Give the name and formula for the acid derived from each of the following anions:
(c) cyanide

Answer:

Put simply, Asexual reproduction is reproduction without the use of gametes or the number of chromosomes being changed. So they are genetically identical creatures. Some animals include wasps,  lizards, sharks, turkeys, and sea urchins.

Sexual reproduction includes chromosomes and gametes being fused, creating genetically different offspring. Examples of creatures that reproduce sexually are humans, chickens, cow, pigs, etc.

Explanation:

Answer:

Shift it toward the side with lower total mole concentration

Explanation:

The reaction will shift in a direction that is less affected by stress, so that the pressure is reduced. This means that the reaction will change towards where there is fewer gas molecules (the fewer gas molecules, the smaller the pressure).

Answer:

A. Shift it toward the side with lower total mole concentration

Explanation:

The second thesis statement is perfect. It supports the claim and presents main idea.

Answer:

Renewable energy

Explanation:

on the other hand, typically emits less CO2 than fossil fuels. In fact, renewables like solar and wind power—apart from construction and maintenance—don't emit any CO2 at all. With renewable energy, you can breathe easier, stay cooler, and create a more comfortable world for generations to come.

Answer:

renewable energy comes from natural resources that can be replenished or replaced during an average human lifetime ; eg, Hydro, solar, wind etc.

fossil fuels can take thousands or even millions of years to naturally replenish; eg, natural gas, coal, oil.

1. It takes a lot of energy to break all of the bonds because the ions in this big structure are tightly bound. It has a high melting point because of this.

2. Its ions are unrestricted in the molten state. Therefore, electricity can flow through molten magnesium oxide.

In order for electrolysis to take place, ionic compounds must be molten or in solution. The reason for this is that the ions—the charged particles that make them up—need to be able to freely move to the electrodes.

Some furnace linings are made from magnesium oxide. It is known as a refractory material, which simply means that it has a high thermal conductivity.

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Answer:

Explanation:

A petrifying well is a well which gives objects a stone-like appearance. If an object is placed into such a well and left there for a period of months or years, the object acquires a stony exterior.

Answer:

High resistance

Low conductivity

Explanation:

The more resistance (aka less conductivity) there is, the more the energy is turned into heat than simply  passing through the object.

Answer:

1) false

2) true

3) true

4) false

Answer:

Chemical energy

Explanation:

I hope this helped you!

Batteries store the energy in the form of chemical energy that chemical energy is converted into electrical energy. Chemical energy is used to stored in the substances within battery.

The conversion of chemical energy into electrical energy or vice versa is called as electrochemical energy . This includes reactions transferring electrons, redox reactions .

Redox reaction in which reduction and oxidation takes place simultaneously. Reduction, when a substance receives one electron. Oxidation when a substance gives away one electron.

A battery is a device that stores chemical energy and converts it to electrical energy. The chemical reactions in a battery involve the flow of electrons from one material (electrode) to another, through an external circuit.

Thus, chemical energy is used to store in the substance within battery.

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The ratio of the initial rate of appearance of water to the initial rate of disappearance of oxygen can be determined by examining the balanced chemical equation for the reaction.

To determine the ratio, we need to consider the balanced chemical equation for the reaction. Let's assume we have a reaction in which oxygen (O2) is being consumed and water (H2O) is being produced. The balanced equation would be:

aO2 + bH2O -> cO2 + dH2O

In this equation, "a" and "b" represent the stoichiometric coefficients of oxygen and water, respectively. Similarly, "c" and "d" represent the stoichiometric coefficients of the oxygen and water products, respectively.

The ratio of the initial rates of appearance of water to the initial rates of disappearance of oxygen can be determined by comparing the coefficients of water and oxygen in the balanced equation. If the stoichiometric coefficients are equal, the ratio would be 1:1. However, if they are not equal, the ratio would be determined by the respective coefficients.

For example, if the balanced equation is 2O2 + 3H2O -> 4O2 + 6H2O, the ratio would be 3:2, indicating that for every 3 moles of water formed, 2 moles of oxygen are consumed.

It is important to note that the ratio is specific to the balanced equation and may vary depending on the specific reaction being considered.

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In a saturated solution of \(Ag_{2}CrO_{4}\) (silver chromate) that is sitting over its undissolved solid, the process of dissolution and precipitation is occurring on a molecular level.

In a saturated solution of \(Ag_{2}CrO_{4}\), the maximum amount of solute (\(Ag_{2}CrO_{4}\)) has been dissolved in the solvent. At this point, the solution is in a state of dynamic equilibrium, where the rate of dissolution of \(Ag_{2}CrO_{4}\) equals the rate of precipitation (crystallization) of the solute.

On a molecular level, this means that as some \(Ag_{2}CrO_{4}\) molecules in the solution collide with the undissolved solid and join the crystal lattice, an equal number of \(Ag_{2}CrO_{4}\) molecules from the undissolved solid dissolve back into the solution. This continuous process maintains the concentration of \(Ag_{2}CrO_{4}\) in the solution at a constant level.

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Explanation:

Avogadro's number. What can be said about 1 mol Ag and 1 mol Au? ... They contain the same number of atoms.

1 mole of Ag and 1 mole of Au contain the same number of particle. Therefore, option B is correct.

The International System of Units uses the mole (symbol: mol) as the unit of material quantity. How many elementary entities of a particular substance are present in an object or sample is determined by the quantity of that material. It is specified that the mole contains exactly 6.022140761023 elementary entities.

A mole is defined as the mass of a substance that has the same number of elementary particles as there are atoms in precisely 12.000 g of 12C.

In the periodic chart, group 11 includes the chemical elements roentgenium (Rg), copper (Cu), silver (Ag), and gold (Au). However, no chemical tests have yet been done to demonstrate that roentgenium behaves similarly to the heavier homologue of gold.

Thus, option B is correct.

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To synthesize 1-phenyl-1-propanol using the Grignard reaction, you need an aldehyde and a Grignard reagent. The aldehyde should be formaldehyde (CH2O). The Grignard reagent needed is benzylmagnesium bromide (C6H5MgBr).

As we know, retrosynthesis is the technique used in organic chemistry to break down a molecule into smaller units called retrosynthetic fragments. The reason for this is to develop a strategy for synthesis by connecting these fragments. It is an important concept for designing and organizing complex syntheses.According to the question, we have to use retrosynthetic analysis to suggest a way to synthesize 1-phenyl-1-propanol using the Grignard reaction. Let's find out the aldehyde and Grignard reagents needed for the synthesis of 1-phenyl-1-propanol. The retrosynthetic analysis of 1-phenyl-1-propanol is given below:In the above diagram, we can see that 1-phenyl-1-propanol can be prepared by reacting Grignard reagent with aldehyde. The aldehyde should be propanal. The Grignard reagent should be Phenylmagnesium bromide (C6H5MgBr). Thus, propanal and phenylmagnesium bromide can be used to synthesize 1-phenyl-1-propanol through the Grignard reaction.So, the aldehyde should be propanal, and the Grignard reagent should be Phenylmagnesium bromide (C6H5MgBr).

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Answer:

Increase the amplitude by blowing with more force.

Explanation: I answered this.

Answer:

Increase the amplitude by blowing with more force

Explanation:

I took the test

The number of the NMR signals compound CH3OCH2CH(CH3)2 shows are:

A spectroscopic method for observing the local magnetic fields around atomic nuclei is nuclear magnetic resonance spectroscopy, sometimes referred to as magnetic resonance spectroscopy (MRS) or NMR spectroscopy.

This spectroscopy's foundation is the measurement of electromagnetic radiations' absorption in the radio frequency range between 4 and 900 MHz. Nuclear Magnetic Resonance Spectroscopy is the name given to the form of spectroscopy that is used to measure the absorption of radio waves in the presence of a magnetic field.

The sample is put in a magnetic field, and the nuclear magnetic resonance (NMR) signal is generated by radio waves excitation of the sample's nuclei, which is detected by sensitive radio receivers.

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The number of the NMR signals compound CH3OCH2CH(CH3)2 shows are:

3 H with singlet.
6 H with doublet.
1 H with muliplet.
2 H with doublet.

A spectroscopic method for observing the local magnetic fields around atomic nuclei is nuclear magnetic resonance spectroscopy, sometimes referred to as magnetic resonance spectroscopy (MRS) or NMR spectroscopy.

This spectroscopy's foundation is the measurement of electromagnetic radiations' absorption in the radio frequency range between 4 and 900 MHz. Nuclear Magnetic Resonance Spectroscopy is the name given to the form of spectroscopy that is used to measure the absorption of radio waves in the presence of a magnetic field.

The sample is put in a magnetic field, and the nuclear magnetic resonance (NMR) signal is generated by radio waves excitation of the sample's nuclei, which is detected by sensitive radio receivers.

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Answer:

What do you want answered?

Explanation:

Answer:

Yes, it is possible. Let us consider an example of two solutions, that is, solution A having 20 percent mass RbCl (rubidium chloride) and solution B is having 15 percent by mass NaCl or sodium chloride.  

It is found that solution A is having more concentration in comparison to solution B in terms of mass percent. The formula for mass percent is,  

% by mass = mass of solute/mass of solution * 100

Now the formula for molality is,  

Molality = weight of solute/molecular weight of solute * 1000/ weight of solvent in grams

Now molality of solution A is,  

m = 20/121 * 1000/80 (molecular weight of RbCl is 121 grams per mole)

m = 2.07

Now the molality of solution B is,  

m = 15/58.5 * 1000/85

m = 3.02

Therefore, in terms of molality, the solution B is having greater concentration (3.02) in comparison to solution A (2.07).

Answer:

Explanation:

It can be determined by measuring the Ph. D is incorrect.

C: is wrong because if you are making something acidic, you are increasing the H+

B: is the correct answer.

A: pH decreases. H+ increases which makes the Ph decrease. It is an oddity of the formula that makes this happen.

Answer:

This isotope of fluorine has 9 protons, 9 electrons and 10 neutrons.

Explanation:

The atomic number is the number of protons  ( p + ) . In a neutral atom, the number of electrons  ( e − )  equals the number of protons. Mass number is the sum of the protons and neutrons  ( n 0 )  of a particular isotope. If you have mass number and atomic number, subtract the atomic number from the mass number to get the number of neutrons.  ( Mass number ) − ( atomic number ) = number of neutrons .

There are:

9 protons

9 electrons

10 neutrons

Fluorine is the element in question, as its atomic number is  9 . You would name this particular isotope using the mass number. It would be called fluorine-19.

The nuclear or isotopic notation would be  19 9 F

Answer:

5.2 x 10^8

Explanation:

Answer:

5.2x10^8

Explanation:

hope this helped

An example of a case in which a wave is absorbed by matter is light seen through a glass window.

Matter is district from waves. A wave is a form of energy which could be absorbed by matter on its path. This is common with both mechanical and electromagnetic waves.

Hence, an example of a case in which a wave is absorbed by matter is light seen through a glass window.

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Answer:

this is not good

Explanation:

alost got the asnwe

s

Answer:

14,250 years old.

Explanation:

First, multiply the two lifetimes. - 11,400.

Then, divide 5,700 in half for the 0.5 lifetime. - 2,850.

Lastly, add them all up. - 11,400 + 2,850 = 14,250 years old.

sorry if incorrect <3

thats what i understood XD

Some common protic solvents used in SN1 reactions include water, alcohols, and carboxylic acids.

In organic chemistry, SN1 reactions are a type of substitution reaction that occurs in a protic solvent.

A protic solvent is a solvent that has a hydrogen atom bonded to an electronegative atom, such as oxygen or nitrogen. This allows the solvent to form hydrogen bonds with the reactants and stabilize the transition state of the reaction.

These solvents are able to stabilize the carbocation intermediate that is formed during the reaction, which helps to increase the reaction rate.

It is important to note that the choice of solvent can have a significant impact on the rate and outcome of the reaction. For example, a polar protic solvent like water will favor the SN1 reaction, while a polar aprotic solvent like acetone will favor the SN2 reaction.

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Answer:

2 Al + 3 Pb(NO3)2 > 2 Al(NO3)3 + 3 Pb

Explanation:

The chemical formula for francium phosphide is FrP.

A chemical formula is described as a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus and minus signs.

There are three main types of chemical formulas which include :

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Answer:

The question did not contain any listed options. However, starch is a common white powder that will give a color change on reacting with iodine molecules

Explanation:

Iodine is a common indicator used in the lab to detect the presence of starch or starchy substances.

Iodine molecules react with amylose in starch to form a complex with a deep blue-black coloration.

Hence, a common white powder which reacts with iodine molecules to give a blue-black color must be a substance that contains starch.

The answer is:

d) cornstarch

Answer:

nitrogen and carbon because there diffusion rate is high