This is an impossible formula. Pretend it is real. Make sure your answer includes TWO decimal places. If you had 1 mol of Cr7(PO4)3 how many moles of Cr would there be?

Given that a steadily flowing stream of water is funneled into a graduated cylinder for exactly 30 s, during which time 50 mL is collected. We are to determine the volumetric flow rate of the stream and the mass flow rate.

The volumetric flow rate can be calculated by the following formula;Volumetric flow rate = Volume collected / Time taken= 50mL/ 30 s= 5/3 mL/s. Now to determine the mass flow rate of the stream, we need to consider the density of the fluid. For simplicity, we take the density of water to be 1 g/mL.

Therefore, Mass of fluid collected = volume collected × density of fluid ;  Mass of fluid collected = 50mL × 1 g/mL = 50g. Now, Mass flow rate = Mass of fluid collected / Time taken  Mass flow rate = 50 g / 30 s= 5/3 g/s. Thus, the volumetric flow rate of the stream is 5/3 mL/s and the mass flow rate of the stream is 5/3 g/s.

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Answer:

See explanation.

Explanation:

Hello there!

In this case, for the chemical reaction:

\(H_2O(g) CO(g)\rightleftharpoons CO_2(g) H_2(g)\)

It is widely known that the the only factor altering the equilibrium constant is the temperature because of its thermodynamic definition:

\(K=exp(-\frac{\Delta G(T)}{RT} )\)

Which is temperature dependent on the denominator and on the Gibbs free energy of reaction. In such a way, the answers can be just f and g, as the other factors modify Q (reaction quotient) rather than K. Thus, we can discuss about f and g:

f. This would increase K if the Gibbs free energy of reaction is positive (nonspontaneous).

g. This would increase K if the Gibbs free energy of reaction is negative (spontaneous).

It is important to discuss those two because the Gibbs free energy is not given.

Regards!

Answer: the pressure releases gas. The two most abundant gases are sulfur dioxide and carbon dioxide, and if levels of these gases increase,

Explanation:

The best description of cis-trans isomers is that they differ in their spatial arrangement around inflexible double bonds. Option E is correct.

Specifically, cis-trans isomers are a type of stereoisomers that have the same molecular formula and the same covalent bonds but differ in the spatial arrangement of their atoms due to the inflexibility of a double bond. In cis isomers, the two substituents on each carbon atom are on the same side of the double bond, while in trans isomers, the two substituents on each carbon atom are on opposite sides of the double bond.

This results in different physical and chemical properties for the two isomers. For example, cis and trans isomers of some compounds may have different boiling points, melting points, and reactivities.  Cis-trans isomerism is an important concept in organic chemistry as it affects the properties and behavior of molecules and can have significant implications for their biological activity, environmental fate, and industrial applications. Option E is correct.

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Answer:

A. exist in fixed amounts or available in limited supplies

Explanation:

Answer:

A

Explanation:

Answer:

CH4

Explanation:

if it is wrong, i blame my brain

Answer:

Needle and Scale Leaves. This kind of leaves are mostly found in 'evergreen' trees. ...

Lanceolate Leaf. ...

Oblong Leaf. ...

Linear Leaves. ...

Cordate Leaves.

Explanation:

Answer:

Broad

Flat Leaves.

Needle and Scale Leaves.  

Oblong Leaf.

Cordate Leaves.

Explanation:

According to the question,4.3 grams  would this oxygen (0₂) weigh in its liquid form.

What is the oxygen ?

Oxygen is an essential element for life. It is a colorless, odorless gas that makes up about 21% of the Earth's atmosphere. Oxygen is a vital component for the production of energy in all living things, as it is necessary for the process of respiration. Without oxygen, all living organisms would suffer, as their cells would not be able to produce the energy they need to survive. Oxygen is also necessary for the combustion of fuels, as it helps to create the conditions required for burning to occur. In addition, oxygen is used in many different industrial and scientific processes, ranging from welding to creating rocket fuel. Oxygen is incredibly important to life on Earth and is essential for the survival of all organisms.

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The mass percentage of C in morphine would be 4.21%.

The mass percentage of a composition in a compound is the mass of the composition relative to the mass of the entire compound. This can be mathematically expressed as:

Mass percentage = mass of component/mass of substance x 100%

In this case, we are looking for the mass percentage of C in \(C_{17}H_{19}NO_3\).

Molar weight of C = 12 g/mol

Molar mass of  \(C_{17}H_{19}NO_3\) = (12x17) + (1x19) + (14x1) + (16x3)

                                             = 285 g/mol

Mass percentage of C = 12/285

                                     = 4.21% to 2 decimal places.

In other words, the mass percentage of C in morphine is 4.21%.

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Answer:

Physical and chemical methods can be used to monitor the rate of a chemical reaction. Physical methods measure changes in properties like temperature, pressure, or volume. Chemical methods track reactant consumption or product formation using techniques like titration or spectrophotometry. The choice of method depends on the reaction being studied, and scientists use these methods to gain insight into reaction kinetics and optimize conditions for better efficiency and selectivity.

The option that could have caused Curve B to be different from Curve A is C. An enzyme could have been added to reaction B.

Enzymes are proteins that catalyze (speed up) chemical reactions in the body. One way in which enzymes can lead to less energy being used is by lowering the activation energy required for a particular reaction to occur.

By lowering the activation energy, enzymes enable reactions to occur more easily and quickly. This means that less energy is required to get the reaction started, which ultimately leads to less energy being used overall.

If  an enzyme was added to reaction B, then it would take less energy and so have a different curve from Reaction A.

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Answer:

To convert joules to calories, you can use the conversion factor:

1 calorie = 4.184 joules

To find out how many calories are in 4,180 joules, divide the given value by the conversion factor:

4,180 joules / 4.184 joules per calorie = 0.9 calories (approximately)

Therefore, there are approximately 0.9 calories in 4,180 joules.

Answer:Yes

Explanation:

Because Chinstrap penguins eat krills

Option B:

A mixture of ethanol and water (CH3CH2OH and H₂O) will form a homogenous solution.

Homogeneous solutions are solutions with uniform composition and properties throughout the solution.

Thus, from the given options, a mixture of ethanol and water (CH3CH2OH and H₂O) will form a homogenous solution.

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The new volume of the gas, given that it was 45 mL at standard pressure and heated from 20 °C to 50 °C is 47 mL

We know that the combined gas equation is given as:

P₁V₁ / T₁ = P₂V₂ / T₂

Where

With the above fomula, we can obtain the new volume of the gas shown below:

The new volume of the balloon can be obtained by using the combined gas equation as follow:

P₁V₁ / T₁ = P₂V₂ / T₂

(101.325 × 45) / 290 = (107.9 × V₂) /323

Cross multiply

290 × 107.9 × V₂ = 101.325 × 45 × 323

Divide both side by 290 × 107.9

V₂ = (101.325 × 45 × 323) / (290 × 107.9)

V₂ = 47 mL

Thus, the new volume of the gas is 47 mL

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Energy would it take to heat a section of the copper tubing that weighs about 650.0g, from 15.83°C to 24.11°C is 2.072 KJ.

The formula heat energy is given by :

q = mcΔT

given that :

m = 650.0 g

specific heat of copper c = 0.385 J/g °C

T1 = 15.83°C

T2 =  24.11°C

ΔT = T2 - T1 =  24.11°C - 15.83°C = 8.28 °C

putting all the values in the formula :

q = mcΔT

q = 650.0 g × 0.385 J/g °C × 8.28 °C

q = 2072.2 J = 2.072 KJ

Thus, Energy would it take to heat a section of the copper tubing that weighs about 650.0g, from 15.83°C to 24.11°C is 2.072 KJ.

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False. Water cannot be used to dilute and clean up oil paint because oil and water do not mix.

The pigments in oil paint are held together by a natural binder, such as linseed oil, which is derived from flax plants. Water cannot dissolve this binder since it is not soluble in water. As a result, using water to remove oil paint might cause streaks and smudging rather than really removing the paint.

Solvents like turpentine or mineral spirits are frequently used to remove oil paint. These solvents have the ability to break down the linseed oil binder, making it simple to clean brushes, palettes, and surfaces of paint. Solvents can be combustible and emit toxic fumes, thus it is crucial to handle them carefully. Using solvents in well-ventilated spaces or while wearing appropriate respiratory protection is also recommended.

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Answer:

81 gm

Explanation:

The mass of 1 mole is 27 gSo, Mass of 3 moles of Aluminium would be 3 × 27 = 81 gm

Thus mass of 3 Moles of Aluminium is 81 gm.

Answer:

0,15

Explanation:

Kc is the constant of equilibruim of concentration.

[ ] that symbol means concentration.

Kc = Products/Reagents

Kc = [SO2]² . [O2]/[SO3]²

The questions says that in equilibrium we have:

[0,15mol] of O2

Now, looking to the balancing of the equation, we see that SO3 and O2 are in a disposition 2:1. Which means that for every molecule of O2 formed, we need to use 2 molecules of SO3.

Then, we used 0,30 mol of SO3 for that convertion. That also means that we have 0,30mol of SO2, because he is in a disposition of 1:1.

[SO2] = 0,30mol

[SO3] = 0,30mol

Kc = [0,30]². [0,15]/[0,30]²

Kc = 0,15

Answer: atomic mass, atomic number

Explanation:

Magnesium reacts quickly with HCl while iron reacts more slowly with HCl. Copper does not react at all with HCl.

We have to  recall that the reactivity of metals is determined by the position of the metal in the electrochemical series. This is an  arrangement of metals from more reactive to least reactive.

Magnesium and iron  reactwith dilute HCl to give hydrogen gas but the rates of reaction differ. Magnesium reacts fastest with HCl followed by iron but copper does not react with HCl at all.

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A) The chemical symbol for the ion is Fe+

B) It has 20 electrons in total, and there are 6 3p electrons in the ion.

C) There are 6 electrons present in the 3p orbital.

The atomic cation with the given electron configuration is represented by the chemical symbol Fe+.

To determine the number of electrons in the ion, we need to count the electrons present in the electron configuration. In the given configuration, we can see that the 1s orbital has 2 electrons, the 2s orbital has 2 electrons, the 2p orbital has 6 electrons, the 3s orbital has 2 electrons, the 3p orbital has 6 electrons, the 3d orbital has 1 electron, and the 4s orbital has 1 electron. Adding up these numbers, we have:

2 + 2 + 6 + 2 + 6 + 1 + 1 = 20

Therefore, the ion has 20 electrons.

To determine the number of 3p electrons in the ion, we look at the 3p orbital. In this case, there are 6 electrons present in the 3p orbital.

In summary, the chemical symbol for the ion is Fe+, it has 20 electrons in total, and there are 6 3p electrons in the ion.

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The percent composition of hydrogen, phosphorous and oxygen in phosphoric acid is 3.06 %,31.60%,65.31 % respectively.

Percent composition is defined as a convenient way to record concentration of solution.It is a expression which relates solute to solvent as,mass of solute/mass of solution ×100.There are two types of percentage composition percent weight by volume and percent volume by volume .

Percent composition of hydrogen=3/97.99×100=3.06%.

Percent composition of phosphorous=30.97/97.99×100=31.60%

Percent composition of oxygen=64/97.99×100=65.31%

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Answer:

a

Explanation:

cutting a piece of paper

Explanation:

Answer:

A physical change occurs when a substance changes, but no new substance is formed.

Explanation:

Answer:

universe, galaxy, solar system, planet

Answer:

Explanation

Answer:

Fermentation

Explanation:

Fermentation is the general term used to describe the process by which sugars such as glucose, starch or cellulose are converted to ethanol and carbon (iv) oxide. It is anaerobic process meaning that it occurs in the absence of air or in very low oxygen concentrations.

Yeast and other microorganisms ferment glucose into ethanol and carbon (iv) oxide with the help of the enzyme zymase. Polysaccharides such as starch and cellulose are first broken down into glucose by enzymes such as diastases, maltase and cellulase, before it is then converted into ethanol and carbon (iv) oxide.

The equation for the conversion of glucose to ethanol and carbon (iv) oxide is as follows:

C₆H₁₂O₆(aq) -----> 2C₂H₅OH(aq) + 2CO₂(g)

Answer:

hi friend I'm from India how are you?

I think it would be d bc water is everywhere