Is water made of plant cells or animal cells
•plant
•animals
•niether

The compound C4H6O4 can be classified as a dicarboxylic acid. In this case, the presence of four carbon atoms (C4) indicates that it is a relatively larger molecule.

The molecular formula also contains six hydrogen atoms (H6) and four oxygen atoms (O4). The presence of oxygen and carbon atoms suggests the possibility of carboxyl groups (-COOH) in the compound. Carboxyl groups are functional groups consisting of a carbonyl group (C=O) and a hydroxyl group (-OH) attached to the same carbon atom.

Since the compound contains four oxygen atoms, it is possible that it contains two carboxyl groups. A compound with two carboxyl groups is classified as a dicarboxylic acid. Dicarboxylic acids are organic compounds that have two carboxyl functional groups.

They are characterized by their ability to donate two protons (H+) and act as acids. Therefore, based on the molecular formula C4H6O4, the compound is classified as a dicarboxylic acid.

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1. Water begins to boil - Endothermic

2. Fireworks explode - Exothermic

3. Sweat evaporates cooling your skin - Endothermic

4. Water begins to freeze into ice - Exothermic

5. You ignite your homework assignments once the year is over - Exothermic

6.Sunrays burn your skin - Exothermic

7.Cellular respiration - Exothermic

Exothermic and endothermic refer to two types of chemical reactions or physical processes that release or absorb energy, respectively.

Exothermic reactions release energy in the form of heat, light, or sound. When these reactions occur, they produce a net release of energy into the surroundings, which can often be felt as an increase in temperature. Examples of exothermic reactions include combustion, oxidation, and many types of explosions.

Endothermic reactions, on the other hand, absorb energy from the surroundings in order to proceed. These reactions typically feel cold to the touch and require energy to be added to the system in order to occur. Examples of endothermic reactions include melting, evaporation, and many types of chemical reactions that require heat to be added in order to proceed.

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There are three examples of thermal energy transfer in the scenario:

Thermal energy is a type of energy that is associated with the temperature of an object or system. It is the sum total of the kinetic energy of the particles in a substance, such as atoms or molecules, that are in motion and have thermal vibrations.

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Answer: The relationship between heat and thermal insulators is that if the material is more insulator then the heat transfer will be least.

The empirical formula of the compound with 14.3% Nitrogen, 4.1% Hydrogen, and 81.6% Bromine would be \(NH_4Br\).

The compound contains 3 atoms of different elements according to the following percentage:

Let's find the mole equivalent of each percentage:

Divide by the smallest mole:

Thus, the empirical formula of the compound is \(NH_4Br\).

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The reproduction of hydra is through budding process from its body. This process of regeneration is called mitosis.Mitosis is a type of cell division process. Thus option A is correct.

Mitosis is a cell division process in which one cell produces two identical daughter cells. The term mitosis means the duplication of the genetic material chromosomes with the exact gene information.

Different stages in mitosis together is called mitotic phases. Hydra is an invertebrate freshwater organism. Hydra has a translucent tubular body which can be elongated and contracted.

Hydra is classified to the phylum hydrozoa. It have a regeneratable head. The reproduction of hydra is through budding. A small bud first projects from its tubular body which then develops and emerges out by cell division.

The divided daughter hydra will grow as a matured hydra. This overall budding process takes places through mitosis. Hence, option A is correct.

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Answer:

air,water,rocks,and the ibex

Explanation:

these are the non living things I'm pretty sure

If you take several measurements, then your data will be precise if the measurements are consistently close to each other.

Precision is a measure of the reproducibility of a set of measurements. If a set of measurements is precise, it means that the measurements are similar to each other and give a reliable indication of the true value of the quantity being measured. On the other hand, if the measurements are widely spread out and inconsistent, they are considered imprecise.

Thus, to ensure precision in measurements, it's important to use accurate instruments, take multiple measurements, and use statistical methods to analyze the data and identify any outliers or errors. It's also important to follow standard procedures and protocols for making measurements to minimize any sources of variability.

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Answer:

Explanation:

ABC Powder: sprays a very fine chemical powder. This acts to blanket the fire and suffocate it. Class A, B, C fires

Carbon dioxide: extinguishes CO2. By doing so, it removes oxygen from the fire, effectively suffocating it of oxygen. Class B fires

Foam: spray a type of foam that expands when it hits the air and blankets the fire. This prevents the vapors from rising off the liquid to feed the fire, thus starving it of fuel. Class A and B

Water: releases microscopic water molecules that fight the fire on a variety of levels. the level of oxygen in the air is decreased, which helps to suffocate the fire. Class: most all

also, your fire classes:

Class A: freely burning, combustible solid materials such as wood or paper

Class B: flammable liquid or gas

Class C: energized electrical fire (energized electrical source serves as the ignitor of a class A or B fire – if electrical source is removed, it is no longer a class C fire)

Class D: metallic fire (titanium, zirconium, magnesium, sodium)

Class K: cooking fires – animal or vegetable oils or fats

The relative molecular mass of the gas​ : 64 g/mol

Given

Helium rate = 4x an unknown gas

Required

The relative molecular mass of the gas​

Solution

Graham's Law

\(\tt \dfrac{r_1}{r_2}=\sqrt{\dfrac{M_2}{M_1} }\)

r₁=4 x r₂

r₁ = Helium rate

r₂ = unknown gas rate

M₁= relative molecular mass of Helium = 4 g/mol

M₂ = relative molecular mass of the gas​

Input the value :

\(\tt \dfrac{4r_2}{r_2}=\sqrt{\dfrac{M_2}{4} }\\\\16=\dfrac{M_2}{4}\\\\M_2=64~g/mol\)

The boiling point of water is 100.0 °C, the boiling point of the solution will be : 101.49 °C.The correct answer is option (a) 100.00049 °C.

Ideal Solution : An ideal solution is a homogeneous mixture of two or more components that obeys Raoult's law, which states that each component's vapor pressure is proportional to its mole fraction.The boiling point of a solution depends on the solvent's properties and the solute's concentration. It's dependent on the mole fraction of the solvent and solute, as well as the total concentration of the solution. The change in boiling point of a solution is given byΔTb = Kb × m × i, whereKb = ebullioscopic constant, m molarity of the solution, and i = van't Hoff factor.Assuming that the solution's behavior is ideal, we may use the molality of the solution to compute the boiling point elevation of the solution.The molality of the solution is given by the following formula:m = (n₂ / m₂) ÷ (n₁ / m₁), where n is the number of moles, m is the mass, and the subscripts 1 and 2 refer to water and non-volatile solute sucrose, respectively.The molar mass of sucrose (C₁₂H₂₂O₁₁) is342.3 g/mol; therefore, the number of moles of sucrose is115.0 g ÷ 342.3 g/mol = 0.335 mol.m₁ = mass of water = 350.0 g, and m₂ = mass of sucrose = 115.0 g, as given in the problem.Therefore, the molality of the solution is given by:m = (0.335 mol / 0.115 kg) ÷ (1 mol / 1 kg) = 2.91 mol/kg.Substituting these values in the formula for ΔTb, we get:ΔTb = Kb × m = 0.512 °C m⁻¹ × 2.91 mol/kg = 1.49 °C.100.0 °C + 1.49 °C = 101.49 °C.

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Answer:

IL Read the story carefully then answer the following questions below Wish Upon Star were watching the stars as they competed on which star was the brightest Two brothers, Danny and Joey, were lying on the soil grass outside their house. They "Have you seen a shooting star?"asked Danny Not yet Mother told me to make a wish when I see one." answered Joey Funny! But Father said that, too."said Danny Suddenly, they saw a shooting star on the sky Questions Note: Write your answer in complete sentence I. What were Danny and Joey doing outside.?2 What kind of night was it when the story happened? 3. Did the brothers make a wish when they saw the shooting star? What made you say?4. Is the title of the selection a suitable one? Why? or Why not? appears in every and thing people note 5. What do you expect to happen when you wish upon a star

Using the molecular weight a calculator or the molar mass of CH₃CH₂OH, 1 gram Ethanol = 0.021706834440237 mole.

Ethanol is an renewable transportation fuel that is produced in the United States. Ethanol contributes to lower emissions when used in low-level blends like E10 10% ethanol, 90% fuel), E15 10.5% in 15% ethanol as a or E85 flex boost)—a gasoline-ethanol mix containing 51% to 83% a solution of depending on geography or season.

Ethanol (CH₃CH₁OH) is a chemical compound (alcohol) that contains the group hydroxyl (OH) bonded to a the carbon atom. Ethanol is made by fermenting crop residue such as sugar cane, maize, and manioc.

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The reaction order and specific reaction rate constant can be determined by performing the kinetics experiment on irreversible polymerization A. Kinetic experiments can be used to investigate the rate and mechanism of chemical reactions. Chemical kinetics is the study of chemical reactions' speed and pathway.

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Answer:

(A) Nickels and pennies

Answer:0.0056 Liters H2O2

Explanation:

Liters = (1ml/1.44 g) X 8.08 g = 5.611 mL = 0.0056 Liters

Answer:bob

Explanation: owa owa

Answer:

They are slowly moving further apart from each other.

Explanation:

In the first picture, from 135 Million Years Ago, the continents are extremely close together. Looking at the present picture, our continents are much more spread out. These pictures prove that over all these million years, our continents are slowly drifting apart.

Answer:

\(m_w=439.2g\)

Explanation:

Hello!

In this case, since the by-mass percent of a solution is a measure of the mass of the solute over the mass of the solution:

\(\%m/m=\frac{m_{solute}}{m_{solution}} *100\%\)

As we know the mass of the solution and the by-mass percent, we can compute the mass of glucose in the 480 g of solution:

\(m_{solute}=\frac{\%m/m*m_{solution}}{100\%}\)

Thus, by plugging in the data, we obtain:

\(m_{solute}=\frac{8.5\%*480g}{100\%}=40.8g\)

Finally, since the solution is made up of glucose and water, we compute the mass of water as follows:

\(m_w=m_{sol}-m_{solute}=480g-40.8g\\\\m_w=439.2g\)

Best regards!

b. testing the hypothesis

The decomposition of aspirin (acetylsalicylic acid,\(C_{9} H_{8} O_{4}\)) can occur through the hydrolysis reaction, resulting in the formation of acetic acid (\(CH_{3} COOH\)) and salicylic acid (\(C_{7} H_{6}O_{3}\)).

The decomposition of aspirin (acetylsalicylic acid, \(C_{9} H_{8} O_{4}\)) can occur through the hydrolysis reaction, resulting in the formation of acetic acid (\(CH_{3} COOH\)) and salicylic acid (\(C_{7} H_{6}O_{3}\)). To determine the moles of each product formed, we need to consider the balanced chemical equation for the reaction:

\(C_{9} H_{8} O_{4} = > C_{7} H_{6}O_{3} +CH_{3} COOH\)

From the equation, we can see that for every 1 mole of aspirin, 1 mole of salicylic acid and 1 mole of acetic acid are produced.

Therefore, the moles of salicylic acid and acetic acid formed will be equal to the number of moles of aspirin that decomposes. If we know the amount of aspirin in moles, we can directly calculate the moles of each product based on stoichiometry.

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Answer: 7 atoms

Explanation:

Answer:

5 atoms

Explanation:

Pb= 1 atom

N = 1 atom

O = 3 atoms

Thus, total no. of atoms are 5

Answer:

D

Explanation:

When Na and Cl react, Na gives up one electron to Cl to fill both their valence electron shells. Both atoms are more stable, chlorine gains the electrons, and chloride is the anion.

Answer: D. After reacting, each ion has a stable octet. (For Gradpoint)

Explanation:

Answer:

Explanation:

The subscripts in a formula determine the ratio of the moles of each element in the compound. To convert this formula to the empirical formula, divide each subscript by 2. This is similar to reducing a fraction to its lowest denominator.

Answer:

They Killed All Of Them Because The Other Party (missionares) couldn't understand what the other meant and so they fight And The Party( Missionares) Are Only That Time Is If Someone Invaded There Land It Means War of Dispute.

Answer:

This process, which is the opposite of vaporization, is called condensation. As a gas condenses to a liquid, it releases the thermal energy it absorbed to become a gas. During this process, the temperature of the substance does not change. The decrease in energy changes the arrangement of particles.

The final pressure of the gas is obtained as 4.80 atm.

We know that the root mean square speed of the gas would depend on the temperature of the molecules of the gas. Here we are told that the root mean square speed of the gas molecules is doubled and it means that the temperature was also doubled.

We have;

P1/T1 =P2/T2

2T1 = 2P1

The final pressure would  be 2(2.40)atm = 4.80 atm

Thus we ought to have the temperature at the end as 4.80 atm from the calculation that has been done.

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ANSWER

the final temperature of the gas is 25.4K

EXPLANATION

Given that;

The initial temperature of the gas is 148 degrees Celcius

The initial volume of the gas is 4.8L

The final volume of the gas is 0.29L

Follow the steps below to find the final temperature of the gas

In the given data, the pressure of the gas is fixed. So, apply Charles' law to find the final temperature of the gas

Step 1; State Charles's law

Charles' law states that the volume of a given gas is directly proportional to its temperature provided the pressure of the gas remains constant.

Mathematically,

Step 2; Convert the temperature to degrees Kelvin

Step 3; Substitute the given data into the formula in step 1

Therefore, the final temperature of the gas is 25.4K

Answer:

There are 6

Explanation:

The significant figures in that number are  5 4 0 0 4 7

Hope this helps:)

We know that

v1 = k[CHCl3][Cl2]

If the concentration of CHCl3 is increased by a factor of five while the concentration of Cl2 is kept the same, then :

v2 = k[5CHCl3][Cl2]

v2 = 5(k[CHCl3][Cl2])

v2 = 5v1

The rate will increase five times

To solve this we need to have knowledge of experimental rate law which relates the rate to the concentration raise to some power. The  rate of reaction will increase by a factor of 5.

A rate law represents the rate of a reaction . According to this rate is directly proportional to  the concentration of reactants. There is another expression of rate law which is integrated rate law which is just opposite of differential rate law.

The experimental rate law for given reaction is given as:

Rate = k[CHCl₃][Cl₂]

If the concentration of CHCl₃ is increased by a factor of five while the concentration of Cl₂ is kept the same, the rate will be

[CHCl₃]=[5CHCl₃]

Substituting in the above equation we get

Rate = k[5CHCl₃][Cl₂]

Rate =5 k[CHCl₃][Cl₂]

Rate = 5 times the original rate

Therefore, the rate of reaction will increase by a factor of 5.

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