Explain the relationship between thermal energy and temperature. How does thermal energy impact temperature?

(Use scientific language)

The pH at the equivalence point of a weak base-strong acid titration can be determined using the Henderson-Hasselbalch equation.

In this case, the weak base is sodium hypochlorite (NaOCl), and the strong acid is hydrochloric acid (HCl). Given that 20.00 mL of NaOCl requires 28.30 mL of 0.50 M HCl, we can calculate the moles of HCl used. The balanced chemical equation for the reaction between NaOCl and HCl is: NaOCl + HCl → HClO + NaCl. Since the molar ratio between NaOCl and HCl is 1:1, the moles of HCl used is equal to the moles of NaOCl used. By dividing the moles of HCl used by the total volume of the NaOCl solution (20.00 mL), we can determine the concentration of HCl. Next, we can use the dissociation constant (Ka) of HClO (the conjugate acid of NaOCl) to calculate the concentration of HClO at the equivalence point. From the balanced chemical equation, we know that one mole of NaOCl reacts with one mole of HCl to form one mole of HClO. Therefore, the concentration of HClO is equal to the concentration of HCl at the equivalence point. Finally, using the Henderson-Hasselbalch equation, we can calculate the pH at the equivalence point by plugging in the values for the concentration of HClO and the Ka of HClO. It is important to note that in this specific case, the concentration of HClO will be very low due to the weak acid nature of HClO. Consequently, the pH at the equivalence point will be acidic.

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The effect of changing the temperature of the nitric acid on the rate of reaction. (Include measuring the volume of carbon dioxide gas produced) is Rate of reaction increases.

When we increase the temperature of the reaction the rate of reaction also increases. With the increase of the temperature of the nitric acid HNO₃, the rate of the reaction also increases as the molecule moves faster. Arrhenius equation given as :'

k = Ae^(Ea / RT)

or, ln k = -Ea /RT + ln A

where,

k = rate constant

A = Arrhenius constant

Ea = activation energy

R = gas constant

T = temperature

Thus, The effect of changing the temperature of the nitric acid on the rate of reaction. (Include measuring the volume of carbon dioxide gas produced) is Rate of reaction increases.

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Answer: 9000 - 1 significant figure

Explanation: Since you are multiplying, the number with the least amount of significant figures determines the number of significant figures in the answer. The number 9 has 1 significant figure and 1025 and has 4 significant figures so 9 has the fewest significant figures,  meaning your answer will be 1 significant figure.

The limiting reagent in this reaction is H2, there is only 3.5 L of it available to react with the 3.5 L of N2. The excess reagent is N2. The reaction produces 2 L of NH3, so the amount after the reaction is 1.5 L of N2.

Limiting reagents are substances in a chemical reaction which are completely consumed before other reactants in the reaction. They are also known as limiting reactants or limiting agents. When a reaction occurs, the limiting reagent is the one that runs out first, thus limiting the amount of product that can be produced. In a balanced chemical equation, the amounts of each reactant should be equal. However, in reality, it is often not the case as the amounts of each reactant may differ slightly. Therefore, it is important to identify the limiting reagent in order to determine how much product can be produced.

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Freezing point depression; Density; Boiling point elevation; Vapor pressure lowering; Color

define boiling point ?

The boiling point is the temperature at which a liquid begins to boil and convert into a vapor. At the boiling point, the vapor pressure of the liquid is equal to the atmospheric pressure and the liquid can no longer be contained within the surface. The boiling point of a liquid can be affected by a number of factors, including pressure, temperature, and the presence of solutes. Generally, an increase in pressure will cause a corresponding increase in the boiling point, while an increase in temperature will cause a decrease in the boiling point. The addition of solutes to a liquid can also cause a decrease in the boiling point, a phenomenon known as boiling point elevation.

Freezing point depression - Colligative property

Density - Non-colligative property

Boiling point elevation - Colligative property

Vapor pressure lowering - Colligative property

Color - Non-colligative property

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Each cell has 23 pairs of chromosomes.

The nucleus of each cell contains the chromosome, and it can be defined as packaged into thread-like structures. Each chromosome is structurally composed of DNA that is tightly coiled around special proteins. The chromosomes are typically not visible under the microscope.

All living organisms possess chromosomes. The human body has 23 pairs of chromosomes. Out of the 23 pairs of chromosomes, 22 pairs of these chromosomes are known as autosomes.

These are identical in both males and females while the 23rd pair of chromosomes are known as allosomes. This pair differs between the sexes. Females have two copies of the “X” chromosome while males have one “X” and “Y” chromosome.

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Answer:

nahhhhhhhhhhhhhhhhhhhhhhh xD

have a good day :)

Explanation:

WHY ONLY GIRLS? maybe find something better to do. so disgusting.

The crash where the cone experience a stronger force is option D because: Crash 1: the force on the black hockey puck was stronger in this crash, so the force on the cone was also stronger.

The ball is drawn back to Earth by gravitational force. The ball returns to Earth as a result of friction. The ball is forced back toward Earth by magnetic force.

A puck's velocity changes when a player makes contact with it when it is still. He causes the puck to speed up, in other terms. The hockey stick's force, which causes the acceleration, is responsible. The velocity grows as long as this force is in motion.

Therefore, the force applied to an object must be larger than what is required for a progressive slowing down if the object must be slowed down quickly. For instance, a bicycle's brakes will slow or stop it more quickly the more force is given to it.

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See full question below

After hockey practice, Carissa and Keenan were playing a game where they were pushing some objects to get them to crash. They were using a cone and two different pucks—a black one with more mass for Crash 1 and a blue one with less mass for Crash 2. They want to know what happened to the cone.

Use the information from the diagram to answer.

In which crash did the cone experience a stronger force? How do you know?

answer choices

There was no force on the cone. In both crashes, only the hockey puck experienced a force.

The diagram doesn’t tell you anything about the force on the cone. It only gives information about the force on the pucks.

It was the same force in both crashes; the hockey puck changed speed by the same amount in each crash, so the force on the cone was the same each time.

Crash 1; the force on the black hockey puck was stronger in this crash, so the force on the cone was also stronger.

A) 4400 kj of heat released into surroundings

Reaction

C3H8(g) + 5 O2(g) → 3 CO2(g) + 4 H2O, the ∆H is –2200 kJ

Reaction exothermic( ∆H=-, released heat to surrounding) and for combustion of 1 mole of C3H8

So for two moles of C3H8, the enthalpy :

\(\tt -2200\times 2=-4400~kJ\)

a) Rightward shift: 3 shifts. Leftward shift: 4 shifts b) Rightward shift: 1. Leftward shift: c) Rightward shifts: 1 shifts. Leftward shifts: 1, in Equilibrium condition.

a.
- Increase D: rightward shift
- Increase E: rightward shift
- Increase F: leftward shift
- Decrease D: leftward shift
- Decrease E: leftward shift
- Decrease F: rightward shift
- Triple D and reduce E to one third: leftward shift
- Triple both E and F: no shift (because the stoichiometric coefficients are the same for both reactants and products)

b.
- Add more X: no shift (because the reaction is at equilibrium and the concentrations of the reactants and products are already balanced)
- Remove some X: leftward shift
- Double the volume: leftward shift
- Halve the volume: rightward shift

c.
- Increase the temperature: leftward shift
- Decrease the temperature: rightward shift (because according to Le Chatelier's principle, a change in temperature will cause the equilibrium to shift in the direction that absorbs or releases heat)

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Answer:

C- transforemed or changed

Explanation:

matter can be changed by application of heat or cold

The natural abundance of 10B = 80.09 % and The natural abundance of 11B = 19.91%

There are two naturally occurring isotopes of boron.

The mass of 10B is 10.0129 u.

The mass of 11B is 11.0093 u.

Average atomic mass of Boron = 10.811

10B has an abundance of X %

11B has an abundance of Y %

X+ Y = 1

X = 1 - Y

10.811 = 10.0129 x (1 - Y) + 11.0093*Y

10.811 = 10.0129 - 10.0129Y + 11.0093Y

0.7981 = 0.9964Y

Y = 0.8009 = 80.09 %

X = 1.0 - 0.8009 = 0.1991 = 19.91%

10.0129*0.1991+ 11.0093*0.8009 = 1.994 +8.817= 10.811

The natural abundance of 10B = 80.09 %

The natural  abundance of 11B = 19.91%

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The periodic table is an arrangement of the elements in order of increasing reactivity. The elements that are more reactive are found at the left hand side of the table among the metals. The reactive non metals are found at the right hand side of the table.

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a) Subscript (s) means solid or precipitate.

b) CdSO₄ (aq) → Cd²⁺ (aq) + SO₄²⁻(aq) and K₂S(aq) → 2K⁺ (aq) + S²⁻ (aq). There are 4 types of ions present in the solution Cd²⁺, SO₄²⁻, 2K⁺ and S²⁻.

c) Yellow to orange color precipitate will be seen after this reaction.

d) The reaction is known as double displacement or a precipitation reaction.

e) 2K⁺ and SO₄²⁻ are the ions still present in the solution.

The detailed answer to the questions related to the given equation are as follows:

Given equation: CdSO₄ (aq) + K₂S (aq) → CdS (s) + K₂SO₄ (aq)

a) The subscript (s) means "solid." In this reaction, CdS is a solid product formed by the reaction of aqueous CdSO₄ and K₂S.

b) When cadmium sulfate (CdSO₄) dissolves in water, it dissociates into ions:

CdSO₄ (aq) → Cd²⁺ (aq) + SO₄²⁻ (aq)

Similarly, when potassium sulfide (K₂S) dissolves in water, it dissociates into ions:

K₂S (aq) → 2K⁺ (aq) + S²⁻ (aq)

In this solution, there are four types of ions are present: Cd²⁺, SO₄²⁻, 2K⁺, and S²⁻.

c) Cadmium sulfide (CdS) has a yellow to orange color and is insoluble in water. When you mix cadmium sulfate (CdSO₄) and potassium sulfide (K₂S), you would expect to see a yellow to orange precipitate forming, which is cadmium sulfide (CdS).

d) The name for this type of reaction is a double displacement reaction or a precipitation reaction.

e) After the reaction, the soluble product potassium sulfate (K₂SO₄) is formed, which dissociates into ions in the solution. The ions still present in the solution after the reaction are: 2K⁺ (aq) + SO₄²⁻ (aq).

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Answer:

Explanation:

Answer:

Most animals have skeletons that give those animals their shape. You can identify most of those animals by those same skeletons.

Explanation:

The passage

Answer:

394.68 J

Explanation:

The amount of heat gained or lost by an object when its temperature changes can be calculated by using the formula:

\(\boxed{\sf c = \dfrac{Q}{m \cdot \Delta T}}\)

where:

The initial temperature of the marble was 22°C and its final temperature is 45°C. Therefore, the change in temperature, ΔT, is:

\(\implies \sf \Delta T=45^{\circ}C-22^{\circ}C=23^{\circ}C\)

Therefore, the values to substitute into the formula are:

Substitute these values into the formula:

\(\implies \sf \dfrac{0.858\;J}{g \cdot \!\!\!\!\phantom{2}^{\circ}C}}=\dfrac{Q}{20.0\;g \cdot 23 ^{\circ}C}\)

\(\implies \sf Q=\dfrac{0.858\;J \cdot 20.0\;g \cdot 23^{\circ}C}{g \cdot \!\!\!\!\phantom{2}^{\circ}C}}\)

\(\implies \sf Q=0.858\;J \cdot 20.0 \cdot 23\)

\(\implies \sf Q=394.68\;J\)

Therefore, 394.68 J of heat is required to raise the temperature of 20.0 g of marble from 22°C to 45°C.

\(\blue{\huge {\mathrm{SPECIFIC \; HEAT \; CAPACITY}}}\)

\(\\\)

\({===========================================}\)

\({\underline{\huge \mathbb{Q} {\large \mathrm {UESTION : }}}}\)

\({===========================================}\)

\( {\underline{\huge \mathbb{A} {\large \mathrm {NSWER : }}}} \)

\({===========================================}\)

\({\underline{\huge \mathbb{S} {\large \mathrm {OLUTION : }}}}\)

The formula for calculating the amount of heat required to raise the temperature of an object is:

where

Using the given values, we can plug them into the formula:

\(\begin{aligned}\sf Q& =\sf 20.0\: g \cdot 0.858\: J/g^{\circ}C \cdot (45^{\circ}C - 22^{\circ}C)\\& =\sf 20.0\: g \cdot 0.858\: J/g^{\circ}C \cdot 23^{\circ}C \\& = \boxed{\bold{394.68\: J}}\end{aligned}\)

Therefore, the amount of heat required to raise the temperature of 20.0 g of marble from 22°C to 45°C is 394.68 Joules.

\({===========================================}\)

\(- \large\sf\copyright \: \large\tt{AriesLaveau}\large\qquad\qquad\qquad\qquad\qquad\qquad\qquad\tt 04/02/2023\)

The set B gives the set of particles that experience stronger attraction because the charges are greater. Therefore, option B is correct.

Electric charge is the physical property of matter. Charges makes to experience a force when placed in an electromagnetic field.

Positive and negative electric charges are the two types of charges commonly transported by charge carriers, protons and electrons. Energy is make up by the movement of charges.

In set B there are +4 and -4 two charges are present so, they give stronger attraction that set A.

Thus, option B is correct.

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A. Absorption. Both processes are relatod to the way drugs are absorbed into the system.

Based on the results obtained, the sample with the shortest time taken for the color change to occur contains the largest number of carbon to carbon double bonds.

What is Saturated Fat?

Saturated fat is a type of fat in which all the carbon atoms in the fatty acid chains are bonded to hydrogen atoms, leaving no double bonds between the carbon atoms. This results in a straight and rigid molecular structure that allows the fat molecules to pack tightly together, leading to a solid or semi-solid consistency at room temperature. Saturated fats are commonly found in animal products, such as meat and dairy, as well as in some plant-based sources like coconut and palm oil. A diet high in saturated fats has been linked to an increased risk of heart disease and other health problems.

The sample with the largest number of carbon to carbon double bonds will react the fastest with the bromine water, resulting in the quickest color change from orange to colorless. Therefore, the sample with the shortest time taken for the color change to occur will contain the largest number of carbon to carbon double bonds.

Therefore, the sample that contains the most carbon to carbon double bonds can be determined by comparing the times taken for the color change to occur in each sample.

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Answer:

D. The change in velocity divided by the time during which the change occurs.

Explanation: I took the quiz on Accelerate and it was correct

Answer:

D. The change in velocity divided by the time during which the change occurs.

Explanation:

Answer:

\(\boxed{CH_{4}+O_2 --> CO_2 + H_2O}\)

Explanation:

Step 1. Methane's formula is \(CH_4\).

Step 2: Oxygen is a diatomic molecule (it exists bonded to itself for stability purposes), so by itself in chemical equations, it is written as \(O_2\).

Step 3: Carbon dioxide is the molecular compound of one atom of carbon and two atoms of oxygen → \(CO_2\).

Step 4: Water is the common name of the compound of two hydrogen atoms and one oxygen atom → \(H_2O\).

Step 1: Use the determined formulas for the reactants and plug them into the equation. We are told that methane burns in oxygen -- hinting at a combustion reaction. Therefore, we may infer that these are the reactants that yield the products.

Skeleton equations are written with the reactant(s) on the left -- if there are several, they are separated by an addition symbol (+).

With this information, we may begin our equation: \(CH_4 + O_2\), where \(CH_4\) is methane and \(O_2\) is the diatomic molecule of oxygen.

Step 2: Use the determined formulas for the products and plug them into the equation. We are told that the methane burns in oxygen to produce carbon dioxide and water. Hence, we can separate these two as we did with the reactants.

Now, our products side of the reaction will look like this: \(--> CO_2 + H_2O\), where \(CO_2\) is carbon dioxide and \(H_2O\) is water.

Step 3: Write the final equation. All you must do after determining both sides of the equation is simply push them together. Place the reactant side of the equation on the left and the product side of the equation on the right.

This gives us our final equation, \(\boxed{CH_4 + O_2 --> CO_2 + H_2O}\).

Because the problem asks for the unbalanced equation, we do not need to take any further steps of balancing the equation.

Answer:

I don't no sorry. ਕਿਉੁਂਕਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ ਸਤਿ 478figxigxurRyyv ਸ੍

Answer:

D in addition to the original sample. In a file cabinet, she finds a paper labeled "Electrochemistry Activity" which lists five metals: zinc, aluminum, magnesium, silver and tin She is not able to find anything that identifies which metals correspond to which letters. She makes some quick observations, summarized below.

Explanation:

Among the bond ratings provided, Baa1 has the highest yield. The bond ratings provided are based on the creditworthiness and risk associated with the issuer.

Generally, higher-yielding bonds indicate higher risk, which is reflected in lower credit ratings. Baa2, Baa3, and BBB all have lower credit ratings compared to Baa1, indicating a higher level of risk and, therefore, potentially higher yields. Key Learnings. Junk bonds, often known as high-yield bonds, are corporate financial securities that provide interest rates above those of investment-grade bonds. Low credit ratings, such as below BBB- from Standard & Poor's and Fitch or below Baa3 from Moody's, are typical of high-yield bonds.

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Answer:

false

Explanation:

All living things use cellular respiration to turn organic molecules into energy. Cellular respiration is the chemical process of breaking down food molecules in order to create energy in the form of adenosine triphosphate (ATP). ... This is called aerobic respiration.

Cellular respiration takes place in all living organism despite the level of organism and produces carbon dioxide and water.

Cellular respiration is the process of breaking food or glucose by the action of biological catalysts to form carbon dioxide and water. This process goes through several stages including some electron transport chains

There are both aerobic and anaerobic respiration. Aerobic respiration takes place in the presence of oxygen whereas anaerobic respiration needs no oxygen.

Every living organism consume food and digest and from the food the cell makes energy by cellular respiration. Hence, the fact that all living organism do cellular respiration is true.

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Answer:

The energy consumed by animals in the form of glucose is conserved because it is transformed into chemical energy as carbon dioxide is produced during respiration.

Explanation:

There's no diagram....but I kinda figured it from the description.

The best explain at location F is the energy consumed by animals in the form of glucose is conserved because it is transformed into chemical energy as carbon dioxide is produced during respiration.

During aerobic cellular respiration, glucose reacts with oxygen, forming ATP ( Adenosine triphosphate) that can be used by the cell. Carbon dioxide and water are created as byproducts. The overall equation for aerobic cellular respiration is: In cellular respiration, glucose and oxygen react to form ATP ( Adenosine triphosphate)

Adenosine triphosphate is an organic compound which gives energy to living organisms to drive many operations in living cells such as muscle contraction, muscle pumps, nerve impulse propagation, condensate dissolution, and chemical synthesis.

Therefore, the best explain at location F is the energy consumed by animals in the form of glucose is conserved because it is transformed into chemical energy as carbon dioxide is produced during respiration.

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Answer:

2 and 4

Explanation:

The rest of the changes are chemical. 1 has a chemical reaction happen which makes light sticks glow. 3 is because browning the meat actually causes some new compounds to form and cause caramelization.

For 2, the oxygen is simply heating up and expanding which pops the balloon. 4 is just a phase change of water vapor to liquid water.

The salts of carboxylic acids, such as sodium benzoate, are often used in foods as preservatives. The correct answer is A) preservatives.

Salts of carboxylic acids, including sodium benzoate, are commonly used as preservatives in food. They help inhibit the growth of bacteria, fungi, and other microorganisms, thus extending the shelf life of various food products. Preservatives like sodium benzoate are particularly effective in acidic environments, such as soft drinks, fruit juices, and pickled foods.

While some food additives may serve multiple purposes, in the case of salts of carboxylic acids like sodium benzoate, their primary function is as a preservative rather than a coloring, sweetener, or flavor enhancer.

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