When vinegar, an acid, is mixed with baking soda, a base, the reaction is similar to the reaction of Alka-Seltzer and water; a salt, water and carbon dioxide are produced. In two or more complete sentences, describe how your knowledge of balancing chemical equations can help you to determine the missing compound. Write your answer in the essay box below. NaHCO3 + HC2H3O2 ⟶ ________ + H2O + CO2

Answer:

However, carbon dioxide dissolved into the ocean causes seawater to acidify, threatening the ability of shellfish and corals to build their skeletons and affecting the health of other fish and marine species—many that are important to coastal economies and food security.

Explanation:

The powers granted to the federal government alone are known as reactant powers. These powers include the power to regulate foreign and interstate commerce, declare war, and coin money.

The other types of powers granted by the US Constitution are concurrent powers (shared by both federal and state governments) and reserved powers (reserved for the state governments). Examples of concurrent powers include the power to tax and the power to establish courts, while examples of reserved powers include the power to conduct elections and regulate intrastate commerce.

These powers are specifically given to the federal government in the United States Constitution to ensure the proper functioning of the nation. The federal government has the exclusive authority to carry out these tasks, and state governments do not have the ability to exercise these powers.

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The empirical formula of ascorbic acid is C6H8O6.

To calculate the empirical mass of a compound from the mass percentage of each element, the value of the molar mass of each element is used, which in this case corresponds to:

                                              \(MM_C= 12g/mol\\MM_H=1g/mol\\MM_O=16g/mol\)

From this, we consider that the compound has 100 grams, so the number of moles of each element will be equal to:

                                                   \(C = \frac{40.92}{12} = 3.41 \\H = \frac{4.58}{1}=4.58\\ O =\frac{54.50}{16}=3.41\)

Now, divide all the values ​​found by the smallest value, to find the amount present in each element:

                                            \(C = \frac{3.41}{3.41} = 1\\ H = \frac{4.58}{3.41} = 1.34\\O = \frac{3.41}{3.41} = 1\)

As you can see, the value of moles of hydrogen resulted in a decimal number, so it is necessary to multiply all values ​​​​by a number in common until the three meet as integers:

                                          \(C = 1 \times 6 = 6\\H = 1.34 \times 6 = 8\\O = 6 \times 6 = 6\)

So, the empirical formula of ascorbic acid is C6H8O6.

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Answer:

The seasons are a result of the tilt of the earth

Answer:

Dysplastic nevi

Explanation:

Answer:

The noble gases are relatively nonreactive. In fact, they are the least reactive elements on the periodic table. This is because they have a complete valence shell. They have little tendency to gain or lose electrons.

Explanation:

Answer:

E. the procedure

Explanation:

In scientific experiments, several steps are taken in order to achieve a significant result. However, the steps involved when performing the experiment should be taken note of and written down in a very comprehensible manner. The written step by step process involved in an experiment is called the PROCEDURE.

A procedure should be a guide to performing the experiment by a new experimenter. It should include everything done during the experiment. In this case, Mrs. Integer is telling Mrs. Apex to write down all she is doing during the experiment in a step by step manner. In essence, the principal is simply asking her to write a PROCEDURE.

299.7g of H2O will be produced.

1st) With the balanced chemical equation and the molar mass of CH4 and H2O, we can calculate the amount of H2O that is produced by stoichiometry:

- CH4 molar mass: 16g/mol

- H2O molar mass: 18g/mol

According to the balanced equation, 16g of CH4 will produce 36g of H2O (2 x 18g).

2nd) Now, with a mathematical rule of three we can calculate the grams of water that will be produced from 133.2 grams of CH4:

Finally, 299.7g of H2O will be produced from 133.2 grams of CH4.

Answer:

C

Explanation:

I took this class it's C they are balanced

Answer:

i learnt that the different result that i got can be prepared through my experiment. if that result is useful for anywork or for me then i can note down my procedure and use it again to get that result . And while noting it down i will know about the mistake that i did due to which i got different result and i can do correction of it in next time.

The volume of 0.525 moles of C₂H₆ under standard temperature and pressure conditions is approximately 11.16 liters

To calculate the volume of 0.525 moles of C₂H₆ (ethane), you'll need to use the Ideal Gas Law formula, which is PV=nRT, where P represents pressure, V is volume, n is the number of moles, R is the ideal gas constant, and T is temperature.

In this case, you are given the moles (n=0.525) of C₂H₆, but you'll need the values of pressure (P) and temperature (T) to calculate the volume (V).

If we assume standard temperature and pressure (STP), then T=273.15 K and P=1 atm.

The ideal gas constant (R) is 0.0821 L⋅atm/mol⋅K for these units.

Using the Ideal Gas Law formula:

V=(nRT)/P

V = (0.525 mol × 0.0821 L⋅atm/mol⋅K × 273.15 K) / 1 atm

V ≈ 11.16 L

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Answer:

yes

Explanation:

Answer:

William Crookes????????????????

Answer: 32.9345 cm^3

Explanation:

The volume of the water that must be added to exactly fill the container with the lead sphere sitting at the bottom of the container will be 3.222 cubic cm.

Volume is defined as the space occupied by any solid object in the three-Dimensions. For the sphere, the radius will be the parameter to calculate the volume. For a cylindrical body, the height and the radius are required to calculate the volume.

Given that A glass container has a volume of 42.122cm³ A lead sphere of radius 2.102 cm is placed inside the glass container.

To calculate the volume of the water calculate the volume of a lead sphere and subtract it from the volume of the cylindrical container.

Volume of lead sphere = ( 4 / 3 )πr³

Volume of lead sphere = ( 4 / 3 ) x π x ( 2.102)³

Volume of lead sphere = 38.90 cubic cm

Amount of water to fill in the container:-

= ( Volume of container - Volume of the lead sphere )

= 42.122 - 38.90

= 3.222 cubic cm

Therefore, the volume of the water that can be filled in the container will be 3.22 cubic cm.

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All of these processes change the atomic numbers. The correct option is (E).

Each of the listed processes involves a change in the atomic number of an atom. Let's briefly explain each process:

A. Alpha emission: In alpha emission, an atomic nucleus emits an alpha particle, which consists of two protons and two neutrons. As a result, the atomic number decreases by 2 because two protons are lost from the nucleus.

B. Beta emission: In beta emission, a neutron in the atomic nucleus is converted into a proton and emits a beta particle (an electron) or a positron (a positively charged electron). This conversion results in an increase or decrease in the atomic number by one, depending on whether a beta particle or a positron is emitted.

C. Electron capture: In electron capture, an electron from the electron cloud surrounding the nucleus is captured by the atomic nucleus. This captured electron combines with a proton, resulting in the formation of a neutron. As a result, the atomic number decreases by one.

D. Positron emission: Positron emission occurs when a proton in the atomic nucleus is converted into a neutron, and a positron is emitted. This emission leads to a decrease in the atomic number by one.

In all of these processes, there is a change in the number of protons in the atomic nucleus, which defines the atomic number. Therefore, each of these processes results in a change in the atomic number.

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Answer:

hope it helps

Explanation:

Electrons are kept in the orbit around the nucleus by the electromagnetic force, because the nucleus in the center of the atom is positively charged and attracts the negatively charged electrons.

The moles of CO2 are in the tank is mathematically given as

n=1.431

Question Parameters:

A 10-liter tank of CO2 is at a pressure of 3.5 atm and a temperature of

25°C.

Generally, the equation for the ideal gas  is mathematically given as

PV=nRT

Therefore

n=PV/RT

n=354.638kpa*10/8.314 J/mol·K *298k

n=1.431

In conclusion,  moles of CO2 is in the tank is

n=1.431

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Answer:

A. Molecules have finite volume.

Explanation:

Gases deviate from the ideal gas law at high pressures because its molecules have a finite volume.

Real gases have a finite volume which enables more interaction between the molecules while ideal gases are assumed not to have a finite volume or occupy space which is why it lacks any form of interaction between its molecules.

This difference is the deviation between the real and ideal gases.

Answer:

answer

Explanation:

explination

Answer:

nah she right

Explanation:

Answer:

This is incorrect because a Lunar Eclipse blocks the Sun's rays from reaching EARTH. So for a few seconds, maybe minutes, there is not direct light on earth. So she is incorrect.

Explanation:

I am pretty sure this is right. I hope this helps

Answer:

3000 milligrams

Explanation:

to get milligrams you add 3 zero at the end

It will take about 45 - 60 minutes to completely melt the ice with a melting point of 75° F (24°C) once it reached the melting point.

For use to solve this question, we need to know the melting point of ICE.

Ice is a solid structure formed by the process phase transition whereby liquid water changes to solid through the process called solidification.

However, the melting point of ice is the stage at which temperature melts the solid ice back to liquid.

At standard conditions,

Let assume that, we have 1 inch of a solid ice cube that has a melting point that is equivalent to 75° F (24°C)

It will take about 45 - 60 minutes to completely melt the ice once it reached the melting point.

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Answer:

69Ga=68.925580(3),71Ga=70.9247005(3)

From the calculation, the relative atomic mass of the Coronadium is  122.1

We know that an atom is composed of isotopes. This is the reason why the average atomic mass of compounds is not a while number. It is actually the weighted average of the relative atomic masses of all the isotopes that are in the atom.

Given that we have the total number of atoms as 80, we would now find the relative abundance of each of the isotopes;

Coronadium - 119 = 10/80 * 100 = 12.5%

Coronadium -121 = 20/80 * 100 = 25%

Coronadium - 123 = 50/80 * 100 = 62.5%

Now we can use this information to obtain the relative atomic mass as follows;

Relative atomic mass of Coronadium = (0.125 * 119) + (0.25 * 121) + (0.625 * 123)

= 14.9 + 30.3 + 76.9

= 122.1

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The volume of the rectangular box is 250 cubic centimeters (cm³) or 0.25 liters (L).

To find the volume of a box with a length of 5cm, a width of 5cm and a height of 10cm, we use the formula for the volume of a rectangular box, which is given as;Volume of rectangular box = Length × Width × HeightGiven that the length of the box is 5cm, the width is also 5cm, and the height is 10cm.

Therefore, we substitute the values into the formula above;Volume of rectangular box = 5cm × 5cm × 10cm= 250cm³.

Therefore, the volume of the rectangular box is 250 cubic centimeters (cm³).

We can also represent this volume in liters (L) by converting from cubic centimeters to liters, since 1L is equal to 1000cm³.

Thus, to convert 250cm³ to liters;Volume in liters = Volume in cm³ / 1000cm³/L= 250cm³ / 1000cm³/L= 0.25L.

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Amino Acids is your answer

Answer:

\(\small \boxed{ \sf \: Energy \: of \: photon \: is \: 1.5514 \times {10}^{ - 19} \: joules}\)

Explanation:

Given:

Wavelength (λ) = 1282 nm= 1.282 × 10-⁶ m

planks constant (h) = 6.626 × 10–³⁴ J⋅s

To find:

Energy (E) = ?

Solution:

In Quantum Mechanics the relationship between Energy & wavelength is given

\(E = \frac{hc}{ \lambda} \)

Where E is energy in joules

c is speed of light in m/s ( 3 × 10⁸ m/s)

λ is wavelength photon in meter

Substituting the given data & constant values,

\(E = \frac{hc}{ \lambda} \\ \\ E = \frac{6.63 \times {10}^{ - 34} \times 3 \times {10}^{8} }{1.282 \times {10}^{ - 6} } \\ \\ E = \frac{19.89}{1.282} \times {10}^{ (- 34 + 8+ 6)} \\ \\ E =15.514 \times {10}^{ - 20} \\ \\ \boxed{\sf E =1.5514 \times {10}^{ - 19} \: joules}\)

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Hard water is not typically caused by the concentration of dissolved oslolum (assuming you meant "solutes") but rather by the presence of high concentrations of dissolved minerals, such as calcium and magnesium ions

The net ionic equation for the formation of calcium carbonate (CaCO3) is as follows:

Ca2+ (aq) + CO32- (aq) → CaCO3 (s)

In this equation, the calcium ions (Ca2+) from the dissolved calcium compounds in hard water react with carbonate ions (CO32-) to form insoluble calcium carbonate precipitate (CaCO3), which appears as a white solid. The precipitation occurs because the solubility product of calcium carbonate is exceeded, resulting in the formation of a solid.

The formation of a precipitate is driven by the principle of solubility. When the concentration of a dissolved compound exceeds its solubility limit, the excess ions come together and form a solid. In the case of hard water, when the concentration of calcium ions and carbonate ions surpasses their respective solubility limits, calcium carbonate precipitate forms.

Regarding the replacement of calcium ions with sodium ions, if calcium ions were replaced with sodium ions in the net ionic equation, the reaction would be different. Sodium ions (Na+) do not form insoluble compounds with carbonate ions, and sodium carbonate (Na2CO3) is soluble in water.

In summary, the formation of calcium carbonate precipitate in hard water is driven by the reaction between calcium ions and carbonate ions, leading to the exceeding of the solubility product and subsequent precipitation. If calcium ions are replaced with sodium ions, no precipitate would form as sodium carbonate remains soluble in water.

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The stoichiometric balanced equation helps to find out the mass of carbon dioxide released. The mass of the carbon dioxide produced when 0.76 grams of methane is burned is 2.09 g.

The relative amounts of the products and reactants in a balanced equation is defined as the stoichiometry of a reaction. This concept is generally used to balance the chemical equations.

The combination of hydrogen and oxygen to form water is represented by the stoichiometric equation:

2H₂ + O₂ → 2H₂O

Here in the given CH₄ + 2 O₂ --> CO₂ + 2 H₂O, 16 g of methane reacts with 64 g of oxygen and produces 44 g of carbon dioxide and 36 g of water.

So 0.76 g of CH₄ produces 44 g × 0.76 g / 16 g = 2.09 g CO₂ .

Thus the mass of CO₂ produced is 2.09 g.

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