PLEASEEE HELPPP!!!!!!
Two students were conducting and experiment based on the ionization energy of alkali metals. The driving question for the experiment was: "What is the relationship between ionization energy and the rate of reaction (time for the reaction to be completed) using alkali metals."



Which of the following predictions would be the best option based on the student's prior knowledge learned and information provided in the graph above?

A.
Cesium will have a higher rate of reaction (faster) because it has the lowest ionization energy which indicates a higher reactivity.

B.
Cesium will have a lower rate of reaction (slower) because it has the lowest ionization energy which indicates a lower reactivity.

C.
The ionization energy of the alkali metals will not affect the rate of the reaction because the energy required to remove an electron does not affect time.

D.
Lithium will have a higher rate of reaction (faster) because it has the highest ionization energy which indicates a higher reactivity.

Answer:

YES

Explanation:

the main reason why bonds form is because the elements wants to be more stable so in a covalent bond the electrons are shared between two elements so they can fulfill or at least "feel" like they have fulfilled there outer shell.

Answer:

its c

Explanation:

Answer:

You can put what they are made out of so show how different they are

Answer: carbon

Explanation:

Answer: hydrogen

Explanation: Hydrogen is usually considered an energy carrier, like electricity, as it must be produced from a primary energy source such as solar energy, biomass, electricity (e.g. in the form of solar PV or via wind turbines), or hydrocarbons such as natural gas or coal. On the other hand, magnesium, carbon, and iodine are not often used as conductors of electricity because they either have a covalent bond that does not generate electricity or because they contain particles or compounds that  can’t be installed inside electric installations.

Answer: the correct answer is C velocity.

Explanation: I just got the answer wrong on the exam.

Answer:The Anwser is C; velocity

Explanation:

Explanation:

conducting goodnluck

Answer:

C. Conduction

Explanation:

direct contact of particles will always be conduction.

Answer:

A) energy stored by atoms

Explanation:

Chemical potential energy is the energy stored by atoms. This energy form can be converted to other forms of energy.

Answer:

elimination:it is the act of discharging or excreting waste product from body is elimination.

substitution:the act/action of replacing someone or something with another person or thing.

Answer:

B. Argon has similar properties to neon.

Explanation:

hope it helps u.

The statement of element has properties similar to neon is "argon."

A substance that cannot be split into smaller components using normal chemical processes. Elements are chemical compounds that correspond to a single spot on the current periodic table. Elements are made up of only one type of atom.

Argon, like neon, is classified as a noble gas. That is, argon is a member of the noble gas family of chemicals.

Both neon and argon are positioned in the group 8, which means they have eight electrons in their outermost electron shell, making them noble and inert gases. They are very nonreactive since they already have a complete and stable octet structure and don't need to connect to other elements.

Hence the correct option is B.

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Answer: potassium chloride

Answer:

24.6g of NaCl

Explanation:

Expression of the reaction:

            2NaCl →  2Na  +  Cl₂

Given parameters:

Mass of Cl₂  = 15g

Unknown:

Mass of NaCl  = ?

Solution:

To solve this problem, we have to use mole relationships.

 Find the number of moles of the mass of the given specie;

    Number of moles  = [tex]\frac{mass}{molar mass}[/tex]  

     Molar mass of Cl₂  = 2(35.5) = 71g/mol

   Number of moles  = [tex]\frac{15}{71}[/tex]   = 0.21mole

Now;

 From the balanced reaction equation;

        1 mole of Cl₂ is produced from 2 moles of NaCl;

      0.21 mole of Cl₂ will be produced from 0.21 x 2 = 0.42mole of NaCl

So,

  Mass of NaCl = number of moles x molar mass

    Molar mass of NaCl  = 23 + 35.5 = 58.5g/mol

 Mass of NaCl  = 0.42 x 58.5 = 24.6g of NaCl

Answer:

I think its D

Explanation:

It doesn't go straight up

Explanation: Honestly, I have no idea and I've never learned this, but I think it's because of air resistance and currents? Going downwind would mean the plane's rate would be the speed of the wind + the speed of the plane itself. Going upwind, the plane's rate would be the speed of the plane - the speed of the wind. Thus, going one way (e. g. California to New York) could take less time than going the other way.

Answer:

a CUT stands for Circuit Under Test.

Explanation:

Answer:

Emission spectra may be used in studying stars in order to determine what atoms makeup the individual star produces, due to the fact that each atom’s emission spectra biunique, one can observe the spectra emitted by the star and identify the atoms that are released by the light the star produces.

The emission spectrum can tell the elements present in the source of light. Therefore, this method can be used to get information about the element present in the stars.

Electromagnetic radiations interact with atoms or molecules of matter, the electrons absorb energy and jump to a higher energy state of atoms by losing their stability.

They need to move from the higher energy state to the lower energy level to regain their stability. These atoms or molecules emit radiations in several regions of the electromagnetic spectrum. The spectrum of radiation emitted by electrons in the excited state is called the emission spectrum.

The emission spectrum of a chemical element is the spectrum of frequencies of electromagnetic radiation emitted when an atom transitions from a high-energy state to a lower-energy state. The emitted energy is unique for every element and is the characteristic of the element.

Learn more about the emission spectrum, here:

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Answer:

for what school? It's different for all sadly :(

Explanation:

Answer:

219.95 °C

Explanation:

Given data:

Volume of gas = 9.71 L

Initial pressure = 209 torr (209/760 = 0.275 atm)

Initial temperature = 10.1 °C (10.1 +273 = 283.1 K)

Final temperature = ?

Final pressure = 364 torr (364/760 =0.479 atm)

Solution:

According to Gay-Lussac Law,

The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.

Mathematical relationship:

P₁/T₁ = P₂/T₂

Now we will put the values in formula:

0.275 atm / 283.1 K = 0.479 atm/T₂

T₂ = 0.479 atm × 283.1 K/ 0.275 atm

T₂ = 135.6 atm. K /0.275 atm

T₂ = 493.1 K

Kelvin to °C:

493.1 K - 273.15 = 219.95 °C

Answer:

a because it comes 20 to 100c