Can you guys help me I have missing assignments and I need help.

The energy built up in the earth could have caused a tectonic plates movement. The movement could have made a tsunami and moved the boat. The impact could have caused the boat to move up to the top of a building.

Answer: See below

Explanation:

n of CO2​ = 0.364mmol

Mass of C = 0.364*12 = 4.368 mg

n of H2​O = 184.37​ = 0.243 mol

The compound has 2*0.243mmol of H

Mass of H = 0.486 mg

Mass of O = 10.68 − (4.368+0.486) = 5.826mg

Moles of O = 0.364

C:H:O Ratios

0.364 : 0.486 : 0.364

= 1 : 1.34 : 1

= 3 : 4 : 3

So the empirical formula is C3​H4​O3​,

Empirical formula mass

= 88= 2 × Molar mass

And the molecular formula is C6​H8​O6

Let the weak acid HA be acetic acid which is the analyte. Titrant is NaOH a strong base.

1. No NaOH is added yet. So pH is low containing predominantly H3O+ weakly dissociated from the weak acid.

CH3COOH + H2O ⇌ CH3COO- + H3O+

2. As NaOH is added dropwise, H3O+ gets consumed by the OH- furnished. But still the analyte pH is acidic.

3.At the equivalence point moles of NaOH added = moles of CH3COOH in the analyte.

The ions are completely neutralised. The solution contains CH3COONa + H2O

CH3COOH + NaOH ⇌ CH3COONa + H2O

4.CH3COONa dissociate into acetate(CH3COO-) and sodium ions(Na+). So acetate ion is relatively strong base it reacts with water formed to give OH- ions.

CH3COONa ⇌ CH3COO-  + Na+ ⇌ CH3COOH + OH-

                                                    H2O

5. Beyond equivalence point the titration is identical with strong acid and strong base.

The ions present in the solution past the equivalence point is CH3COOH + OH-

A titration is a technique where an answer of regarded awareness is used to determine the attention of an unknown answer. Commonly, the titrant (the know answer) is brought from a buret to a acknowledged quantity of the analyte (the unknown answer) until the response is whole.

The motive of the titration is the detection of the equivalence factor, the factor at which chemically equivalent amounts of the reactants have been mixed. The quantity of reactants that have been combined at the equivalence point depends on the stoichiometry of the response.

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The final % BPB in each dilution is 0.001%, 0.0005%, 0.0004%, 0.0002%, 0.00004% and 0.00002%.

To calculate the final % BPB in each dilution, you need to take into account the dilution factor and the initial concentration of the 0.1% BPB solution. The dilution factor is the ratio of the final volume to the initial volume.

The final concentration of BPB in each dilution can be calculated by using the following formula:

Final concentration = Initial concentration x dilution factor

The dilution factors for each dilution are 1:2, 1:4, 1:5, 1:10, 1:50 and 1:100 respectively. By multiplying the initial concentration of 0.1% with these dilution factors, we get the final concentrations of 0.001%, 0.0005%, 0.0004%, 0.0002%, 0.00004% and 0.00002% respectively.

It's important to note that when preparing dilutions, it is important to make sure that the final volume of each dilution is the same, in this case it's 4ml and to use the appropriate dilution factor for each case, as it affects the final concentration of BPB.

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The following chemical equation 2C8H18(g)+ 25O2(g)→ 16CO2(g)+ 18H2O(g) is balance and 48.64 grams of oxygen is required in the combustion of octane in gasoline.

When burning of petrol happens and releases toxic hydrocarbons and carbon dioxide gasses with some amount of oxygen is known as combustion.

The balanced chemical equation is 2C8H18(g)+ 25O2(g)→ 16CO2(g)+ 18H2O(g),

                      number of moles = mass / molar mass

substituting the value in equation,

                      number of moles = 14 / 114g = 0.122 moles.

number of moles of oxygen 0.122 × 0.122 moles. = 1.52 moles.

                    1.52 = mass / 32

                      mass = 48.64 gram.

Therefore,48.64 grams of oxygen is required in the combustion of octane in gasoline.

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The balanced chemical equation would be as follows,

C8H18(g)+12.5 O2(g)→ 8 CO2(g)+ 9 H2O(g)

105.26  grams of oxygen are required to react with 14.0 grams of octane ( C8H18 ) in the combustion of octane in gasoline.

A chemical reaction is a process in which one or more substances, also known as reactants are converted to one or more different substances, known as products. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products

The balanced chemical equation would be as follows,\

C8H18(g)+12.5 O2(g)→ 8 CO2(g)+ 9 H2O(g)

114 grams of octane ( C8H18 ) require 400 grams of oxygen

1 gram of octane requires 400/114 grams of oxygen

30 grams of octane require 400/114×30 grams of oxygen

30 grams of octane require 105.26  grams of oxygen

Thus,105.26  grams of oxygen are required to react with 14.0 grams of octane ( C8H18 ) in the combustion of octane in gasoline.

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Answer:

k = 0.0306 min-1

Explanation:

The table is given as;

Time, Concentration

0 1.48

5 1.27

10 0.98

15 0.84

The integrated rate law for a first order reaction is given as;

ln [A] = -kt + ln [Ao]

where;

[A] = Final Concentration

[Ao] = Initial Concentration

k = rate constant

t = time

In the table, taking the first two sets of values;

t = 5

k = ?

[Ao]  = 1.48

[A] = 1.27

Inserting into the equation;

ln(1.27) = - k (5) + ln(1.48)

ln(1.27)  - ln(1.48) = -5k

-0.1530 = -5k

k = -0.1530 / -5

k = 0.0306 min-1

Answer: The answer is B. The pressure inside the tires increased.

Explanation:

The relationship between the pressure, volume, and temperature of a gas is described by the ideal gas law, which is usually written as:

\($$PV = nRT$$\)

where:

- \(\(P\)\) is the pressure,

- \(\(V\)\) is the volume,

- \(\(n\)\) is the number of moles of gas,

- \(\(R\)\) is the ideal gas constant, and

- \(\(T\)\) is the temperature (in Kelvin).

In this case, the volume \(\(V\)\) and the number of moles \(\(n\)\) of air in the tires stay the same. The temperature \(\(T\)\) is increasing. Therefore, for the equation to remain balanced, the pressure \(\(P\)\) must also increase.

So, the answer is B. The pressure inside the tires increased.

Answer:

the answer is seventeen

Answer:

The substances in a mixture can be separated using physical methods such as filtration, freezing, and distillation.

There is little, see Enthalpy of mixing, or no energy change when a mixture forms.

Mixtures have variable compositions, while compounds have a fixed, definite formula.

Explanation:

The enthalpy of the reaction is 14 J/mol.

The enthalpy of a reaction (ΔH) is the amount of energy transferred between a system and its surroundings during a chemical reaction at constant pressure, measured in joules per mole (J/mol). This value is important because it can tell us whether a reaction is exothermic or endothermic, as well as give us information about the strength of chemical bonds within the reactants and products.To calculate the enthalpy of a reaction, we need to know the amount of energy released or absorbed (Q) and the number of moles of the compound involved in the reaction (n). We can use the equation:
ΔH = Q/n
Given that 6 moles of a compound produce 84 J of energy, we can calculate the enthalpy of the reaction as follows:
ΔH = Q/n
ΔH = 84 J / 6 mol
ΔH = 14 J/mol
This means that for every mole of the compound involved in the reaction, 14 J of energy is transferred between the system and the surroundings. Since the value is positive, we can conclude that the reaction is endothermic, meaning that it requires an input of energy to occur.It is worth noting that the enthalpy of a reaction can depend on a number of factors, such as temperature, pressure, and the specific conditions under which the reaction occurs. As such, it is important to take these factors into account when calculating or predicting enthalpy values.

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1. What is conversion in digital marketing?

Conversion in digital marketing refers to the process of turning a website visitor into a paying customer, subscriber, or any other type of desired action. It is the ultimate goal of any marketing campaign and is usually measured by the conversion rate, which is the percentage of website visitors who take the desired action. Conversion can take many forms, depending on the objective of the campaign. It could be a sale, a lead generation form, a newsletter subscription, or any other desired action. A successful conversion requires an effective strategy that includes targeting the right audience, providing a seamless user experience, and offering value to the visitor. Digital marketers use a variety of tactics to optimize the conversion rate, such as improving website design, creating compelling copy, using call-to-actions, and testing different variations of the conversion funnel.

2. What are some common conversion optimization techniques?

Some common conversion optimization techniques include improving website design, creating compelling copy, using clear call-to-actions, simplifying the conversion funnel, and reducing friction points. Improving website design involves creating a visually appealing and user-friendly website that provides a seamless user experience. Creating compelling copy involves crafting persuasive messaging that resonates with the target audience and encourages them to take action. Clear call-to-actions guide the visitor to take the desired action and simplify the decision-making process. Simplifying the conversion funnel involves reducing the number of steps required to complete the desired action and removing any unnecessary information or distractions. Reducing friction points involves addressing any obstacles or objections that may prevent the visitor from completing the desired action, such as high shipping costs, complicated forms, or a lack of trust signals.

3. How do you measure conversion rate?

Conversion rate is measured by dividing the number of website visitors who took the desired action by the total number of website visitors. For example, if a website had 1,000 visitors and 50 of them completed a purchase, the conversion rate would be 5%. It is important to track conversion rate over time to identify trends and make data-driven decisions. Conversion rate can also be measured for different segments of website visitors, such as by device type, traffic source, or geographic location, to gain insights into which segments are most valuable and which may require further optimization.

4. Why is conversion optimization important?

Conversion optimization is important because it helps businesses maximize the return on investment from their marketing campaigns. By improving the conversion rate, businesses can increase revenue, generate more leads, and improve customer retention. It also helps businesses identify areas for improvement in their marketing strategy and website design. By testing different variations of the conversion funnel and measuring the results, businesses can make data-driven decisions and continually optimize their campaigns for maximum effectiveness. Conversion optimization also provides a better user experience for website visitors, which can improve brand perception and customer loyalty. In today's competitive digital landscape, conversion optimization is essential for businesses to stay ahead of the competition and achieve their growth goals.

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Claim: The ability of a crane to pick up and release pieces of metal is due to the principles of electromagnetism.

Evidence:

Reasoning:

Therefore, the principles of electromagnetism are responsible for the crane's ability to pick up and release pieces of metal.

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The order of strongest to weakest is as follows hydrogen bonds, dipole-dipole forces and dispersion forces. The strongest intermolecular forces are hydrogen bonds.

The high boiling point of water is a result of this connection. These bonds are crucial to the structure of both synthetic and organic polymers. Water, or H2O, is an illustration of a hydrogen bond.

Due to the persistent polarity of molecules that exists between polar molecules at the tail and head of the molecule itself, dipole-dipole forces are rather weak. Hydrochloric acid, also known as HCL, is an illustration of dipole-dipole forces.

The momentary generated dipole that causes an unequal electron density makes dispersion forces the weakest intermolecular interactions. Methane or molecules containing CH4 are an illustration of dispersion force.

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Answer:

Organic Molecule.

Explanation:

Any molecule with C atoms and H atoms are organic molecules in chemistry.

Examples could be C₄H₅, C₉H₁₈O₆, C₅H₁₂N.

Answer:

Outer electrons.

Explanation:

All bonds are localized bonds formed between two atoms by the donation of electrons from each atom.

Answer:

water because the other two were formed through a chemical process

Based on the given experimental record, the trend in the last column (time) is expected to decrease as the volume of sodium thiosulfate in water increases. This means that as the volume of sodium thiosulfate increases, the time taken for the cross to become invisible during the reaction decreases.

The rate of a chemical reaction is influenced by several factors, including the concentration of reactants. In this case, the volume of sodium thiosulfate represents the concentration of the reactant in the solution. When the volume of sodium thiosulfate is higher, the concentration of the reactant increases. According to the collision theory, a higher concentration of reactants leads to a greater frequency of successful collisions between particles, resulting in a faster reaction rate. In this experiment, the reaction between sulfuric acid and sodium thiosulfate forms a yellow precipitate, which obscures the visibility of the cross. As the concentration of sodium thiosulfate increases, more reactant particles are available, leading to a higher collision frequency and faster reaction rate. Consequently, the cross becomes invisible in a shorter time period. Therefore, the trend in the last column of the experimental record is expected to show a decrease in time as the volume of sodium thiosulfate increases.

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Answer:

it will take 1 day and 5 hours of work for the second day to earn 160

Answer:

4 times 8 equals 24 . 24 times 6 equals 144 and 24 more is 168$.So it will take 7 Days to get 160$ .

Explanation:

math

In scenario 1. the value of w, work done is positive. 2. the value of w is negative. 3. the value of w or q is positive or negative depending on the situation.

The terms in the given problem are w and q. Let us find out whether the value of w or q is positive or negative in each scenario. Person rolls a bowling ball across the floor, where the bowling ball is defined as the system. (W)In this scenario, the bowling ball has the energy, therefore, work is done on the floor. As the floor receives energy, it would have a positive work. Hence, the value of w is positive.

Person rolls a bowling ball across the floor, where the person is defined as the system. (w)In this scenario, the person has the energy. Therefore, the work is done on the bowling ball. As the bowling ball receives energy, it would have a negative work. Hence, the value of w is negative.

An ice pack is placed on a person's sore back, where the ice pack is defined as the system. (q)In this scenario, the transfer of heat occurs from a hot object (person's back) to a colder object (ice pack). As the heat transfer occurs from the person's back, which is the system, it would have a negative value of q. Hence, the value of w or q is positive or negative depending on the situation.

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When designing a synthesis of each compound from alcohols having four or fewer carbons as the only organic starting materials, the following are the steps you can follow:

Step 1: Select the appropriate inorganic reagents. These may include reagents such as NaOH, H2SO4, H2O2, Na2Cr2O7, KMnO4, HNO3, H2O, etc. They are utilized in a range of reactions to facilitate the formation of the targeted compounds.

Step 2: Determine the type of reaction to carry out based on the targeted compound and the reagents utilized. Examples of reactions that may be used include dehydration, oxidation, and reduction.

Step 3: Begin the reaction by mixing the appropriate quantity of the reactants in a beaker or other appropriate container. The mixture is usually stirred and heated to facilitate the reaction.

Step 4: Monitor the reaction's progress using appropriate techniques such as chromatography or spectroscopy.

Step 5: Isolate the product from the reaction mixture by filtration or other suitable methods. The above steps can be utilized to synthesize compounds from alcohols having four or fewer carbons as the only organic starting materials.

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Answer:

Thermal energy is the internal energy of molecules. When we heat an atom then the atoms start to vibrate more rapidly. More is the size of atom, more easily the particles can vibrate. Thus, greater is the size of atom greater will be it is thermal energy.

Whereas particles in a small atom will vibrate with difficulty as less space is available for movement. Therefore, less heat will be enough for collision pf particles. As a result, thermal energy will be less.

Thus, we can conclude that the statement if both objects are at the same temperature, the thermal energy of object A is the same as the thermal energy of object b is false.

Answer:

C2H5OH +3O2 = 2Co2+ 3H2O

Explanation:

The balanced chemical equation is C2H5OH + 302 → 3H20 + 2CO2.

A balanced chemical equation is one in which the count of atoms in all of the molecules is equivalent on both sides of the equation. The balancing of a particular chemical equation is governed by the Law of Conservation of Mass.

Balancing chemical equation is shown as below:

It can be seen that the count of carbon atom in left side 2 on the other hand the count of carbon in right side only one. By multiply with 2 in right side of the reaction , equation will be balanced.

Therefore, the balanced chemical equation is C2H5OH + 302 → 3H20 + 2CO2.

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Answer:

yolo go with C

Explanation:

Answer:

for the eqn it should be 2NaCl----> 2Na+ Cl2

Answer:

2, strong acid

Explanation:

Data obtained from the question. This includes:

[H+] = 0.01 M

pH =?

pH of a solution can be obtained by using the following formula:

pH = –Log [H+]

pH = –Log 0.01

pH = 2

The pH of a solution ranging between 0 and 6 is declared to be an acid solution. The smaller the pH value, the stronger the acid.

Since the pH of the above solution is 2, it means the solution is a strong acid.

Answer:

In chemistry: a pure substance consists only of one element or one compound. a mixture consists of two or more different substances, not chemically joined together.

Hope this helps :)

a group electrons is called electon pair.

Answer:

B. electron pairs.

Explanation:

The enthalpy of the reaction as written is approximately 239,306 J/mol.

To calculate the enthalpy of the reaction, we need to use the heat released (2330 J) and the amount of sodium reacted (0.224 g) to determine the heat released per mole of sodium reacted.

The molar mass of sodium (Na) is 22.99 g/mol.

First, we need to calculate the number of moles of sodium reacted:

Number of moles of Na = Mass of Na / Molar mass of Na

Number of moles of Na = 0.224 g / 22.99 g/mol ≈ 0.00974 mol

Next, we can calculate the enthalpy change (ΔH) per mole of sodium reacted:

ΔH = Heat released / Number of moles of Na

ΔH = 2330 J / 0.00974 mol ≈ 239306 J/mol

Enthalpy (H) is a thermodynamic property that represents the total heat content of a system at constant pressure. It includes the internal energy of the system plus the product of pressure and volume. Enthalpy is often used to describe heat changes in chemical reactions, where the difference in enthalpy between the reactants and products determines whether a reaction is exothermic (releases heat) or endothermic (absorbs heat). Enthalpy is typically measured in joules (J) or kilojoules (kJ).

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Answer:

Organisms that belong to the same species, form groups, and interact together in the same environment make the level of the population whereas a community has groups of different species living together in an environment. Species are the group of individuals that are genetically related to each other.

Answer:

103.2 g of AgCl can be made in the reaction

Explanation:

We state the reaction to analyse the problem:

AlCl₃ + 3AgNO₃ →  3AgCl  +  Al(NO₃)₃

We convert the mass of chloride to moles:

32 g . 1mol/ 133.34g = 0.240 moles

Ratio is 1:3. See the stoichiometry

1 mol of aluminum chloride can produce 3 moles of AgCl

Then, 0.240 will produce (0.240 . 3)/1= 0.720 moles.

We convert the moles to mass: 0.720 mol . 143.32g/1mol = 103.2 g