2. When a person gets too cold, his or her body will begin
Shiver
until the body's temperature is back to
normal. In sentences explain why this is an example of
homeostasis.

The activating groups are; -NH2, -NR2 > -OH, -OR> -NHCOR> -CH3. while the deactivating groups are;  -NO2, -CF3> -COR, -CO2R, -SO3H > Halogens.

Owing to the  unusual stability of the benzene ring, it does not undergo  addition like other unsaturated species, rather benzene does undergo electrophillic substitution.

The substituent groups determine whether the molecule will be activated or deactivated towards electrophilic substitution, the following groups decativate benzene towards electrophilic substitution; -NO2, -CF3> -COR, -CO2R, -SO3H > Halogens. The following groups activate benzene ring towrads electrophilic substitution; -NH2, -NR2 > -OH, -OR> -NHCOR> -CH3.

Learn more about activators and decativators: https://brainly.com/question/9904853

Answer:

B

Explanation:

We can use Planck's equation. Recall that:
[tex]\displaystyle E = h\nu[/tex]

Where h is Planck's constant and ν is the frequency.

We also have that:
[tex]\displaystyle \lambda \nu = c[/tex]

Where c is the speed of light and λ is the wavelength. Hence:

[tex]\displaystyle \nu = \frac{c}{\lambda}[/tex]

Therefore:
[tex]\displaystyle E= h\left(\frac{c}{\lambda}\right)[/tex]

Solving for λ yields:
[tex]\displaystyle \lambda = \frac{hc}{E}[/tex]

Hence substitute. Recall that h = 6.626 × 10⁻³⁴ Js and c = 2.998 × 10⁸ m/s:

[tex]\displaystyle \begin{aligned} \lambda & = \frac{(6.626\times 10^{-34}\text{ Js})(2.998\times 10^8\text{ m/s})}{4.56\times 10^{-19} \text{ J}} \left(\frac{1\times 10^9\text{ nm}}{1\text{ m}}\right) \\ \\ & = 436\text{ nm}\end{aligned}[/tex]

In conclusion, our answer is B.

Answer:

Formula of water:H2O

Formula of potassium chloride:KCl

Answer:

that is all I know sorry hope that may help you :)

Explanation:

Indicator is a substance which shows different colors in acidic and basic medium. Indicators can be natural (derived from natural sources) or artificial ( man-made) for example :

*Litmus is an indicator. Acid turns blue litmus into red while base turns red litmus into blue

* Turmeric solution does not show change in color (remains yellow) in acidic solution and turns red in basic solution.

The correct definition of oxidation in terms of oxygen, electron and hydrogen is added, lost , lost, (Row B).

An oxidation reaction is a reaction in which the oxidation number if the reacting species increases in a positive direction.

Therefore, the correct definition of oxidation in terms of oxygen, electron and hydrogen is added, lost , lost, (Row B).

Learn more about oxidation at: https://brainly.com/question/4222605

CO2 and H2O react to form H2CO3 and two bonds are broken each in CO and H2O to form H2CO3.

Chemical bonding refers to the forces of attraction which hold atoms of the same or different elements together in order to form stable compounds or molecules .

Chemical bonding may be either ionic or covalent.

The greater the number of bonds in a compound, the more stable the compound.

During chemical reactions, bonds are broken and new binds are formed.

There are two bonds each in CO2 and H2O.

This, in the reaction between CO2 and H2O react to form H2CO3, , the number of bonds broken in H2O is two and in CO2 is two.

Learn more about chemical bonding at: https://brainly.com/question/819068

Answer:

Your answer is  probe and a meter.

Explanation:

Hope it helps

Good Luck

Answer:

Explanation:

0.20/4 = 0.05 for arsenic trichloide.

0.25/6 = 0.04 for water.

This means that water is the limiting reactant.

Answer: PO43

Explanation: The structure and formula are as follows: The chemical structure of phosphate is PO43-.

The molecular mass is 94.97 g/mol.

Answer:

Hello! your answer is A,C, and D!

Explanation:

These are things only females would do/have, I hope I helped and good luck!

Have a wonderful day/night!

Answer:

Beacause  it does  just in a different place

Explanation:

Because the Earth's orbit around the sun differs from the Moon's orbit around the Earth, lunar eclipse don't happen every month.

#LearnWithBrainly

Answer: 4707 J

Explanation:

The role of conservation of linear momentum is important to your safety as a pedestrian or a motorist because you will avoid being hit by car.

The principle of conservation of linear momentum states that the sum of the initial momentum of an isolated system is equal to the sum of the final momentum.

The role of conservation of linear momentum is important to your safety as a pedestrian or a motorist because you will avoid being hit by car which is in motion, knowing that impulse you will receive will be equal to the change in the momentum of the car.

Learn more about conservation of linear momentum here: https://brainly.com/question/7538238

Answer:

Hg+2 + 2Cl- -> HgCl2

HOPE THIS HELPS HAVE A GREAT DAY/NIGHT!!~

Explanation:

Answer:

[tex]\huge\underline{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} -}[/tex]

before looking at what the question says ,

let's have some general information related to the topic of the question !

__________________________

[tex]\implies \: [/tex] Electric field refers to the force generated by a nearby charge in the surroundings.

__________________________

[tex]\implies \: [/tex] Mathematically ,

Electric field = [tex]\frac{Kq}{r^{2}} \\[/tex]

where ,

K = coulomb's constant

q = magnitude of charge

r = distance between the opposite terminals

___________________________

[tex]\implies \: [/tex] Dipole moment , P = 2qd

where ,

q = magnitude of charges

d = distance between the charges

___________________________

[tex]\implies \: [/tex] positive charge tends to throw the field away from it while negative charge tends to pull the field towards it !

_____________________________________

seems like enough of information , so now let's look at the derivation !

refer the attachments in order to see the derivation !

Final answer -

[tex]\bold\pink{E = \frac{2kp}{(x {}^{2} - d {}^{2} ) {}^{2} } } \\ [/tex]

while , for a short dipole

[tex]\bold\pink{E = \frac{2pk}{x {}^{3} }} \\ [/tex]

hope helpful :D

Answer:In water's diagram, the slope of the line between the solid and liquid states is negative rather than positive. The reason is that water is an unusual substance in that its solid state is less dense than the liquid state.

Explanation:

Ca(OH)₂⇒ Ca²⁺ + 2OH⁻

s                 s         2s

Ksp = [Ca²⁺][OH⁻]²

Ca(NO₃)₂ ⇒ Ca²⁺ + 2NO₃⁻

0.1 M             0.1        0.2

Input in Ksp

1.3 x 10⁻⁶ = 0.1 . 4s²

s² = 3.25 x 10⁻⁶

s = 1.8 x 10⁻³

1.8 x 10⁻³ is the molar solubility. Solubility is the amount of a substance that can be dissolved in a liquid to form a solution.

Solubility is the amount of a substance that can be dissolved in a liquid to form a solution; it is typically represented as grammes of solute every litre of liquid. One fluid's (liquid or gas) solubility in another can be entire (e.g., methanol and water are completely miscible) or partial (e.g., oil and water barely mix). Generally speaking, "like dissolves like" (for instance, the aromatic hydrocarbons dissolves in one another but not in water).

A material's solubility in two solvents is measured by the distribution coefficient, which is used in some separation techniques (such as absorption and extraction). In general, as temperature rises, so do the dissolution rates of solids in liquids, while they fall as temperature rises and rise with pressure for gases.

Ca(OH)₂⇒ Ca²⁺ + 2OH⁻

s                 s         2s

Ksp = [Ca²⁺][OH⁻]²

Ca(NO₃)₂ ⇒ Ca²⁺ + 2NO₃⁻

0.1 M             0.1        0.2

1.3 x 10⁻⁶ = 0.1 . 4s²

s² = 3.25 x 10⁻⁶

s = 1.8 x 10⁻³

Therefore, 1.8 x 10⁻³ is the molar solubility.

To know more about solubility, here:

https://brainly.com/question/14366471

#SPJ2

Answer:

hamburger

yes yes

Explanation:

none lol

Answer: it has full valence shells

Explanation: Hope this is it

Answer:

Neon, along with helium, argon, krypton and xenon, make up the group known as noble gases. These are the most stable and least reactive elements due to having full valence shells (the outer shell has the max number of electrons, two for helium, eight for the rest).

Explanation:

Hope it helps

PlS MARK BRAINLIEST <3

`

`

`

Tori

D. A sour liquid that forms gas bubblee when mixed with copper

Answer: D

Explanation:

This is just a definition.

Answer:

The answer is True.

Explanation:

The sentence above is true it all adds up.

Answer:

5.1 | B | 3.2 kg

Explanation:

Answer:

The actual electronic structure of the molecule (the average of the resonance forms) is called a resonance hybrid of the individual resonance forms.

Explanation:

hope this help

pls mark brainliest