Describe sure to answer all parts. Describe the hybrid orbitals used by the central atom and the type(s) of bonds formed in O₃. A. sp³ B. sp C. sp³d D. sp² Number of σ bonds: Number of π bonds:

Hydrogen chloride (HCl) and sodium bicarbonate (NaHCO3) are the reactants. The substances produced as a result of this reaction are CO2(g), H2O(l), and NaCl(aq).

The reactants in the following equation:

HCl (a q) + NaHCO3(a q) → CO2(g) + H2O(l) + Na C l (aq) are hydrogen chloride (HC l) and sodium bicarbonate (NaHCO3).

Explanation:

A reactant is a substance that undergoes change during a chemical reaction. A reaction equation includes the symbols and formulas of reactants and products, along with the physical states of the substances, as they appear before and after the reaction.

The chemical reaction in this question is: HC l(a q) + NaHCO3(a q) → CO2(g) + H2O(l) + Na Cl (a q)In this equation, the reactants are H Cl (a q) and NaHCO3(a q), which are in an aqueous state.

Therefore, hydrogen chloride (H Cl) and sodium bicarbonate (NaHCO3) are the reactants. The substances produced as a result of this reaction are CO2(g), H2O(l), and Na Cl (a q).

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Answer:

A.

Explanation:

The melting of wax is just a physical change, not a chemical one, since melted wax can still reharden and go back to its original state. All the other choices are non-reversible, chemical changes.

Hopefully this helps- let me know if you have any questions!

Answer:

Melting of candle wax when heated

Explanation:

So what's the difference

We can get candle wax back when we melted it so it's physical reaction

Answer:

Just look at which one it doesn't show.

Explanation:

Characteristics of compounds

1. Components in a compound are present in a definite proportion.

2. It has a homogeneous composition.

3. Particles in a compound are of one kind.

4. A compound is made up of one or more atoms of the same or different elements.

5. In a compound the elements are present in a fixed ratio by mass.

6. A compound can be divided into simpler substances by a chemical process.

7. The physical and chemical properties of a compound are completely different from those of its constituents.

The hydrogen bonding of water is one of the main property of water which makes it responsible for all the other physical and chemical properties.

Water molecules are polar in nature and they form hydrogen bonds. Hence, they have a high boiling point , high specific heat and density. Water can exhibit the properties of an acid, as well as a base (amphoteric character). The water molecules are constantly moving and the hydrogen bonds continuously breaks and forms again. These hydrogen bonds are strong, which is the reason for the unique properties of water.

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Answer:

The molarity (M) of a solution is the number of moles of solute dissolved in one liter of solution. To calculate the molarity of a solution, you divide the moles of solute by the volume of the solution expressed in liters.

Answer:

(CH3COO)2 + redP + Cl2 → ClCH2COOH + HCl

Explanation:

This is an example of halogenation of carboxylic acids at alpha carbon atom. In this reaction, red phosphorus and chlorine are treated with carboxylic acids having alpha hydrogen atom followed by hydrolysis to form alpha chloro carboxylic acid.

33g

explanation

n=mM

Where:

- n is the amount or number of moles

- m is the mass in grams

- M is the molar mass in grams/mole

n=0.75

Calculate molar mass by adding the atomic masses of all atoms in the molecule

M=12+16⋅2

=44

m=n⋅M

=0.75⋅44

=33g

Answer:

4.5 ×10^22)

Explanation:

no. of particles =no. of mole×avogadro's number of particles                                             no. of particles =0.75×6.02×10^23                                                                                                         no. of particles =4.5 ×10^22  

Answer:

data given

molarity 3.2m

moles 50mol

Required volume

Explanation:

from

molarity =mole/volume

3.2=50/v

v=15.62

:.volume is15.62dm^3

We have that for the Question, it can be said that the percentage of arsine molecules have de- composed is

Percentage of arsine molecules=79.62%

From the question we are told

A sample of gaseous arsine (AsH3) in a 460 mL flask at 332 Torr and 223 K, is heated to 437 K, at which temperature arsine decom- poses to solid arsenic and hydrogen gas. The flask is then cooled to 273 K, at which temperature the pressure in the flask is 488 Torr. What percentage of arsine molecules have de- composed?

Answer in units of %

.

Generally the equation for the ideal gas   is mathematically given as

\(PV=nRT\\\\Therefore\\\\(\frac{296}{760})*(0.465)=n*0.0821*213\\\\n=0.010356\\\\\)

Hence

\(\frac{511}{760}*0.6165=nf*0.0821*263\\\\nf=0.014479\\\\0.010356-2x+3x=0.014479\\\\X=0.004123moles\\\\\)

Therefore

\(Percentage\ of\ arsine\ molecules=\frac{0.004123*2}{0.010356}*100\)

Percentage of arsine molecules=79.62%

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Answer

We kill animals and we are creul :)

Explanation:

Your welcome

The molar mass corresponds to the chlorofluorocarbon CF3Cl (Freon-11), which has a molar mass of 137.37 g/mol. Therefore, the chlorofluorocarbon in the experiment is CF3Cl.

The rate of effusion of a gas through a porous barrier is inversely proportional to the square root of its molar mass. Therefore, we can use the rate of effusion to determine the relative molar mass of the two gases and identify which one is a chlorofluorocarbon.

The rate of effusion can be calculated using Graham's law:

Rate of effusion = Volume of gas / Time taken to effuse

For the chlorofluorocarbon, the rate of effusion is:

Rate of effusion (CFC) = 50 mL / 157 s = 0.3185 mL/s

For argon, the rate of effusion is:

Rate of effusion (Ar) = 50 mL / 76 s = 0.6579 mL/s

Using Graham's law, we can set up the following equation:

Rate of effusion (CFC) / Rate of effusion (Ar) = sqrt(Molar mass (Ar) / Molar mass (CFC))

Solving for the ratio of molar masses:

Molar mass (Ar) / Molar mass (CFC) = (Rate of effusion (Ar) / Rate of effusion (CFC))^2

Molar mass (Ar) / Molar mass (CFC) = (0.6579 mL/s / 0.3185 mL/s)^2

Molar mass (Ar) / Molar mass (CFC) = 4.294

Molar mass (CFC) = Molar mass (Ar) / 4.294

The molar mass of argon is 39.95 g/mol. Therefore, the molar mass of chlorofluorocarbon is:

Molar mass (CFC) = 39.95 g/mol / 4.294 = 9.30 g/mol

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Answer:

positive and negative

Explanation:

A typical sample of the fuel on a volume basis consists of liquid propane and butane.

Liquid Petroleum Gas (LPG) is a mixture of hydrocarbon gases that are commonly used as fuel for spark-ignition engines. The composition of LPG can vary, but a typical sample on a volume basis consists of mainly liquid propane and butane. Propane and butane are both hydrocarbon gases that can be liquefied under moderate pressure, making them suitable for storage and transportation as a liquid fuel.

These gases are known for their high energy content and clean combustion properties, which make them efficient and environmentally friendly choices for fueling spark-ignition engines.

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Answer:

Explanation:

When we say anything is a wave, what exactly do we mean? The most intuitive and straightforward wave to envision is a water wave. A motion, more specifically, is a disturbance that propagates or travels away from its source. Water waves are caused by a disruption in the water's surface, such as a rock tossed into a pond or a swimmer splashing the surface continuously. The noise for sound waves is a rise of air pressure, which may be caused by the oscillating cone within a speaker. There are many kinds of disturbances in earthquakes, including surface disturbances and pressure disturbances under the surface. Even radio signals are best deciphered by using a comparison of sea waves Water waves are helpful to visualize since they are more than just a mental picture. The amplitude, period, frequency, and energy of water waves are all the same as they are for all waves. A small set of underlying principles can be used to describe all wave characteristics.

(hope this helps can i plz have brainlist :D hehe)

Answer:

argon

For example, the K+ ion is isoelectronic with argon. Potassium has 19 electrons and 1 is in the outermost shell: a valence electron. If potassium is ionized and becomes a +1 cation, this is to say that it lost its single valence electron. This is favorable, because it gives potassium a noble gas configuration

The increase in temperature causes the concentration of NO at equilibrium to increase because the reaction shifts to the left in order to relieve the stress caused by the increased temperature.

LeChâtelier's principle states that when a system at equilibrium is subjected to a stress, it will shift in a direction that tends to relieve that stress. In the case of the reaction of nitrogen monoxide (NO) with oxygen to form nitrogen dioxide (NO2), increasing the temperature is a stress that disturbs the equilibrium of the reaction.

At higher temperatures, the reaction will proceed more quickly due to the increased kinetic energy of the reacting species. This means that more NO2 will be formed, causing the concentration of NO2 to increase. According to LeChâtelier's principle, the reaction will shift to the left in order to relieve this stress and restore equilibrium. This means that the concentration of NO will increase, while the concentration of NO2 will decrease.

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Answer:

by sharing an electron

Explanation:

each of the two bonded atoms share an electron....making a single covalent bond b/w the two....like in....F - F

A drop of ink will spread faster as higher the temperature is. The higher the temperature, the more agitated the molecules will be, so they will move faster. So the mobility of the particles is related to their temperature.

So:

Particles in Flask C show the greatest mobility of the particles, this flask will have the highest temperature.

Particles in Flask A show the least mobility, this flask will have the lowest temperature.

Answer:

Flask A 10°C

Flask B 25 °C

Flask C 50 °C

The mobility of the particles is related to their temperature. The particles in Flask A show the least mobility, and the particles in Flask C show the greatest mobility.

Answer:

C.) The less dense the object, the faster the heat will transfer.

When representing chlorine (Cl) with a Lewis symbol, the number of dots placed around the chemical symbol of chlorine corresponds to the number of valence electrons that chlorine possesses.

Chlorine belongs to Group 17, also known as Group VIIA or the halogens, in the periodic table. Elements in Group 17 have seven valence electrons because they have seven electrons in their outermost energy level (valence shell). In the case of chlorine, the atomic number is 17, indicating that it has a total of 17 electrons.

To represent the valence electrons of chlorine using a Lewis symbol, each dot represents one valence electron. Therefore, we would place seven dots around the chemical symbol of chlorine. The dots are typically arranged around the symbol, with one dot on each side (top, bottom, left, right) and three more dots positioned between them (diagonal).

The Lewis symbol for chlorine (Cl) would look like this:

        .

   .       Cl

        .

The seven dots represent the seven valence electrons of chlorine.

The Lewis symbol is a simplified representation used to depict the valence electrons and understand the bonding behavior of atoms. It provides a visual representation of how atoms interact and form chemical bonds.

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A germinating seed is one from which a plant has started to grow. A non-germinating seed is usually dry, and a new plant has not yet emerged. The germinating corn seed consumed more oxygen than the non-germinating corn seed. This statement is true.  Therefore, option A is correct.

A dry seed starts to absorb water through its seed coat when it comes into touch with damp soil or growing medium. The seed swells and the seed coat splits open as it absorbs more water. Small shoots and roots make up the embryo inside the seed. First to appear from the seed is the root.

The prerequisites for seed germination include oxygen, water, temperature, and, only for particular seeds, light. The sprouting of seeds is impacted when one or more of these are missing. Similar internal elements that impact this process include seed viability, dormancy, and embryonic maturity.

Thus, option A is correct.

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The secondary color green may be composed of more than one color while red, blue and yellow are single colors. If you take red and blue and mix those together, the color purple will be formed.

Though, the shade of purple will depend on the ratio and type of red and blue shade. Since purple is a secondary color. The 2 colors that make purple are primary in nature.

Primary colors (or primary colours) are sets of colors that can be combined to make a useful range of colors. The primary colors are those which cannot be created by mixing other colors in a given color space.

A secondary color is a color made by mixing of two primary colors in a given color space.

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To determine the number of aluminum atoms used in manufacturing each soft drink can, we need to multiply the number of moles of aluminum (0.55 moles) by Avogadro's number (6.022 × 10^23 atoms/mol). Therefore, each soft drink can contains approximately 3.31 × 10^23 aluminum atoms.

To determine the number of aluminum atoms used in manufacturing each soft drink can, we need to know the Avogadro's number, which represents the number of atoms or molecules in one mole of a substance.

Avogadro's number (NA) is approximately 6.022 × 10^23 atoms/mol.

Given:

Moles of aluminum (Al) = 0.55 moles

To find the number of aluminum atoms, we can use the relationship between moles and atoms:

Number of atoms = Moles × Avogadro's number

Number of atoms = 0.55 moles × (6.022 × 10^23 atoms/mol)

Number of atoms ≈ 3.3121 × 10^23 atoms

Therefore, approximately 3.3121 × 10^23 aluminum atoms are used in manufacturing each soft drink can.

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The statement of Henry's law is as follows: "The concentration of a gas in a liquid is proportional to the pressure of the gas over the solution". The pressure of CO2 gas in the can is 1.49 atm.

To find the pressure of CO2 gas in the unopened soda can having aqueous CO2 concentration of 0.0506 M at 25°C, we will have to apply Henry's law.

The formula for Henry's law is given as follows:

C = k x P

Henry's law constant (k) can be determined by dividing the concentration of the dissolved gas by the partial pressure of the gas. Henry's law constant is different for different gases at different temperatures

So, the pressure of CO2 gas in the can will be:

P = C / k

Substituting the given values in the above formula:

P = 0.0506 M / 0.034 M/atm (Henry's law constant at 25°C for CO2)

P = 1.49 atm

Hence, the pressure of CO2 gas in the can is 1.49 atm.

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The question requires us to order the steps given in a way that they properly represent how to prepare and label a solution.

To prepare a solution from a solid solute, we must calculate the amount of solute and solvent necessary, weigh the mass of solute and add it to a proper flask, add enough water to prepare the solution (as previously calculated) and then correctly label the solution with its molarity.

Considering the steps given and the information above, and also taking into consideration that all possible answers allow only three steps, we can choose the following order:

1) "calculate and mass the number of grams of solute needed, add to flask" (V)

2) "add enough water to make the total necessary volume of solution" (VI)

3) "label the solution with the correct molarity" (I)

Therefore, this is the order of steps to prepare the solution: V - VI - I

The best option to answer this question is the third one (letter C).

the answer would be V,VI,I

Answer:

and I quenot se the question

Explanation:

ok firts you dirent take a god picture

Answer:

D it's a chemical change