In living cells, glucose (C6H12O6) is broken down to make energy with the following reaction: C6H12O6 + 6O2 --> 6CO2 + 6H2O How many moles of glucose could be broken down with 0. 36 moles of oxygen​

Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

Force = 50 × 5

We have the final answer as

Hope this helps you

The required actual work output of the turbine is 1.2 Mj/kg.

If the isentropic efficiency of the turbine is 80%, calculate the actual work output of the turbine, in kj/kg.A steam turbine receives steam at a particular pressure and temperature and discharges it at a lower pressure and temperature. In general, the steam turbine's work output is less than the maximum possible work output, which is known as the isentropic turbine work output. The ratio of the actual turbine work output to the isentropic turbine work output is known as the isentropic turbine efficiency.ηt = Wtisentropic/WtactualWhere,ηt = isentropic turbine efficiencyWtisentropic = isentropic turbine work outputWtactual = actual turbine work outputGiven, isentropic efficiency of the turbine is 80%.ηt = 80% or ηt = 0.8We know thatWtactual = ηt x Wtisentropicor Wtisentropic = Wtactual/ ηtWe also know thath1 = 3.6 Mj/kgh2 = 2.1 Mj/kghence,Δh = h1 - h2 = 3.6 - 2.1 = 1.5 Mj/kgNow we have, Wtisentropic = Δh = 1.5 Mj/kgWtactual = ηt x Wtisentropic = 0.8 x 1.5= 1.2 Mj/kgTherefore, the actual work output of the turbine is 1.2 Mj/kg.

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1. B, the energy associated with the motion of an object

2. C, 12.4 g/mL

3. C, 5

1) B) Kinetic energy is energy associated with the motion of an object.

2) B) Density equals mass divided by volume: 1.38 g/mL

3) C) There are 5 significant figures in 20.300

4) A) 80 is the atomic number for mercury on the periodic table.

5) E) The formula for copper (II) sulfate pentahydrate is CuSO4•5H2O

So in summary:

• Kinetic energy is the energy of a moving object due to its motion.

• Density is calculated by dividing an object's mass by its volume.

• Significant figures refer to the known precision of a measurement based on the digits reported.

• Atomic symbols represent elements on the periodic table.

• Chemical formulas use symbols of the elements to show the proportions of atoms in a compound.

Answer:

Turning the lights off when they're not needed.

The standard enthalpy change of the explosive reaction is -11408 kJ/mol.

The standard enthalpy change of the reaction can be calculated using the enthalpy of formation values of the reactants and products.

The enthalpy of the formation of ammonium nitrate (NH4NO3) is -393.5 kJ/mol, the enthalpy of the formation of the fuel oil (C10H22) is -249.7 kJ/mol, the enthalpy of the formation of oxygen (O2) is 0 kJ/mol.

The enthalpy of the formation of nitrogen (N2) is 0 kJ/mol, the enthalpy of the formation of water (H2O) is -285.8 kJ/mol, and the enthalpy of the formation of carbon dioxide (CO2) is -393.5 kJ/mol.

The equation for the explosive reaction is 3NH4NO3(s)+C10H22(l)+14O2(g)>3N2(g)+17H2O(g)+10CO2(g). Therefore, the standard enthalpy change of the reaction can be calculated using the following equation:

ΔH = [3(-393.5) + (-249.7) + (14*0) + (3*0) + (17*-285.8) + (10*-393.5)] - [3(-393.5) + (-249.7) + (14*0)]

ΔH = -11408 kJ/mol.

Therefore, the standard enthalpy change of the explosive reaction is -11408 kJ/mol.

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The complete question is attached below.

Answer: Anaphylaxis

Explanation:

I have a nut allergy, and this has happened to me once. The doctors also told me a lot about anaphylaxis, and I like to learn about myself.

I hope this helps!! :)

Answer:The yellow crystalline substance is a compound. The green gas and red powder are elements.

Explanation

Elements and compounds are considered pure substances. Elements are made up of a single type of atom while compounds are composed of two or more elements. One example of a compound is the table salt (NaCl) which is made up of one atom of sodium and one atom of chlorine. The elements in the compound are combined chemically and there is a definite ratio of these elements. They are formed by a chemical reaction where chemical bonds are formed. Furthermore, the components of the compound can be separated through several means such as extraction, distillation, etc. The process of heating the yellow crystalline substance resulted in the separation of its components namely, the green gas and red powder.

The pOH value of solution will be  -5.54.

By calculating the concentration of OH ions in a solution, pOH can be used to gauge how acidic or alkaline a solution is. The OH ion concentration's negative logarithm would be known as pOH.

Given that:

pH = 7.5

kw = 8.48×\(10^{-14}\)

pH = - log [\(H^{+}\)]

[\(H^{+}\)] = \(10^{-pH}\)

Put the value of pH in above equation.

[\(H^{+}\)]  = \(10^{-7.5}\)

[\(H^{+}\)] = 3.16 × \(10^{-8}\)

Put the value of given data in above equation.

[\(OH^{-}\)] =Kw / \([H^{+} ]\)

[\(OH^{-}\)]  =  8.48×\(10^{-14}\) /  3.16 × \(10^{-8}\)

[\(OH^{-}\)] = 2.6 × \(10^{-6}\).

pOH  = -log [\(OH^{-}\)]

pOH = =log [ 2.6 × \(10^{-6}\)]

pOH = log [2.9] - 6log 10

pOH = 0.46 -6

pOH = -5.54

Therefore, the pOH value will be -5.54

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Answer:

Find the area of each face that you see and then multiply each area by two to account for the face on the opposite side.

Answer:

i dont no this one plz the question is hard

Answer:

it is an endothermic reaction

Explanation:

This is because there is a rise in temperature from 20 to 46. this means that the reaction takes in heat from the suuroundings

the imposition of sanctions on a foreign country affects our economy and their area because of the bad people that surround our area and economy

Chlorinated fluorocarbons are considered hazardous substances due to their detrimental impact on the ozone layer, but they are not explicitly listed as hazardous waste.

Chlorinated fluorocarbons (CFCs), despite not being on the list of hazardous waste, are nonetheless regarded as toxic due to their detrimental impact on the ozone layer and the environment. The Montreal Protocol has phased out CFCs, which were once widely used in sectors like refrigeration and as aerosol propellants.

They cause ozone depletion when they are released into the atmosphere. Although CFCs are not classified as hazardous waste, they can have a severe impact on the environment and people's health if they are improperly disposed of or leaked.

The ecosystem and public health may be in danger since CFCs persist in the environment and contribute to air pollution. It's critical to handle and dispose of CFCs properly to reduce their harmful effects on the environment and to prevent further ozone layer damage.

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According to the law of conservation of mass, Billy should have 12 grams after the experiment is finished.

Billy starts with 12 grams of sodium hydroxide as part of an experiment.

According to the law of conservation of mass, matter is not created not destroyed over the course of physical or chemical changes.

Thus, if he starts with 12 grams before the experiment, he must end with 12 grams after the experiment.

According to the law of conservation of mass, Billy should have 12 grams after the experiment is finished.

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Answer:

2.22 hours (or 2 and 2/9)

Explanation:

Divide the distance you want to travel by the constant speed.

t = time

d = distance

s = speed

t = d/s

t = 100 miles/45mph

t = 2.22 h

Stoichiometric equations for the combustion reactions ΔHf° (C2H2) = (2 x (-393.5)) + (-285.8) - (-1299.5) = +226.7 kJ mol-1(c) Acetylene hydrogenation reaction

Acetylene combustion reaction:C2H2 (g) + (5/2) O2 (g) → 2 CO2 (g) + H2O (l) ΔHc° = -1299.5 kJ mol-1 Hydrogen combustion reaction:2H2 (g) + O2 (g) → 2 H2O (l) ΔHc° = - 483.7 kJ mol-1Ethane combustion reaction:C2H6 (g) + (7/2) O2 (g) → 2 CO2 (g) + 3 H2O (l) ΔHc° = - 1560 kJ mol-1(b) Heat of formation method for verifying the standard heat of combustion of acetylene: The standard heat of combustion of acetylene from the heat of formation method is:ΔHc° (C2H2) = 2 ΔHf° (CO2) + ΔHf° (H2O) - 2 ΔHf° (C2H2) = -1299.5 kJ mol-1ΔHf° (CO2) = -393.5 kJ mol-1ΔHf° (H2O) = -285.8 kJ mol-1.

For verifying the answer in Q4(e)(1) using Hess's Law, we need to convert acetylene hydrogenation reaction into a combination of other reactions:Reaction 1:C2H2 (g) + (2.5) O2 (g) → 2 CO2 (g) + H2O (l) ΔH1 = -1299.5 kJ mol-1Reaction 2:2 CO2 (g) + 2.5 H2 (g) → C2H6 (g) + 5 O2 (g) ΔH2 = +1560 kJ mol-1After multiplying and adding the above equations, we get the required reaction as:C2H2 (g) + 2 H2 (g) → C2H6 (g) ΔH = -396.1 kJ mol-1.

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Answer:

Explanation:

Na 2O + CO 2 → Na 2CO. 3

This is an acid-base reaction (neutralization): Na 2O is a base, CO 2 is an acid.

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Brainlist please

The reaction of N₂O with CO₂ giving Na₂CO₃ is a combination reaction, where two reactants combines to form a product.

There are different kinds of reactions namely, displacement reactions, combination reactions, decomposition reaction etc.

The reaction in which one reactant species displace the constituent group of another reactant it is termed as displacement reactions. On decomposition reaction, one reactant decomposes into two or more products.

In a single displacement reaction, one of the group is displaced to form a new product and in double displacement reactions, two species from reactant side are displaced.

Similarly, a reaction in which two reactants simply combines to form a product is termed as combination reaction.

Therefore, the type of the given reaction is combination.

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Answer: The by-product of photosynthesis is oxygen.

Explanation: The photosynthesis process is the process by which photoautotrophs convert light energy into chemical energy which can later be used to fuel the activities of organisms. The three important elements required for the photosynthesis process are Water, carbon dioxide and light. The product formed from this process, stored in the form of sugars, which are created from water and carbon dioxide. The by-product of the photosynthesis process is oxygen.

6CO2 + 6H2O → C6H12O6 + 6O2

Answer:

Oxygen

Explanation:

Plants don't have any use for oxygen and we get oxygen from plants

Answer:

Acceleration is defined as the rate of change of velocity. ... For a particular interval, the average acceleration is defined as the change in velocity for that particular interval. Unlike acceleration, the average acceleration is calculated for a given interval.

D) HBr, H307, Br", and H2O components expect to be present in the beaker after the compounds have had time to react.

Hydrogen bromide (HBr), a diatomic molecule, combines in water to create hydrobromic acid, a caustic acid. HBr has a pH of 0.21. One of the strongest mineral acids is this one. When highly toxic and highly soluble in water gaseous hydrogen bromide is dissolved in the water, an acidic environment and corrosive liquid (HBr) is generated.

Because of its capacity to establish intermolecular hydrogen bonds with water, HBr is soluble in water. The difference in electronegativity between H and Br causes a dipole to emerge in HBr.

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if you dissolve 0.3 moles of HBr in 1 L of water, what do you expect to be present in the beaker after the compounds have had time to react?

A)H2Br, OH, and H2O

B) H30*, Br", and H2O

C)BrOH and H307

D) HBr, H307, Br", and H2O

Answer: decomposing biomass

Oxygen, heat and fuel are the elements you need to remove to extinguish the fire, removing the excess heat by water.

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Answer:

Manganese  

Explanation:

Manganese is a chemical element with symbol Mn and atomic number 25. Classified as a transition metal, Manganese is a solid at room temperature. :)

Answer:

A. Turn the volume up for more energy.

Explanation:

The reason why this is the correct answer is because the louder the music gets the more energy it puts out therefore the answer is option A.

The students increase the amplitude of the sound waves of the music turn the volume up to create more energy. Hence option A is correct.

Energy is defined as a quantitative quality that is conveyed to a person or a physical system and is discernible in the way work is done as well as in the way heat and light are produced. A conserved quantity is energy. According to the law of conservation of energy, energy can change its form but cannot be created or destroyed.

Sound waves are defined as the pattern of disruption brought on by energy's passage through a medium when sound travels away from its source. Pressure waves are produced by the vibration of objects and are known as sound waves. A sound source, such as the vibrating speaker's diaphragm in a stereo, produces the sound waves.

Thus, the students increase the amplitude of the sound waves of the music turn the volume up to create more energy. Hence option A is correct.

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When investigating whether or not the substance dibromoethane (ethylene dibromide) is carcinogenic, we follow the survival history of 161 white employees of 2 factories who were exposed to dibromoethane.

Among them, we observe 7 cancer deaths in the period 1940-1975. On the other hand, the mean number of cases over that period in that general population is expected to be 5.8. Do those 7 cases provide a reason to consider the substance as .Yes, the seven cases provide a reason to consider the substance dibromoethane as carcinogenic.

Since the number of cancer deaths observed in the 161 white employees exposed to dibromoethane is 7 which is greater than the expected cancer deaths in the general population, which is 5.8. Therefore, the excess cases may suggest that dibromoethane has some carcinogenic potential.

Hence, we can consider dibromoethane as carcinogenic.

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Carbon-14 having a half-life of 5,730 years. A fossil is found that has 22% of the carbon-14 found in the living sample. Then, the  fossil is approximately 17,150 years old.

We can use the formula for radioactive decay to solve this problem;

N = N0 × \((1/2)^{(t/T)}\)

where N is final amount of carbon-14, N0 is initial amount of carbon-14 (in a living sample), t istime that has passed since the death of the organism, and T is the half-life of carbon-14.

Let's assume that the initial amount of carbon-14 in the fossil was the same as in a living sample, and let N be 22% of N0. We can solve for t:

N = N0 ×  \((1/2)^{(t/T)}\)

0.22 N0 = N0 × \((1/2)^{(t/5730)}\)

\((1/2)^{(t/5730)}\) = 0.22

Taking the natural logarithm of both sides:

ln[\((1/2)^{(t/5730)}\)] = ln 0.22

(t/5730) × ln(1/2) = ln 0.22

t/5730 = -0.693

t = -0.693 × 5730 / ln 0.22

t ≈ 17,150 years

Therefore, the fossil is approximately 17,150 years old.

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The two isotopes that can be used for the process of dating are Potassium-41, Potassium-39.

The term radiometric dating has to do with the process by which the age of a rock can be discovered. We know that rocks that are around us have been around for very many years. As a matter of fact, there are some of the rocks that could be regarded as being as old as the earth could be in itself.

We have to note that one of things that could be regarded as important in the use of any isotope for dating is that isotope must have a long half life. The fact that the isotope has a long half life means that it is able to remain long enough for it to be used in the study of a substance.

We know that most of the rocks are composed of potassium as part of the components of the rock. In that case, if a dating technique would involve the potassium atom then it is likely to be a successful one as it were.

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Answer: 1.29 moles of ethylene glycol must be added to 1 kg of water to make a solution with a freezing point of -2.4°C. Molality of solution is 1.29 m.

Explanation:

Depression in freezing point is given by:

\(\Delta T_f=i\times K_f\times m\)

\(\Delta T_f=T_f^0-T_f=(0-(-2.4))^0C=2.4^0C\) = Depression in freezing point

i= vant hoff factor (for non electrolyte , i = 1)

\(K_f\) = freezing point constant for water= \(1.86^0C/kgmol\)

m= molality =\(\frac{\text{moles of solute}}{\text{weight of solvent in kg}}\)

m= molality =\(\frac{x}{1kg}\)

\(2.4^0C=1\times 1.86^0C/kgmol\times \frac{x}{1kg}\)

\(x=1.29\)

Molality = \(\frac{\text{moles of solute}}{\text {weight of solvent in kg}}=\frac{1.29mol}{1kg}=1.29m\)

Thus 1.29 moles of ethylene glycol must be added to 1 kg of water to make a solution with a freezing point of -2.4°C. Molality of solution is 1.29 m.

Answer:

1) C (m=T f/Kf)

2) 2.4 C

3) 1.3 m

4) 1.3 moles

Explanation:

This is correct on ed

Answer:

d

Explanation:

Answer:

D

Explanation:

IM JUST THAT DUDE