I need help
Balance the chemical equation

Answer:

False

The ester functional group is not symbolized as R-C-R

Explanation:

The general formula of ester functional group is RCOOR′ where R represents a hydrogen atom or aryl group or an alkyl group while R' represents the alkyl group or an aryl group

Hence, the given statement is false

Answer:

they are molecules with normal bonds rather than partial bonds and can occasionally be isolated.

Explanation:

In chemistry, reaction intermediates are species that are formed from reactants and are subsequently being transformed into products as the reaction progresses. In other words,  reaction intermediates are species that do not appear in a balanced reaction equation but occur somewhere along the reaction mechanism of a non-elementary reaction. They are usually short lived species that possess a high amount of energy. They may or may not be isolated.

They are often molecular species with normal bonds unlike activated complexes that are sometimes hypervalent species.

Answer:

Hi how are you doing today Jasmine

Answer:

Explanation:

I believe its A

Answer:

Adaptation.

Explanation:

The survival characteristic adopted by Arctic foxes during different seasons is called adaptation.

The term adaptation is used to define any behavioral or physical characteristics adopted by animals to help them survive their environment. The survival characteristics in the animal can be categorized into three domains: body parts, body coverings, and behaviors. In Arctic foxes, we see body coverings survival characteristics.

Therefore, option A is correct.

Answer:

B. The cells.

call

Cells are considered the basic units of life in part because they come in discrete and easily recognizable packages. That's because all cells are surrounded by a structure called the cell membrane — which, much like the walls of a house, serves as a clear boundary between the cell's internal and external environments.

Answer:

The answer would be sand.

Explanation:

Sand is weathered down tiny pieces of rock. Sand flows down rivers to shores and slowly builds up to form beaches.

Answer:

The Answer is gonna be B sand

Answer:

0.15

Explanation:

0.5 is100% of the total mass if 70% is impure .find the mass of 70%

which is 0.35g take 0.5 -0.35 =0.15

0.15 is the mass of the pure sample

Answer:

1.62x10⁻¹² M

Explanation:

HClO₃ is a strong acid, meaning that a 6.2x10⁻³ M solution has a molar concentration of H⁺ of 6.2x10⁻³.

With the above information in mind, we can calculate the pH of the solution:

Now we can calculate the pOH of the solution, using the pH:

Finally we calculate [OH⁻], using the definition of pOH:

Answer:

thank u

Explanation:

Answer:

C i think im so sorry if is wrong

Charles' law describes the relationship between volume and temperature.

What is charles law?

Charles's law, a statement that the volume occupied by a fixed amount of gas is directly proportional to its absolute temperature.

Charles's law, a statement that the volume occupied by a fixed amount of gas is directly proportional to its absolute temperature, if the pressure remains constant

Hence,option C is correct.

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Answer:

[tex]T_2=12\°C[/tex]

Explanation:  

Hello there!  

In this case, according to the Charles' law equation which help us to understand the directly proportional relationship between volume and temperature:

[tex]\frac{T_2}{V_2}=\frac{T_1}{V_1}[/tex]  

Thus, by solving for the final temperature, T2, and making sure we use the temperatures in Kelvin, we can calculate the final temperature as shown below:

[tex]T_2=\frac{T_1V_2}{V_1} \\\\T_2=\frac{(27+273)K*19L}{20.0L}\\\\T_2=285-273\\\\T_2=12\°C[/tex]

Best regards!  

Best regards!

During the day at 27°C a cylinder with a sliding top contains 20.0 liters

of air. At night it only holds 19 liters and at that time temperature will be 12 °C.

Charles's law, a statement that the volume occupied by a fixed amount of gas is directly proportional to its absolute temperature, if the pressure remains constant.

According to Charles's law:

[tex]\frac{T_2}{V_2} = \frac{T_1}{V_1}[/tex]

Thus, by solving for the final temperature, [tex]T_2[/tex], and making sure we use the temperatures in Kelvin, we can calculate the final temperature as shown below:

[tex]T_2}= \frac{T_1 X\;V_2}{V_1}[/tex]

[tex]T_2}= \frac{(27 + 273)\; X\;19 liters}{20.0 liters}[/tex]

[tex]T_2= 12[/tex] °C

12 °C is the temperature at night.

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Answer:

60.0 mL

Explanation:

Using CAVA = CBVB

CA = 0.300M

VA = 20.0 mL

CB = 0.100M

VB = ?

VB = CAVA

CB

VB = 0.300 * 20/ 0.100

VB = 60.0 mL

Answer:

whats CH3COOH please tell me so I can answer!

Answer:

Discharge of ions during electrolysis is affected by, current apllied, the time of electrolysis, electrode type, posiiton of metal in electrochemical.

Explanation:

Answer:

So, only one electron is there with n = 0, l = 0 and its quantum set is n = 0, l = 0, ml = 0, ms = -1/2. Hope, this is helping. The maximum number of electrons that can fit inside a 'n' shell is 2n^2. So it would be 1.

Explanation:

Quantum numbers are defined as the set of four numbers with the help of which we can get complete information about the electrons in an atom. Here the term 'n' represents the principal quantum number.

The quantum number which represents the main energy level or shell in which electrons are present. It also determines the average distance of orbital or electron from the nucleus. It can have the whole number values like 1,2,3,4, ....

1. When n = 2, the maximum number of electrons present is 8. That is one 's' sub level and three 'p' sub levels. The spin of four electrons will be +1/2 and other four will be -1/2.

2. When l = 3, the possible orientations = 2l + 1 = 2(3) + 1 = 7. So the maximum number of electrons is 14.

3. The value of ml = -1 indicates only one orbital. So the maximum electrons is 2.

4. Here ml = -1, 0, 1 which shows three orbitals. So in ml = -1, there are only two electrons.

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The answer is 2Hz

To calculate frequency, divide the number of times the event occurs by the length of time.

Answer:

c: heat and erosine

Explanation:

This requires familiarity with the different theories (or concepts) of acids and bases.

On the Arrhenius concept, an acid is a substance that produces an H⁺ ion in water such that the H⁺ concentration increases, and a base is a substance that produces an OH⁻ ion in water such that the OH⁻ concentration increases.

On the Brønsted–Lowry concept, an acid is a substance that donates a proton (which is basically an H⁺ ion) in a solvent, and a base is a substance that accepts a proton in a solvent.

On the Lewis concept, an acid is a substance that accepts an electron pair in a solvent, and a base is a substance that donates an electron pair in a solvent.

The concepts become progressively broader, i.e., the Arrhenius concept is the most restrictive and the Lewis concept is the least restrictive. As a corollary, an Arrhenius acid or base is also both a Brønsted–Lowry acid or base and a Lewis acid or base, respectively; a Brønsted–Lowry acid or base is not necessarily an Arrhenius acid or base, but an Arrhenius acid or base is also a Lewis acid or base, respectively. And finally, a Lewis acid or base may not necessarily be either an Arrhenius or a Brønsted–Lowry acid or base.

So, with the above concepts in mind, we can match the statements in column A with the type of acid or base in column B:

[tex]\begin{center}\begin{tabular}{ c c } 1 & Bronsted Lowry acid \\ 2 & Bronsted Lowry base \\ 3 & Arrhenius acid \\ 4 & Arrhenius base \\ 5 & Lewis base \\ 6 & Lewis acid\end{tabular}\end{center}[/tex]

Answer:

Ingles porfavor

Explanation:

The calorimeter is used to measure the heat of the system. The enthalpy of the combustion of magnesium cannot be measured by the calorimeter as it could melt the cup.

A coffee cup calorimeter is a styrofoam cup that contains partially filled water and is dipped with a thermometer. The reaction occurs in the water of the cup and hence differs from the bomb calorimeter.

The enthalpy of combustion is rigorous which can dissolve the polystyrene cup and hence is not used. They are better insulators than a beaker. The coffee cup calorimeter is not used to measure the enthalpy of hydrogen and oxygen as they involve gases that can escape the cup.

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Answer:

D

Explanation:

A growing body of scientific evidence shows that the felling of tropical forests creates optimal conditions for the spread of mosquito-borne scourges, including malaria and dengue. Primates and other animals are also spreading disease from cleared forests to people.

Answer:

The law of conservation of energy states that the total energy is constant in any process. Energy may change in form or be transferred from one system to another, but the total remains the same.

Could you please help me with the two most recent questions of mine on my page? I will give u brainliest and 20 points! :))) X

Answer:

zygote

Explanation:

I got this online

Answer:

=> In human fertilization, a released ovum (a haploid secondary oocyte with replicate chromosome copies) and a haploid sperm cell (male gamete)—combine to form a single 2n diploid cell called the zygote.

ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ

[tex] \infty \infty [/tex]

Answer:

2.1 M

Explanation:

The dilution equation is [tex]M_{s} V_{s} = M_{d} V_{d}[/tex].

[tex]M_{s}[/tex] = the molarity of the sock solution

[tex]V_{s}[/tex] = the volume of the sock solution

[tex]M_{d}[/tex] = the molarity of the diluted solution

[tex]V_{d}[/tex] = the volume of the diluted solution

The stock solution would be what is doing the diluting, so "175 mL of a 3.00 M solution". So [tex]M_{s}[/tex] = 3.00 M. Then: Converting 175 mL to liters: [tex]175 mL * \frac{1 L}{1000mL} = 0.175 L[/tex] (This is [tex]V_{s}[/tex])

And converting 250 mL KCl to liters: [tex]250 mL * \frac{1 L}{1000mL} = 0.250 L[/tex] (This will be [tex]V_{d}[/tex])

Then, we plug in our given into the dilution equation, resulting in:

[tex]3.00 M * 0.175 L = M_{d} * 0.250 L[/tex] (divide both sides by 0.250 L, in order to get [tex]M_{d}[/tex] by itself)

[tex]\frac{3.00 M * 0.175 L}{0.250 L} = M_{d}[/tex]

[tex]M_{d} = 2.1 M[/tex]

So, the molarity of 250 mL KCl made by diluting 175 mL of a 3.0 M solution would be 2.1 M (mol/L).

Hopefully this helped you understand the topic a little bit better. I just finished molarity and dilutions in Chemistry last week. Good luck!

Answer:

8 litres of SO2 will produced from 26.9L o2

Answer:

13

Explanation:

The correct answer is:

13

For an aluminum atom to have a neutral charge, 13 electrons must cancel out the positive charge from the 13 protons.

Explanation:

B) 3CuCl2+2AL..….2AlCl3+3Cu

hope it helps.

Balanced Equation:

3CuCl₂ + 2Al = 2AlCl₃ + 3Cu