Help please thank youu

Help Please Thank Youu

Answers

Answer 1

Answer:

The KE increases.

Explanation:

KE=1/2(mv²)

So, as the velocity increases, kinetic energy also increases.


Related Questions

calculate the value of (Ag+) in a saturated solution of AgCl in distilled water

Answers

Answer:

[tex][Ag^+]=1.3x10^{-5}M[/tex]

Explanation:

Hello there!

In this case, according to the dissociation of silver chloride in aqueous solution, we can write:

[tex]AgCl(s)\rightarrow Ag^+(aq)+Cl^-(aq)[/tex]

Whereas the equilibrium expression is:

[tex]Ksp=[Ag^+][Cl^-][/tex]

And the solubility product constant is  1.7 x10⁻¹⁰; thus, by inserting x as the concentration of both silver and chloride ions as they are the same at equilibrium, we obtain:

[tex]1.7x10^{-10}=x^2\\\\x=\sqrt{1.7x10^{-10}} \\x=1.3x10^{-5}M[/tex]

Which is also equal to the concentration silver ions at equilibrium in a saturated solution because we considered the Ksp.

[tex][Ag^+]=1.3x10^{-5}M[/tex]

Best regards!

Considering change of state descriptions, select the name of the change of state for when energy is absorbed. Group of answer choices sublimation freezing condensation deposition

Answers

Answer: Sublimation

Explanation:

Sublimation : It is a process in which a solid directly changes to gaseous phase by providing heat.

Freezing is a process in which a liquid changes into solid phase when allowed to cool.

Condensation is a process in which a gas changes into liquid phase when allowed to cool.

 Deposition is a  process in which a gas deposits as solid phase when allowed to cool.

Thus change of state where energy is absorbed is sublimation.

wich strong nucleophil h2s or water??and why??

Answers

According to my notes, nucleophilicity order is directly proportional to basicity order in an aprotic medium, and is inversely proportional to basicity order in protic medium. And H2O is a stronger base than H2S, so it should be the strong nucleophile, but the answer is given as H2S is the stronger nucleophile.

hope this helped, good luck <3

what is the pH if the H+ is 5.7 x 10^-10 M ?

Answers

Answer:

9.24

Explanation:

-logofH

__Zn+__HCI → _ZnCl2 + __H2

Answers

Answer:

1Zn+ 2HCI → 1ZnCl2 + 1H2

Big assignment please help. Will do anything

Answers

When I try to click on the picture it doesnt let me, is it an actual picture? Or..
For trolls

How does increasing the pressure affect the reaction rate? A. The activation energy of the reaction is changed. B. The concentration of reactants is changed. C. The temperature of the reaction is changed. D. The phase the reactants are in is changed​

Answers

Answer:

Explanation:

b

The rate of the reaction determines the product formation and depends on various factors. The increase in pressure will change the concentration of reactants. Thus, option B is correct.

What is the reaction rate?

The rate of the reaction is the speed at which the chemical reaction moves in a direction to yield products. The reaction rate is influenced by the surface area of the substance, temperature, and concentration.

The pressure directly affects the concentration which in turn affects the reaction rate. The increased pressure raises the concentration and more collisions will occur between the particles resulting in a fast rate of reaction.

Therefore, the increase in pressure increases the concentration and reaction rate.

Learn more about reaction rate here:

https://brainly.com/question/12866245

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HELP QUICK!!!!!!
How many valence electrons do the atoms in Group 13 have?

Answers

Answer:

The answer is 3 valance electrons.

Explanation:

Hope this helped Mark BRAINLIEST!!!

Answer:

3 valence electrons

Explanation:

The atoms in group 13 have three valence electrons.

What is it called when a gas turns into a liquid

Answers

Answer:

condensation

Explanation:

The process of a gas becoming a liquid is called condensation.

☁️ Answer ☁️

Condensation

"Condensation is the name of the process through which gas turns into a liquid. Three common states of matter exist: solids, liquids and gases. Matter, however, can change its state with the addition or subtraction of energy. The energy is usually in the form of heat. "

Hope it helps.

Have a nice day noona/hyung.

Heat is most closely related to which kind of energy?

Answers

Answer:

I'm very sure it's thermal energy.

Explanation:

Answer:

thermal energy is the answer

. Which law of motion relates the action of a stretched rubber band

Answers

Answer:

newtons 3rd law of motion

Explanation:

Atoms with 5 or more valence electrons tend to form __________________ ions, called _________.

Answers

Answer:

positively-charged  cations

Explanation:

hope this helps! :)

arrange the following group of atoms in order of decreasing atomic size:B,Al,Ga​

Answers

Answer:

B<Ga<Al

Explanation:

Hope this helps

A city continuously disposes of effluent from a wastewater treatment plant into a river. The minimum flow in the river is 130 m3/s, and the discharge from the treatment plant is 37 m3/s. Upstream from the outfall, the background concentration is 0.69 mg/L. The maximum allowable concentration in the river is 1.1 mg/L. What is the maximum concentration that of the pollutant (in mg/L) that can be safely discharged from the wastewater treatment plant

Answers

Answer:

[tex]2.54\ \text{mg/L}[/tex]

Explanation:

C = Allowable concentration = 1.1 mg/L

[tex]Q_1[/tex] = Flow rate of river = [tex]130\ \text{m}^/\text{s}[/tex]

[tex]Q_2[/tex] = Discharge from plant = [tex]37\ \text{m}^3/\text{s}[/tex]

[tex]C_1[/tex] = Background concentration = 0.69 mg/L

[tex]C_2[/tex] = Maximum concentration that of the pollutant

The concentration of the mixture will be

[tex]C=\dfrac{Q_1C_1+Q_2C_2}{Q_1+Q_2}\\\Rightarrow C_2=\dfrac{C(Q_1+Q_2)-Q_1C_1}{Q_2}\\\Rightarrow C_2=\dfrac{1.1(130+37)-130\times 0.69}{37}\\\Rightarrow C_2=2.54\ \text{mg/L}[/tex]

The maximum concentration that of the pollutant (in mg/L) that can be safely discharged from the wastewater treatment plant is [tex]2.54\ \text{mg/L}[/tex].

Question attached above

Answers

The correct answer is option B or number two electrons are consumers

At 40°C how many grams of sugar would dissolve in 100 grams of water

Answers

Answer:

I think is C 240 yup yup

Explanation:

At 40°C how many grams of sugar would dissolve in 100 grams of water?

what happens when a molecule absorbs infrared radiation

Answers

Answer:

When a molecule absorbs infrared radiation,transition s occur from the ground vibrational state to an excited vibrational state. For a molecule to be IR active there must be a change in dipole moment as a result of the vibration that occurs when IR radiation is absorbed.

What is the percent yield of water from the combustion of propane (C3H8), if my theoretical yield is 8.17g of water and my actual yield was 6.13 g water?

A)Answer not shown

B)0.75%

C)75%

D)1.33%

Answers

Answer:

im not sure

Explanation:

i went on here looking nobody answered yet

Convert 8.19 x 10-14 moles of gold to atoms.

Answers

Answer:

4.932018 × 10¹⁰ atoms

Explanation:

Recall that:

1 mole = 6.022 × 10²³ atoms

To change 8.19× 10⁻¹⁴ moles to atoms;

Then, we have:

= (8.19× 10⁻¹⁴× 6.022 × 10²³ atoms)

= 4.932018 × 10¹⁰ atoms

A gas has a pressure of 699.0 mm Hg at 40.0 0C. This temperature is
K.

What is the temperature at 760.0 mm Hg? K (round to 1 decimal place) or

degrees Celsius (round to one decimal place.

Answers

Answer:

initial temp: 313.2 Kfinal temp: 340.5 Kin Celsius: 67.3 °C

Explanation:

Given a volume and quantity of gas at 699.0 mm Hg pressure has a temperature of 40.0 °C, you want to know the temperature at 760.0 mm Hg pressure.

Pressure and Temperature

Pressure and absolute temperature of a gas are proportional for a given quantity and volume.

Initial temperature

The temperature of 40.0 °C is an absolute temperature of ...

  40.0 K + 273.15 K = 313.15 K ≈ 313.2 K

New temperature

The temperature after increasing the pressure can be found from ...

  T/313.15 = (760.0 mm)/(699.0 mm)

  T = 313.15 · 760/699 ≈ 340.5 . . . . Kelvin

In Celsius, that is ...

  340.5 K -273.2 = 67.3 °C

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which of the following, when dissolved in water, forms a weak acid.A. HNO3B. HClO4C. HBrD. HClOE. NH3

Answers

Answer:

The weak acid is - E. [tex]NH_3[/tex]

Explanation:

Ammonia is a strong base, which in turn make it to be a weak acid.

As, the rest of the options are acid and therefore furnish hydrogen ions when dissolved in water, making them strong acid.

And ammonia dissolves in water to form its conjugate ammonium ion and hydroxide ion, therefore making the solution basic.

Hence, from the given options, the correct option is E. [tex]NH_3[/tex]

The compound which when dissolved in water, forms a weak acid is; Choice E: NH3

According to the question;

we are required to determine which compound forms a weak acid when dissolved in water.

Unlike other compounds (HNO3, HClO, HBr, HClO) which dissolve in water to yield H+ ion, Ammonia dissolves in water to form ammonium ion and hydroxide ion, OH-.

In essence, NH3 is a strong base when dissolved in water and consequently, is a weak acid when dissolved in water.

Read more:

https://brainly.com/question/15192126

Gallium (, ) is a metalloid obtained from its salts during the smelting of ores of other elements, like Zinc. has broad applicability in the electronics industry. It is also used as a safe replacement for mercury in thermometers as it melts at and has a heat of fusion of . What is the entropy change of of gallium in as it melts when placed on a surface at

Answers

The given question is incomplete. The complete question is:

Gallium (Ga, 69.723 g/mol) is a metalloid obtained from its salts during the smelting of ores of other elements, like Zinc. has broad applicability in the electronics industry. It is also used as a safe replacement for mercury in thermometers as it melts at 29.8 °C and has a heat of fusion of 5.59 kJ/mol. What is the entropy change of 22 g of gallium in J/K as it melts when placed on a surface at 29.8°C?

Answer: The entropy change of of gallium in as it melts when placed on a surface at  is 5.81 J/K

Explanation:

Latent heat of fusion is the amount of heat required to convert 1 mole of solid to liquid at atmospheric pressure.

Amount of heat required to melt 1 mole of Ga = 5.59 kJ

Mass of Ga given = 22 gram

Heat required to melt 69.723 g of Ga = 5.59 kJ

Thus Heat required to melt 22 g of Ga = [tex]\frac{5.59kJ}{69.723}\times 22=1.76kJ[/tex]

Temperature = [tex]29.8^0C=(273+29.8)kJ=302.8kJ[/tex]

Now entropy change = [tex]\frac{\text {heat of fusion}}{\text {temperature in K}}=\frac{1.76kJ}{302.8K}=0.00581kJ/mol=5.81J/K[/tex]

Thus the entropy change of of gallium in as it melts when placed on a surface at [tex]29.8^0C[/tex] is 5.81 J/K


A gas occupies a volume of 2.4 L at 0.14 ATM. What volume will the gas occupy at 0.84 ATM?

Answers

Answer:

0.4 L

Explanation:

Calculate by using Boyle's Law P₁V₁=P₂V₂

(0.14atm)(2.4L) = (0.84atm)(V₂)

0.336 atmL = (0.84atm)(V₂)

V₂ = 0.336 atmL/0.84atm

V₂ = 0.4 L

?CH4 → ?C6H6 + ?H2

?C2H6 + ?O2 → ?CO2 + ?H2O

I need to know the number that goes in front of the equations

Answers

Answer:

You basically want to balance these equations.

(6)CH4 → (1)C6H6 + (9)H2

(2)C2H6 + (7)O2 → (4)CO2 + (6)H2O

NOTE: DO NOT PUT BRACKETS IN YOUR ANSWER, I HAVE PUT HERE FOR THE ANSWERS INSTEAD OF QUESTION MARKS.

6CH4->1C6H6 + 9H2

2C2H6 + 702-> 4CO2 + 6H2O

ANSWER THIS GET 25 POINTS!!!!
Sam is walking in a garden on a day represented by the figure above. Which plants in the garden could be blooming on this day?
A:long-day and day-neutral plants
B: day-neutral plants only
C: short-day and day-neutral plants
D: short-day, long-day, and day-neutral plants

Answers

Answer:

C: short-day and day-neutral plants

Explanation:

There is no figure above.

C: Short-Day and Day- neutral plants

warm air rises at the equator and cold air sinks at the poles creating
A. tornadoes
B. hurricanes
C. convection currents
D. the coriolis effect

Answers

Answer:

c.convention currents

Explanation:

As hot air cools it sinks back to the surface of the earth, where it gets warmed by the ocean only to rise again.This is called a convection current.

Which of the following is an example of synthesis?


A) HgO + Cl2-->HgCl + O2

B) Na + Br2 --> NaBr

C) KClO3 --> KCl + O2

D) Cl2 + NaBr --> NaCl + Br2

Answers

Answer:

B

Explanation:

Bases are typically found in

Answers

Answer:

they are typically found in

1)soap

2) detergent

3) baking soda etc..

From an element's location in the periodic table, you can predict
A. its properties.
B. its chemical name.
C. its chemical symbol.
D. when it was discovered.

Answers

It’s A.it’s properties
Mark me brainliest please

Answer:

A. It's properties

Explanation:

arrange the following group of atoms in order of increasing atomic size:B,Al,Ga​

Answers

Answer:

Al,Ga,B

Explanation:

Now since i helped you can you help me with this plz

Matteo took 5 math quizzes. The mean of the 5 quizzes was 8.2. Here are four of his quiz scores 7, 7, 8, 10. What is the 5th quiz score? Show work.

Boron ( B )

Aluminium ( Al )

Gallium ( Ga )

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