How many moles of water are needed to react to produce 5.0 moles of sodium hydroxide?
Please help!!!

Answer:

The print is so little i cant read it. :( Sorry!

Explanation:

Answer:

4 PH₃ + 8 O₂ -----> P₄O₁₀ + 6 H₂O

Explanation:

An equation is balanced when there is an equal amount of each element on both sides of a chemical reaction. Remember, the reactants are the molecules that lie on the left of the reaction arrow and the products are the molecules that lie on the right.

The unbalanced equation:

PH₃ + O₂ -----> P₄O₁₀ + H₂O

Reactants: 1 phosphorus, 3 hydrogen, 2 oxygen

Products: 4 phosphorus, 2 hydrogen, 11 oxygen

As you can see, there is an unequal amount of each element. To balance the equation, we can add coefficients to change the quantity of particular molecules. By doing this, you subsequently change the amount of the elements.

The balanced equation:

4 PH₃ + 8 O₂ -----> P₄O₁₀ + 6 H₂O

Reactants: 4 phosphorus, 12 hydrogen, 16 oxygen

Products: 4 phosphorus, 12 hydrogen, 16 oxygen

****P₄O₁₀ technically has a coefficient of 1

My classmate's statement in incorrect because plants are also composed of cells.

All living things are composed of cells. A cell is the smallest unit of living organisms. Cells obtain energy via the process of cellular respiration. During cellular respiration, glucose is broken down to yield carbon dioxide and water.

In photosynthesis, carbon dioxide and water are combined to form glucose. The two processes are opposites of each other. Plants produce their own food via photosynthesis. Since plants are composed of cells, plant cells also undergo cellular respiration therefore my classmate's statement in incorrect.

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Answer:

mL

Explanation:

milliliters

Answer:

The given equation is not balanced.

On the left-hand side, there are 3 atoms of potassium (3K), 3 atoms of bromine (3Br), and 1 atom of iron (Fe).

On the right-hand side, there is 1 atom of bromine (Br), 3 atoms of potassium (3K), and 1 atom of iron (Fe).

The number of atoms of each element should be equal on both sides of the equation. Therefore, to balance the equation, we need to adjust the coefficients of the molecules.

The balanced equation is:

3kBr + FeCl3 -> FeBr3 + 3KCl

The balanced equation has 3 atoms of potassium (3K), 3 atoms of bromine (3Br), 1 atom of iron (Fe), and 3 atoms of chlorine (3Cl) on both sides of the equation.

ill answer if u answer this FAST

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The true statement about metamorphosis is the physical form of the young animal is completely different from the physical form of the adult.

Metamorphosis is the change in the structure of the animal in several stages until it changes into an adult form.

Animals that undergo metamorphosis are amphibians, insects, mollusk, crustaceans, fishes, etc.

The changes that occur in every stage are shape, nutrition form, behavior, etc.

The importance of metamorphosis is to change in every stage to reduce competition for food, predators, etc.

Thus, the correct option is D.

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These liquids can be separated by the process of distillation because the 2-propanol and water option B) have combined physically and have the same boiling point.

A bottle of rubbing alcohol contains both 2-propanol and water.

These liquids can be separated by the process of distillation because the 2-propanol and water have combined physically and retain their different boiling points.

The process of separating two miscible liquids with different boiling points is called distillation.

The procedure is based on the idea that the liquids have various boiling points.

Thus, during the boiling process, one of the fluids vaporizes faster than the other, and that vapor is then collected and allowed to condense, producing pure liquid.

Alcohol and water are examples of two miscible liquids that can be separated by distillation.

The process of distillation operates on the fact that the liquid with the lowest boiling point is vaporized first.

Alcohol has a lower boiling point than water, so alcohol is vaporized first in distillation, leaving the water behind.

A bottle of rubbing alcohol contains both 2-propanol and water.

These liquids can be separated by the process of distillation because the 2-propanol and water have combined physically and retain their different boiling points.

This means that 2-propanol and water are physically combined; that is, they do not form any new chemical bonds with each other.

Consequently, the molecules of the substances remain separate from each other.

Furthermore, both water and 2-propanol have various boiling points.

The boiling point of 2-propanol is 82.6 °C, while that of water is 100 °C. Thus, they can be separated using distillation.

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We must first determine how much heat is produced by the combustion of aniline. According to the chemical equation, 4 moles of aniline react with 35 moles of oxygen to create 4 moles of nitrogen dioxide, 24 moles of carbon dioxide, and 14 moles of water. The mole ratio of aniline to heat emitted is as a result.

When one mole of water is created from hydrogen and oxygen in the opposite reaction (equation d), it exhales 285.8 kJ of energy.

How much heat energy is released when 1.8 g of glucose is burned?

C₆H₁₂O₆(s)+6O₂(g)→6CO₂(g)+6H₂O(l); ΔH = −2900kJ

One mole (about 180g) of glucose burned during combustion, releasing 2900kJ (29001801.8=29kJ) in heat.

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Answer:

The answer is

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

From the question

volume of benzene = 250 mL

density = 0.8786 g/mL

The mass is

mass = 250 × 0.8786

We have the final answer as

Hope this helps you

Based on the kinetic theory of gases, scientists could infer from Robert Boyle’s Law that an inverse relationship exists between the pressure of gases and their volume if the temperature is kept constant because the decrease in the volume of the vessel containing the gases will result in less room for movement of the gases and hence, the frequency of collisions increases and subsequently the pressure of the gases will increase.

According to the kinetic theory of gases, a gas is made up of numerous submicroscopic particles (atoms or molecules), all of which are moving randomly and continuously. The container's walls and the quickly moving particles frequently collide in this situation resulting in the gas pressure.

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The amount of heat energy produced when 1 g of hydrogen and 2 g of nitrogen are reacted, is -6.61 KJ

First, we shall obtain the limiting reactant. Details below:

3H₂ + N₂ -> 2NH₃

From the balanced equation above,

28 g of N₂ reacted with 6 g of H₂

Therefore,

2 g of N₂ will react with = (2 × 6) / 28 = 0.43 g of H₂

We can see that only 0.43 g of H₂ is needed in the reaction.

Thus, the limiting reactant is N₂

Finally, we the amount of heat energy produced. Details below:

3H₂ + N₂ -> 2NH₃ ΔH = -92.6 KJ

From the balanced equation above,

When 28 grams of N₂ reacted, -92.6 KJ of heat energy were produced.

Therefore,

When 2 grams of N₂ will react to produce = (2 × -92.6) / 28 = -6.61 KJ

Thus the heat energy produced from the reaction is -6.61 KJ

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1) Diesel has a higher viscosity than petrol.

2) Petrol is more flammable than diesel.

3) The formula will be C₁₀H₂₂.

4) The equation is; 2C8H18+25O2→16CO2+18H2O.

Depending on the precise composition and temperature, the viscosity of gasoline and diesel can change. In general, diesel is more viscous than gasoline. Higher viscosity fluids are thicker and flow more slowly than lower viscosity fluids because viscosity relates to the resistance of a fluid to flow.

Diesel is less flammable than gasoline. The lowest temperature at which gasoline can evaporate and turn into an ignitable combination in air is known as its flash point, and it is lower for gasoline. Compared to diesel fuel, petrol vapors are much more flammable and can ignite at lower temperatures.

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Answer:

Explanation:

The pH of 0.02 M hydrochloric acid is approximately 1.7.

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IF THE ANSWER IS CORRECT , THEN MARK ME AS BRAINLIST

1.Surround the area with absorbent material, then cover the spill.

2.Scoop up the material and place it in a container.

3.Place the bagged waste in a hazardous waste disposal container.

4.Wipe down the area with a suitable cleaning agent

proper liquid spill cleanup procedures are essential to minimize the risk of harm to individuals and the environment. The steps involved in the cleanup process include surrounding the area with absorbent material, covering the spill, scooping up the material and placing it in a container, and disposing of the hazardous waste container in accordance with local regulations. It is also important to clean and disinfect the container used to collect the spilled material, inspect the area to ensure no hazardous materials remain, train personnel on proper spill cleanup procedures, conduct periodic spill cleanup drills, and update the facility's emergency response plan to include spill cleanup procedures. By following these steps, individuals can ensure that liquid spills are handled safely and effectively.

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Height of a mountain is 5348.9 meter.

1 kilometer is equal to 1000 meter.

The meter, symbol m, is the primary unit of period in the international system of gadgets, although its prefixed paperwork also are used relatively regularly.

A meter is a general metric unit identical to about three feet 3 inches. This means that a meter is part of the metric gadget of dimension. Guitars, baseball bats, and backyard sticks are examples of items which might be approximately one meter lengthy. Meters also are used to measure distances in races, inclusive of strolling and swimming.

Meter readings tell power suppliers how a lot gasoline and energy you are the use of. In case you do not give your provider meter readings they may have to guess your usage. You typically turn out to be paying too much or too little while this occurs.

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The liquid substance used in the laboratory for dissolving dry mortar on floor flies is hydrochloric acid.

Hydrochloric acid is a strong acid that can dissolve many materials, including dry mortar.

Hydrochloric acid also known as muriatic acid or sulfuric acid, are commonly used to dissolve hardened mortar or concrete residues.

To use hydrochloric acid to dissolve dry mortar, you will need to mix the acid with water in a ratio of 1 part acd to 10 parts water.

You should then apply the mixture to the dry mortar using a brush or spray botle.

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Answer:

63.9%

Explanation:

moral mass of x (# x ions) -divided by- Moral mass of compound.

% of cl = (35.5g) (2 cl ions) -divided by- 111.1g × 100

%= 63.9%

Answer:

The abiotic factor is Sunlight.

The change in internal energy = 2.701 x 10² kJ

Given

Heat absorbed by system = 1.69 x 10² kJ

Work done on system = 1.011 x 10² kJ

Required

The change in Internal energy

Solution

We can use the first law of Thermodynamics :

\(\tt \Delta U=Q+W\)

The sign rules for heat and work are set as follows:  

• The system receives heat, Q +  

• The system releases heat, Q -  

• The system does work, W -  

• the system accepts work, W +  

Heat absorbed/receive heat from surrounding = Q+

Work done on the system = W+

and input the given values

\(\tt \Delta U= 1.69\times 10^2+1.011\times 10^2\\\\\Delta U=\boxed{\bold{2.701\times 10^2~kJ}}\)

Isomers with distinct functional groups but the same chemical formula are referred to as functional group isomers.

Examples of functional group isomers include:

1) Alcohols - These compounds contain an -OH group, such as ethanol (\(C_2H_5OH\)) and propanol (\(C_3H_7OH\)).

2) Aldehydes - These compounds contain a carbonyl group, such as formaldehyde (\(CH_2O\)) and acetaldehyde (\(CH_3CHO\)).

3) Ketones - These compounds contain an oxygen double-bonded to two other carbons, such as acetone (\(CH_3COCH_3\)) and propanone (\(C_3H_6O\)).

4) Carboxylic Acids - These compounds contain a carboxyl group, such as acetic acid (\(CH_3COOH\)) and propionic acid (\(C_3H_5COOH\)).

5) Esters - These compounds contain an oxygen double-bonded to a carboxyl group, such as ethyl acetate (\(C_2H_5COOCH_3\)) and propyl acetate (\(C_3H_7COOCH_3\)).

6) Amides - These compounds contain an amide group, such as formamide (\(NH_2CHO\)) and acetamide (\(CH_3CONH_2\)).

Functional group isomers are structural isomers because they have the same molecular formula but different structural arrangements due to the presence of different functional groups.

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Based on the equation of reaction:

The mole ratio is obtained from the equation of the reaction as given below:

1. Molecules of NO₂ that can form from 1.11 mol O₂ and excess NO = 1.11 * 6.02 * 10²³

Molecules of NO₂ = 1.336 * 10²⁴ molecules

2. The molecules of NO that will react with 25.7g O₂ = 25.7/32 * 2 * 6.02 * 10²³

molecules of NO = 9.67 * 10²⁴ molecules

3. The molecules of O₂ that are needed to make 3.76 x 10²² NO₂ = 3.76 x 10²² * 1/2

molecules of O₂ = 1.88 * 10²² molecules

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Answer:

Explanation:

Here, we want to get the pH of the given molecule

Firstly,we write the ionization equation so as to get the number of hydrogen atoms from its dissociation

We have this as:

The Pka value for formic acid is 3.75

We have it that:

Using the ICE equation for the equilibrium constant,we have it that:

Thus, we have:

Since x is very small as opposed to tthe initial acid concentration, we approximate x as 0 below

Thus,we have:

Finally, we know that the pH is the negative logarithm to base 10 of the concentration of hydroxonium ion

Answer:

B is CH₃-CH₂-CH₂-CH₂-C(triplebond)CH (1-hexyne)

C is CH₃-CH₂-CH₂-CH₂-C(triplebond)C-CH₃ (2-heptyne)

Explanation:

The mass of hydrogen peroxide, H₂O₂ that is required to produce 72.5 grams of water, H₂O is 136.9 g

First, we shall write the balanced equation. This is shown below:

2H₂O₂ --> 2H₂O + O₂

From the balanced equation above,

36.0306 g of H₂O were obtained from 68.0294 g of H₂O₂

With the above information, we shall determine the mass of hydrogen peroxide, H₂O₂ required to produce 72.5 grams of water. Details below:

From the balanced equation above,

36.0306 g of H₂O were obtained from 68.0294 g of H₂O₂

Therefore,

72.5 g of H₂O will be obtain from = (72.5 × 68.0294) / 36.0306 = 136.9 g of H₂O₂

Thus, the mass of hydrogen peroxide, H₂O₂ required is 136.9 g

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One characteristic of water in its liquid state is that it has a known volume but no known shape. Temperature range for liquid water is 0°C to 100°C.

A type of matter known as a liquid has unique characteristics that make it less rigid than a solid but more rigid than a gas. Unlike a solid, which has a defined shape, a liquid can flow.

Water does not have the characteristic of becoming denser as it freezes. When water freezes, it transforms into ice, which creates a cage-like structure and lowers density than water.

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