can someone pls explain urgent!!​

Answer:

Carbon Dioxide

If H₂O is water, CO₂ is CARBON DIOXIDE.

Answer:

C.

Explanation:

First of all, we must know the Avogadro's number:

1 mol of CO2 = 44.0 g (from the molar mass) = 6.02x10^23 molecules of CO2

How must we proceed?

44.0 g CO2 ------------6.02x10^23 molecules CO2

2.59 g CO2 ------------ x

x = 3.54x10^22 molecules CO2

Answer: 3.54x10^22 molecules CO2

Answer:

mixture, because it is made of more than 1 ingredient.

Explanation: The awnser would be The effects of warmed water on aquatic life

Answer:

Bent

Explanation:

pls brainlist

The main reservoirs of the carbon cycle are the atmosphere, oceans, land (including vegetation and soils), and fossil fuels. In these reservoirs, carbon exists in both inorganic and organic forms.

The inorganic carbon cycle involves the exchange of carbon dioxide (CO2) between the atmosphere and oceans through processes like photosynthesis and respiration.

Organic carbon, on the other hand, is found in living organisms, dead organic matter, and soil organic matter. It is cycled through processes such as decomposition and consumption by organisms. The interactions between the inorganic and organic carbon cycles occur primarily in the biosphere, where photosynthesis converts inorganic carbon into organic carbon compounds. While inorganic carbon is primarily in the form of CO2, organic carbon is present in complex organic molecules. Both forms of carbon play crucial roles in energy transfer, nutrient cycling, and climate regulation.

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Counterfeiting or unauthorized distribution can be a significant problem for manufacturers, as it results in the loss of control over their products when they end up in the hands of unauthorized distributors and resellers.

Counterfeiting and unauthorized distribution pose serious challenges for manufacturers across various industries. When products fall into the hands of unauthorized distributors and resellers, manufacturers lose control over their distribution channels, pricing, and quality assurance. Counterfeit products, in particular, are imitations or replicas of genuine products, often designed to deceive consumers by mimicking the appearance and packaging of the original product.

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Answer:

\(thank \: yo\)

Answer:

See answer below

Explanation:

I have to answer this question in english because is the rule here. I hope you can understand this.

Now, in order to answer this, is really easy. We already have the quantity of SO₂ in the air of a city. This concentration is 14 mg/m³, so we want to know the quantity in 1 L. This quantity can be expressed in mass.

If concentration according to the units is: mg/m³ This means that we have units of mass and volume. So, in order to know the quantity of SO₂ in mass, we need to convert the units of volume m³ to liter.

1 m³ is covered in 1000 L, therefore:

14 mg/m³ * 1 m³/1000 L = 0.014 mg/L

Then, the mass will be:

m = 0.014 mg/L * 1 L

m = 0.014 mg of SO₂

This is the quantity of SO₂ in 1 L.

The protein's specific volume (0.73 mL g-1 for -lactoglobulin).

Enzyme-containing proteins help speed up the metabolism, or chemical changes, in our bodies. While some compounds are decomposed, others have been produced. Everything that is alive contains enzymes. Naturally, our bodies produce enzymes.

For instance, the enzyme pepsin is a vital component of gastric fluids and aids in the breakdown of food particles in the belly. Similar to how amylase, an enzyme found in saliva, turns starch into glucose to aid in the first stages of digestion. The thrombin enzymes is employed in medicine to speed up the healing of wounds.

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Answer:

Magnesium Ion

Explanation:

This is a Magnesium ion. There are 12 protons from the magnesium atom. There are 10 electrons because 12-2=10. There are 12 neutrons because 24-12=12

Answer:

Explanation:

My guess is option c

A rate is what is used when two quantities are in a ratio but have different units. We can predict how one quantity will change as we adjust another using rates.

Volume of a cone = π*r^2*h/3

                              = π*10^2*20/3

                              = 2094.3951 cubic meters.

Volume of water lost when its 8 inches deep = V = π*r^2h/3

                                                                             = π·10^2·12/3

                                                                             = 1256.63706 cubic meters.

Remaining volume = 2094.3951 - 1256.63706

                               = 837.758 cubic meters.

Volume of water lost per minute = 0.5 cubic meters.

Time remaining =  837.758 * 0.5

                          = 7 hours approx.

Volume is a measurement of three-dimensional space that is occupied. It is frequently expressed mathematically using standard or SI-derived units. Volume and the measurement of length are connected.

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Answe AgNO₃

1:1:3 ratio

Answer: 4.41*10^23 atoms

Explanation:

3.82*(6.02*10^23)/52.10= 4.41*10^23 atoms

N*2=14.01*2=28.02

H*8=  1.01*8=  8.08

O*1=16.00*1=16.00

Add them together to get 52.10 g

Explanation:

I hope it helps

ya welcome

The nuclear equation for the alpha decay of Uus-294 is

\(^{294}{117} Uus\) →\(^{4}{2}He + ^{290}_{115}Mc\)

To complete the nuclear equation for the alpha decay of Uus-294, we need to determine the missing product.

During alpha decay, the emission of an alpha particle, composed of two protons and two neutrons, leads to the formation of a new nucleus.

The balanced nuclear equation for the alpha decay of Uus-294 can be represented as follows:

\(^{294}{117} Uus\) → \(^{4}{2}He +\)_____(missing product)

In this equation, the atomic number of the missing product must be two less than the atomic number of Uus-294 (117 - 2 = 115), and the mass number of the missing product must be four less than the mass number of Uus-294 (294 - 4 = 290).

Based on this information, the missing product can be identified as:

\(^{290}_{115}Mc\)

Mc stands for Moscovium, which has an atomic number of 115. By subtracting two from the atomic number of Uus, we obtain the atomic number of Mc. The mass number of Mc-290 is obtained by subtracting four from the mass number of Uus-294.

Therefore, the  nuclear equation for the alpha decay of Uus-294 is:

\(^{294}{117} Uus\)→ \(^{4}{2}He + ^{290}_{115}Mc\)

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The complete question is :

Complete this nuclear equation for the alpha decay of Uus-294 by writing a

notation for the missing product:

\(^{204} {117} Uns\)→\(^{4} _{2} He +\)_____

Based on the balanced equation, if we have 0.08 moles of Iron (Fe), we can conclude that 0.08 moles of Hydrogen (H₂) will be formed as well.

First we need to balance the chemical equation for the reaction involving Iron (Fe) and Hydrogen (H).

The reaction will be between Fe and HCl (hydrochloric acid) to produce hydrogen gas (H₂) and iron chloride (FeCl₂):

Fe + 2HCl → FeCl₂ + H₂

From the balanced equation, we can see that for every 1 mole of Fe reacted, 1 mole of H₂ is formed. Therefore, if we have 0.08 moles of Fe, we can conclude that 0.08 moles of H₂ will be formed as well.

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C4H5N2O is the empirical formula. A compound has a molecular weight of 345, 86.88% carbon, 13.12% hydrogen, and a molecular weight of 107.9 gmol carbon.

Divide through by 12.011gmol, which is the atomic mass of carbon. Hence, C9H is the empirical formula.

The simplest whole-number ratio of the different atoms in a compound is represented by an empirical formula.

The precise number of various atom types contained in a compound's molecule is indicated by the molecular formula.

The sorts of atoms and their quantities in a molecule or compound are described using chemical formulae.

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Answer:118

Explanation: it’s right

Answer:

118 elements

Hope that helps

In 2CaCO3 there are 3 elements

I hope that helped you! If you have any further questions comment down below or message me! Good luck!

The phase diagram represents the different phase transitions that occur in matter. The arrow labeled "1" represents the transition from a solid to a liquid state, which is commonly known as melting or fusion.

When a substance undergoes melting, it absorbs a specific amount of energy known as the latent heat of fusion. To identify the arrow that most likely represents a phase change involving the same amount of energy as arrow 1, we need to consider the specific phase transitions and their associated energy changes. The phase transition directly opposite to melting on the phase diagram is the transition from a liquid to a solid state, known as freezing or solidification. This transition involves the release of the same amount of energy that was absorbed during melting.

Hence, the arrow that most likely represents the phase change involving the same amount of energy as arrow 1 is arrow "6," which signifies the transition from a liquid to a solid state. Both melting and freezing involve the same amount of energy exchange, as they are reversible processes occurring at the same temperature.

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Answer:

2.38 g of oxygen (O2).

Explanation:

What is given?

Mass of potassium chlorate (KClO3) = 6.06 g.

Molar mass of KClO3 = 122.4 g/mol.

Molar mass of oxygen (O2) = 32 g/mol.

Step-by-step solution:

First, let's state the balanced chemical equation. Remember that the decomposition of a compound produces two or more products:

Now, let's convert 6.06 g of KClO3 to moles using its molar mass:

You can see in the chemical equation that 2 moles of KClO3 produce 3 moles of O2. By doing a rule of three with this data, we obtain that:

The final step is to convert from 0.0743 moles of O2 to grams using its molar mass, like this:

The answer is that we will produce 2.38 g of oxygen (O2) from the decomposition of 6.06 g of potassium chlorate (KClO3).

Answer:

2Mg(s) + O2(g) - >2MgO(s)

The decay of the isotope N-16 occurs according to the reaction equation; 16/7 N -----> γ +  16/7 N.

The term radioactive decay has to do with the spontaneous disintegration of an unstable nucleus to yield radiation.

The decay of the N-16 nucleus releases gamma rays which a radioactive radiation according to the equation; 16/7 N -----> γ +  16/7 N.

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Answer:

divide the volume value by 1000

So 3828/1000=3.828

The increased distance across the cell will result in an increase absorbance reading.

The concentration of \([Fescn]_2\) would be affected if the cuvette had a 1.5 cm path length rather than the 1.0 cm value used.Since the absorbance of a sample is proportional to the concentration of a sample (as described by the Beer-Lambert law), increasing the path length of the cuvette would result in a decrease in absorbance. This means that the concentration of the sample would be lower than if the 1 cm path length was used. In other words, the concentration of \([Fescn]_2\)would be lower if the cuvette had a 1.5 cm path length than if it had a 1.0 cm path length.

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The fibers that interact best with azo dyes are generally natural fibers like cotton, wool, and silk due to their chemical composition and structure.

When dyeing with azo dyes, natural fibers such as cotton, wool, and silk tend to have the best interaction with the dye. This is because the chemical composition and structure of natural fibers allow for better absorption and bonding of the dye molecules. Cotton fibers, for example, contain hydroxyl groups which can form hydrogen bonds with azo dye molecules.

Wool and silk fibers, on the other hand, contain amino acid residues that can interact with the azo dyes through various bonding mechanisms. In comparison, synthetic fibers like polyester and nylon may not interact as effectively with azo dyes due to their different chemical structures, which can lead to less vibrant colors and reduced colorfastness.

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