When the half reaction is balanced in acidic solution, will water be a reactant or a product, and what is the lowest whole number stoichiometric coefficient for water?VO2+ (aq) → VO2+ (aq)a Water will be a reactant with a stoichiometric coefficient of 1.b Water will be a product with a stoichiometric coefficient of 1.c Water will be a reactant with a stoichiometric coefficient of 2.d Water will be a product with a stoichiometric coefficient of 2.

Answer:

Explanation:

The new pressure can be found by using the formula for Boyle's law which is

\(P_1V_1 = P_2V_2\)

Since we are finding the new pressure

\(P_2 = \frac{P_1V_1}{V_2} \\\)

So we have

\(P_2 = \frac{325000 \times 2.41}{1.67} = \frac{783250}{1.67} \\ = 469011.97...\)

We have the final answer as

Hope this helps you

The changes are classified as follows:

1: Chemical change -  The addition of the water to quicklime

2: Physical change - The melting of candle wax

3: Physical change -  The change in colour of zinc oxide from white to yellow and vice versa during heating and after cooling, respectively

4: Physical change- The dissolution of common salt

5: Chemical change - The hardening of cement by the absorption of carbon (Iv) oxide​

1: The addition of water to quicklime (slaking of lime) is a chemical change. It involves a chemical reaction between calcium oxide (quicklime) and water to form calcium hydroxide (slaked lime). This reaction is exothermic and produces heat.

2: The melting of candle wax is a physical change. It involves a phase transition from a solid state to a liquid state due to the application of heat. The chemical composition of the wax remains unchanged during this process.

3: The change in color of zinc oxide from white to yellow and vice versa during heating and cooling is a physical change. It is a reversible process caused by the alteration of the crystal structure of zinc oxide. The change in color is due to the absorption or release of energy during the heating and cooling processes, respectively.

4: The dissolution of common salt (sodium chloride) is a physical change. It involves the separation of ionic bonds between sodium and chloride ions in the solid salt and their subsequent dispersal in water. The chemical composition of the salt remains the same; it simply forms a homogeneous mixture with water.

5: The hardening of cement by the absorption of carbon dioxide (CO2) is a chemical change. It involves a chemical reaction known as carbonation, where carbon dioxide reacts with the calcium hydroxide in cement to form calcium carbonate. This reaction leads to the formation of new chemical compounds and a change in the structure and properties of the cement, resulting in its hardening or curing process.

For more such questions on quicklime visit:

https://brainly.com/question/15315072

#SPJ8

Answer:

The physical properties of matter are those characteristics that can be measured without altering the atomic structure, while the chemical properties of matter are those characteristics that result in a change in the atomic structure.

Answer: We can translate the given chemical equation as:

"potassium permanganate combined with zinc chloride produces zinc permanganate and potassium chloride". The best option to answer the question is the first one.

Explanation:

The question requires us to choose, among the options given, the correct "translation" for the following chemical equation:

To solve this problem, we can separate the compounds into their cations and anions, and then analyze the metal (cation) name and anion name. Keep in mind that the name of the compound is formed by cation/metal name + anion name.

1) Let's start with KMnO4, which is formed by the cation K+ (potassium) and anion (MnO4)- (permanganate). The name of KMnO4 is potassium permanganate.

2) Next, let's analyze ZnCl2, which is formed by the cation Zn2+ (zinc) and anion Cl- (chloride). The name of ZnCl2 is zinc chloride.

3) Now, let's check Zn(MnO4)2, which is formed by Zn2+ (zinc) and (MnO4)- (permanganate). The name of Zn(MnO4)2 is zinc permanganate.

4) At last, let's analyze KCl, which is formed by K+ (potassium) and Cl- (chloride). The name of KCl is potassium chloride.

Therefore, we can translate the given chemical equation as:

"potassium permanganate combined with zinc chloride produces zinc permanganate and potassium chloride". The best option to answer the question is the first one.

Answer:

they both have gravity

Explanation:

Answer:

gravity

Explanation:

Answer:

Examples of longitudinal waves include: sound waves. ultrasound waves. seismic P-waves.

Explanation:

Answer:

Elements:

Platinum - Pt

Silicon - Si

Lead - Pb

Hydrogen- H

Silver - Ag

Symbols:

Pr - Praseodymium

K - Potassium

Br - Bromine

Mg - Magnesium

Hg - Mercury

The concentration of A is 0.764 mg/mL for a known mixture of compounds a and b gave the following HPLC results.

The force can be calculated buy using the response area for compounds A and B.

10.8/1.03=Fx1.37/1.16

F=2.799

The unknown solution has 29.81 mg of B.

Final concentration of B= 29.81 mg/25 ml =1.924 mg/ml

Let suppose concentration of A to be x mg/ml.

Therefore, the final concentration of A= 10 ml/25 mlx x mg/ml = 0.4 x mg/ml

Now,

Area (A) = 4.3 cm2

Area (B) = 5.99 cm2

So,

4.3/0.4x=2.799 x 5.99/1.1924

x=0.764 mg/ml

Thus, the concentration of A is 0.764 mg/ml.

To learn more about concentration check the link below:

https://brainly.com/question/14469428

#SPJ4

Pretty sure its Physical Changes

No chemical reaction is happening.

Answer:

Changes of states are physical changes

Explanation:

They are reversible changes that do not involve changes in matter's chemical makeup or chemical properties.

PLEASE MARK BRAINLIEST

Right Now Please <_> I really need it to level up

Answer:

95.965 grams

Explanation:

Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023×10²³ particles per mole. Avogadro's number applies to any substance.

Then you can apply the following rule of three: if 6.023×10²³ molecules are contained in 1 mole of NH₃, then 3.4×10²⁴ molecules are contained in how many moles of NH₃?

amount of moles of NH₃= (3.4×10²⁴ atoms × 1 mole)÷ 6.023×10²³ atoms

amount of moles of NH₃= 5.645 moles

Being the molar mass of NH₃, that is, the amount of mass that a substance contains in one mole, 17 , then the amount of mass that 5.645 moles of the compound contain can be calculated as:

5.645 moles× 17=  95.965 grams

Finally, 95.965 grams of NH₃ are in 3.4×10²⁴ molecules of NH₃.

Answer:

Always moving

Explanation:

unless temperature is at 0° Kelvin molecules are are always in motion

The aluminium molecules will be in the state of motion always. Since, the particles inside the metal undergoes thermal vibrations.

Aluminium is 13 the group element in periodic table. It is classified near the group of nonmetals still it is a metal because, it exhibit metallic properties, such as luster, hardness, malleability and ductility.

Metals are electron rich and they are said to be consists of a pool of positive ions and free electrons. The metal lattice consists  of delocalized electrons and they can conduct electricity.

The ions and electrons are under thermal agitation always as stated by the brownian motion of particles. Thus the aluminium molecules inside the bicycle will be in motion not only when the bicycle is moved.

To find more on aluminium, refer here:

https://brainly.com/question/25869623

#SPJ2

Carrier proteins serve many purposes in the purposes in the attempt to move molecules across a plasma membrane.

Carrier proteins are proteins which are found n the surfaces of cell membranes which serve the function of transporting molecules across the cell membrane barrier.

The carrier proteins transport various molecules across the cell membrane.

Carrier proteins transport such molecules as sugars, proteins, ions, lipids across the membrane.

Some carrier proteins expend energy in the form of ATP when they transport molecules across the cell membrane.

Some use the concentration gradient of cells to transport molecules across the cell membrane.

The carrier proteins which expend energy to transport molecules are involved in active transport.

The carrier proteins that do not expend energy are involved in passive transport.

In conclusion, carrier proteins are essential in the transport of molecules across the plasma membrane.

Learn more about carrier proteins at: https://brainly.com/question/5556977

#SPJ1

Answer:

The correct answer is - 1, 2, and 4 statements.

Explanation:

Beta and gamma turns are common plots or turns in proteins and contain intra-turn hydrogen bonds. This hydrogen bond is present between CO of residue i and NH of residue i+3 that holds the confirmation in beta turns.

Beta turns, assist the protein to get their globularity, as the aim of beta turns is to reverse the direction of the polypeptide. The two main of beta turns are type-I and type-Il. and their minor images are type-I and type-Il.

Thus, the correct answer is - 1, 2, and 4 statements.

The given solids are classified as: Diamond- covalent solid, aluminum chloride-Ionic solids, Copper- Metallic solids, dry ice- molecular solids

The classification of a solid depends on the type of chemical bonding between the atoms or molecules that make up the solid. Covalent solids are held together by covalent bonds, ionic solids by ionic bonds, metallic solids by metallic bonds, and molecular solids by intermolecular forces between the molecules.

Some other examples of such solids are:  Covalent solids- Graphite, silicon dioxide (quartz), silicon carbide. Ionic solids- Sodium chloride, magnesium oxide, calcium carbonate, potassium iodide. Metallic solids- Iron, gold, aluminum. Molecular solids- sulfur, ice (solid water), solid nitrogen

To know more about solids here

https://brainly.com/question/30333708

#SPJ4

The complete question is:

Classify each of these solids as ionic, molecular, metallic, or covalent (also known as covalent-network solids or macromolecular solids).

Diamond, Aluminum chloride, copper, dry ice.

Answer:

First one c for the second one i think is c sorry if wrong hope this help

Explanation:

Phenyl propyl is a chemical term that refers to a molecule containing a phenyl group (a six-membered aromatic ring made up of carbon and hydrogen atoms) attached to a propyl group (a three-carbon chain).

The phenyl group is a six-membered aromatic ring consisting of carbon and hydrogen atoms, while the propyl group is a three-carbon chain. The combination of these two groups can result in the formation of a wide range of chemical compounds with diverse properties and applications.

For example, phenyl propyl ether is a common compound in which a phenyl group is attached to a propyl group via an oxygen atom, while phenyl propylamine is a compound containing a phenyl and propyl group attached to a nitrogen atom, commonly used in the production of pharmaceuticals and other chemicals.

Learn more about Phenyl propyl

https://brainly.com/question/9578026

#SPJ4

Amines are organic compounds that contain a nitrogen atom with a lone pair of electrons . The compound CH3-CH2-NH2 is classified as a primary amine. So correct option is B.

Amine compounds are organic compounds that contain a nitrogen atom bonded to one or more carbon atoms. They are derivatives of ammonia (NH3), where one or more hydrogen atoms are replaced by alkyl or aryl groups. Amines are classified based on the number of substituents attached to the nitrogen atom and the presence of any additional functional groups.

It is worth noting that some amines can have characteristic odors. For instance, low-molecular-weight amines like trimethylamine have a fishy smell, while larger amines like putrescine and cadaverine contribute to the odor of decaying flesh.

Amine compounds play a vital role in organic chemistry and have significant importance in various fields due to their versatile chemical reactivity and functional properties.

The compound CH3-CH2-NH2 is classified as a primary amine. Amines are organic compounds that contain a nitrogen atom with a lone pair of electrons, and they can be classified as primary, secondary, or tertiary depending on the number of carbon groups bonded to the nitrogen atom. In this case, there is only one carbon group bonded to the nitrogen atom, making it a primary amine.

To know more about atom visit:

https://brainly.com/question/8776482

#SPJ11

The statement that is true is: "Alkenes contain at least one sp2 hybridized carbon atom."

Alkenes are unsaturated hydrocarbons that contain at least one carbon-carbon double bond. In a double bond, each carbon atom is bonded to three other atoms (two other carbons and one hydrogen), and thus has a trigonal planar geometry with sp2 hybridization. The remaining p orbital on each carbon atom overlaps sideways to form the π bond of the double bond.

The other statements are false:

Functional groups exhibit different properties and functions depending on their specific chemical structure and properties.

Double and triple bonds have larger electron domains than single bonds because they have more electrons shared between the atoms.

Double bonds are shorter than single bonds, but their length is not exactly half of the single bond length. Triple bonds are even shorter than double bonds.

Dipole moments have different strengths depending on the polarity and geometry of the molecule.

To learn more about alkenes

brainly.com/question/29283735

#SPJ11

Answer:

balancing of charges of both sides

Answer:

A

Explanation:

A...............................

Answer:

Explanation:

do it right now leking good......, my feet my back due tomorrow

A balanced chemical equation is where the number of reactants is equal to several products.

A balanced chemical equation is one in which the number if reactants is equal to number of products.

1) Zn + 2AgCl → ZnCl₂ + 2Ag

2) FeCl₂ + 2HbS →  FeCl₂ + 2HCl + 2S

3) 2Ag₂O   →   4 Ag + 2O₂

4)3AlO₂     →  3Al + 3 O₂

5) K₂   + 2HbO → 2KOH + 2Hb

6) 3CaCO₂  →  3CaO + 3CO₂

7) 2Mg + O₂     → 2MgO

8) 2CO + 2FeO₂  →  2Fe + 2CO ₂

Therefore, A balanced chemical equation is where the number of reactants is equal to several products.

To learn more about chemical equation, refer to the link:

https://brainly.com/question/28294176

#SPJ1

So, at STP, there are around 891 grammes of nitrogen gas in every 759 litres.

The two stable isotopes of naturally occurring nitrogen (7N) are nitrogen-14 and nitrogen-15, with nitrogen-14 constituting 99.6% of all naturally existing nitrogen. Along with one nuclear isomer, 11mN, fourteen radioisotopes with atomic masses ranging from 10 to 25 are also known.

Assuming "ST" refers to standard temperature and pressure (0°C and 1 atm), we can use the ideal gas law to calculate the mass of nitrogen gas:

PV = nRT

where n is the number of moles, P is the pressure, V is the volume, and T is the temperature, and R is the gas constant.

The temperature and pressure are 273.15 K and 1 atm, respectively, at STP.

To solve for n, the number of moles, we can rearrange the ideal gas law equation as follows:

n = PV / RT = (1 atm) * (759 L) / (0.0821 L·atm/(mol·K) * 273.15 K) = 31.8 mol

Now we can calculate the mass of nitrogen gas:

mass = n * molar mass = 31.8 mol * 28.01 g/mol ≈ 891 g.

To know more about nitrogen gas visit:-

https://brainly.com/question/13907528

#SPJ1

A star evolves off the main sequence when helium is exhausted in the stellar core.Our solar system’s gas giant planets (and those of other solar systems) did not become stars because they are not massive enough to generate the high temperatures and pressures necessary to start hydrogen fusion in the core.

Stars evolve off the main sequence when the nuclear fusion in their cores is no longer capable of supplying sufficient energy to maintain the gravitational energy, causing it to contract and the outer layers to expand and cool. When hydrogen runs out in the core of a star, the core shrinks and heats up and the outer layers expand, resulting in a red giant. However, when helium is consumed in the core, the core collapses and heats up, causing the outer envelope to get expelled, and the core evolves into a white dwarf.

A gas giant planet's temperature and pressure aren't high enough to generate fusion. They aren't dense enough to generate the heat required for nuclear fusion. Therefore, gas giant planets do not generate their own light and heat in the same way as stars. They can emit more energy than they obtain from the sun if they have a significant atmosphere. The planets in the solar system, such as Jupiter and Saturn, are examples of gas giants.

learn more about gravitational energy

https://brainly.com/question/15896499

#SPJ11