aq)

The reaction between AgNO₃ and NaCl is both precipitation and double-displacement reaction. The balanced chemical equation is given as:

AgNO₃ (aq) + NaCl (aq) → AgCl (s) + NaNO₃ (aq)

                                          (ppt)

In a double displacement reaction the anions are exchanged and the more reactive element displaces the less reactive element. And in a precipitation reaction, a precipitate is formed in the end of the reaction. In this reaction, AgCl is formed as precipitate.

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Answer:

CuSO4

because copper formula is Cu

formula of sulfur is S and Oxygen O

Answer:What bonding pattern do you observe that you could use to predict whether a compound will be gas at standard temperature and pressure?

Answer

find out the number of moles and use the molar ratio (numbers in front of formulas (in this case they are all 1) to determine how many moles of each product you are going to get theoretically

n=m/M is the equation to use to get moles here

30.8 gm/32.04 g/mol=0.9612 moles of the methanol and also of the formaldehyde so

0.9612 moles of the formaldehyde x molar mass (M) 30.73 g/mol= 29.54 gm which is the theoretical yield you already have the actual yield of 24.7 gm

then divide the actual by the theoretical to get the % yield which is 83.6%

Explanation:

Answer:

A. In a graduated cylinder, put some quantity of water and measure the initial volume. Then put a coin and measure the volume. To find the volume of the coin, simply subtract the initial volume (water only) from the ending volume (water + coin). To measure the mass, take a dry coin and place it on an electronic scale. Density = mass / volume, so divide the mass by the volume to calculate the density of the coin.

B. When measuring the volume, make sure to look at the graduated cylinder at eye level and read from the bottom of the meniscus.

The number of grams of helium in a balloon at a pressure of 99.8 kPa, a temperature of 301 K, and a volume of 0.785 L would be 0.125g.

The mass of a substance can be calculated by multiplying the number of moles by its molar mass.

However, the number of moles of helium must be calculated as follows:

PV = nRT

Where;

0.985 × 0.785 = n × 0.0821 × 301

0.773 = 24.7n

n = 0.773 ÷ 24.7 = 0.031moles

mass of He = 0.031 × 4 = 0.125g

Therefore, the number of grams of helium in a balloon at a pressure of 99.8 kPa, a temperature of 301 K, and a volume of 0.785 L would be 0.125g.

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The null hypothesis (H0) states that the average time it takes smokers to quit smoking is greater than or equal to 16 years, while the alternative hypothesis (Ha) suggests that the average time is less than 16 years.

In the given scenario, the null and alternative hypotheses are as follows:

a) H0: 16 (The average time it takes smokers to quit smoking is greater than or equal to 16 years)

b) Ha: 16 (The average time it takes smokers to quit smoking is less than 16 years)

c) This is a left-tailed test because the alternative hypothesis (Ha) suggests a decrease in the average time to quit smoking.

d) To find the p-value, we need to conduct a statistical test. The test statistic (t-value) can be calculated using the sample mean, population standard deviation, sample size, and the hypothesized population mean (16 years). Using the t-distribution and degrees of freedom (n-1 = 24), the p-value can be determined.

e) Based on the p-value obtained from the test, we compare it to the significance level (α = 0.05). If the p-value is less than α, we reject the null hypothesis. Otherwise, we fail to reject the null hypothesis.

f) In the conclusion, we state whether there is sufficient evidence to reject the claim. If the p-value is less than the significance level (α = 0.01), we can conclude that there is sufficient evidence to reject the claim. However, if the p-value is greater than α, we fail to reject the claim.

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Answer:

A atomic number

Explanation:

not too sure

Answer:

Explanation:

Answer : The new concentration will be, 0.0757 M

Solution :

According to the dilution law,

where,

= molarity of NaCl solution = 0.455 M

= volume of NaCl solution = 375 ml = 0.375 L

= new concentration = ?

= volume of new concentration after dilution with water = 0.375 + 1.88 = 2.255 L

Now put all the given values in the above law, we get the new concentration.

Therefore, the new concentration will be, 0.0757 M

Answer:

0.0757 M NaCl

Explanation:

To calculate the new concentration of the sodium chloride (NaCl) solution after dilution, we can use the dilution formula.

\(\boxed{\sf C_1V_1=C_2V_2}\)

where:

In this case, we have 375 mL of a 0.455 M sodium chloride solution which is diluted with 1.88 L (1880 mL) of water. The final volume of the solution after dilution is:

\(\sf V_2 = V_1 + V_{\sf water} = 375\;mL + 1880\; mL = 2255\; mL\)

Therefore:

Substitute these values into the formula and solve for C₂:

\(\implies \sf 0.455\;M \cdot 375\;mL=C_2 \cdot 2255\;mL\)

\(\implies \sf C_2=\dfrac{0.455\;M \cdot 375\;mL}{2255\;mL}\)

\(\implies \sf C_2=0.075665188...\; M\)

\(\implies \sf C_2=0.0757\; M\;(3\;s.f.)\)

Therefore, the new concentration of the sodium chloride solution after dilution is 0.0757 M, to three significant figures.

Answer:

I think 5

Explanation:

The name of the binary compound Mg₃(PO₃)₂is magnesium pyrophosphate. In this compound, "Mg" represents the symbol for magnesium, and "PO3" represents the phosphate ion with a -3 charge.

The subscript "2" outside the parentheses indicates that there are two phosphate ions present. The naming of the compound follows the rules for naming binary compounds. The metal, magnesium, is named first, followed by the nonmetal, phosphate. Since phosphate is a polyatomic ion, its name remains unchanged. The subscript "3" outside the parentheses indicates that there are three magnesium ions present.

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A titration curve is a graph showing the progress of a titration of a mixture of chemicals as a function of the amount of reactant added. A plot of pH vs. quantity of titrant added is a typical titration curve.

The curve's form is determined by the nature of the titrant, the nature of the sample being evaluated, the extent of the acid-base reaction, and the concentration of the reactants. Furthermore, the equivalence point, which is the point at which the quantity of titrant added is just enough to neutralize the sample being titrated, is often indicated on a titration curve. The titration curve for a strong base-weak acid titration and the titration curve for a weak acid-strong base titration differ slightly, with different pH ranges and shapes. In general, the titration curve of a weak acid-strong base titration begins and ends at higher pH values than the titration curve of a strong acid-weak base titration. In addition, the titration curve of a weak acid-strong base titration has a distinct inflection point that is not present in the titration curve of a strong acid-weak base titration.

Finally, the titration curve of a weak acid-strong base titration is shown below. Therefore, let's look at the pH values of NaHCO3 titrated with 1.0 M HCl. 1. pH after 0 mL HCl addedThe pH of NaHCO3, which is a weak base, is slightly basic, or around 8.4.2. pH after 1.0 mL HCl addedWe will see a little decrease in pH when we add 1.0 mL of 1.0 M HCl to 10.0 mL of 1.0 M NaHCO3.3. pH after 9.5 mL HCl addedThe pH of NaHCO3 is about 4.5 at this point. This is the endpoint of the weak acid-strong base titration.4. pH after 10.0 mL HCl addedThe equivalence point is reached after adding 10.0 mL of HCl, which corresponds to the neutralization of 10.0 mL of 1.0 M NaHCO3. The pH at the equivalence point of a weak acid-strong base titration is around 7.0.5. pH after 10.5 mL HCl addedAt this point, the pH of the mixture is more acidic, approximately 3.5.6. pH after 12.0 mL HCl addedThis point will be more acidic than the previous point, and the pH will be around 2.0 to 2.5.

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Answer:

Because it lose detectable mass.

Explanation:

Law of conservation of mass states that substances involved in chemical reaction do not lose or gain any mass. So the above reactions don't demonstrate the law of conservation of mass because it lose mass