Put these events in order.
= Your phone contacts a base station in a cell.
= Once connected, a duplex system allows you to talk to the other person at the same time.
= You dial a number on your cell phone.
The MTSO then connects you to the other device.
= A base station contacts the Mobile Telephone Switching Office (MTSO).

Answer:

3) Vapor pressure in atm = 0.13 atm

Explanation:

Answer:

Explanation:

The answer is C Liquid

Answer:

A = 349 g.

Explanation:

Hello there!

In this case, since the radioactive decay kinetic model is based on the first-order kinetics whose integrated rate law is:

[tex]A=Ao*exp(-kt)[/tex]

We can firstly calculate the rate constant given the half-life as shown below:

[tex]k=\frac{ln(2)}{t_{1/2}} =\frac{ln(2)}{58year}=0.012year^{-1}[/tex]

Therefore, we can next plug in the rate constant, elapsed time and initial mass of the radioactive to obtain:

[tex]A=500g*exp(-0.012year^{-1} *30year)\\\\A=349g[/tex]

Regards!

Answer:

A precipitation reaction is one in which substances in solution are mixed and an insoluble product is made. The insoluble product is called a precipitate and can be seen as a solid forming in the reaction mixture.

Answer:

there is nothing here

Explanation:

Answer:

9.91 mL

Explanation:

Using the combined gas law equation as follows;

P1V1/T1 = P2V2/T2

Where;

P1 = initial pressure (torr)

P2 = final pressure (torr)

V1 = initial volume (mL)

V2 = final volume (mL)

T1 = initial temperature (K)

T2 = final temperature (K)

According to the information provided in this question;

V1 = 15.0mL

V2 = ?

P1 = 760 torr

P2 = 1252 torr

T1 = 10°C = 10 + 273 = 283K

T2 = 35°C = 35 + 273 = 308K

Using P1V1/T1 = P2V2/T2

760 × 15/283 = 1252 × V2/308

11400/283 = 1252V2/308

Cross multiply

11400 × 308 = 283 × 1252V2

3511200 = 354316V2

V2 = 3511200 ÷ 354316

V2 = 9.91 mL

Explanation:

Sodium Chloride is neutral whereas hydrochloric acid is an acid. 2. Sodium Chloride is solid while hyrdochloric acid is a gas.

Answer:

Solution given:

2 Al + 3 H2SO4 – Al2(SO4)3 + 3H2

2mole +3mole. --- 1 mole + 3 mole

27×2g. +3×98g-------- 342,g. + 6g

we have

2 mole of Al gives. 6g of h2

5 moles of Al gives 6/2×5=15g of hydrogen

15 g is your answer

Answer:

–253.5 °C

Explanation:

We'll begin by calculating the number of mole in 6 g of CO₂. This can be obtained as follow:

Molar mass of CO₂ = 12 + (2×16)

= 12 + 32

= 44 g/mol

Mass of CO₂ = 6 g

Mole of CO₂ =.?

Mole = mass / molar mass

Mole of CO₂ = 6 / 44

Mole of CO₂ = 0.136 mole

Next, we shall convert 225 mL to L.

1000 mL = 1 L

Therefore,

225 mL = 225 mL × 1 L / 1000

225 mL = 0.225 L

Next, we shall determine the temperature of the gas. This can be obtained as follow:

Pressure (P) = 0.855 atm

Volume (V) = 0.225 L

Number of mole (n) = 0.136 mole

Gas constant (R) = 0.0821 atm.L/Kmol

Temperature (T) =?

PV =nRT

0.855 × 0.255 = 0.136 × 0.0821 × T

0.218025 = 0.0111656 × T

Divide both side by 0.0111656

T = 0.218025 / 0.0111656

T = 19.5 K

Finally, we shall convert 19.5 K to degree celsius (°C). This can be obtained as follow:

T(°C) = T(K) – 273

T(K) = 19.5 K

T(°C) = 19.5 – 273

T(°C) = –253.5 °C

Therefore, the temperature of the gas is –253.5 °C

Answer:

The rate at which the air temperature changes with height in the atmosphere surrounding a cloud or a rising parcel of air. The overall average rate is a decrease of about 6.5°C/km, but the rate varies greatly in different regions of the world, in different airstreams, and at different seasons of the year.

According to the law of conservation of mass, mass is neither created nor destroyed in a chemical reaction. If the reaction obeys the law of conservation of mass, the mass before and after the reaction will be the same.

Any element's mass at the start of a reaction will equal its mass at the end of the reaction. Accounting for all reactants and products in a chemical reaction results in the same total mass at any point in time in any closed system.

When coal, for example, is burned, the carbon atom transforms into carbon dioxide. The carbon atom undergoes transformation from solid to gas, but its mass remains constant.

According to the law of conservation of mass, the amount of mass that enters a chemical reaction in the form of reactants must equal the amount of mass that exits the reaction process in the form of products. This is only possible in a closed system. For example, if 2g of reactant A reacts with 32g of reactant B, the mass of the product AB formed is 34g.

To learn more about Law of conservation of mass, refer to:

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Answer:

Speed is the rate of change of position expressed as distance travelled per unit of time .

Explanation:

Explanation:

C5H12 + 8O2 → 5CO2 +6H2O

balanced✓

stable✓

Answer:

Acero

Explanation:

Explanation:

The particles of matter are continuously in motion due to which tehy collide with each other, and this creates a vibration in the solids

I hope it is correct ☺️

Answer:

760ml of water

Explanation:

Answer: 800mL

Explanation:

20% of 1000mL is 200. 1000mL - 200mL is 800mL

The equilibrium constant of this reaction can be called the solubility product and is written as; Ksp = [Na^+] [Cl^-]

The term equilibrium constant refers to the number that shows the extent to which reactants are converted into products.

In this case, the equilibrium constant of this reaction can be called the solubility product and is written as; Ksp = [Na^+] [Cl^-]

Learn more about equilibrium constant:https://brainly.com/question/10038290

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Answer:

T° freezing solution = -22.8°C

Explanation:

To solve this problem we apply, the Freezing Point Depression. This is a colligative property which its formula is:

T° freezing pure solvent - T° freezing solution = Kf . molality . i

i = Van't Hoff factor.

We have been informed is a nonionizing solute, so i = 1

Our solute is ethylene glycol, so le'ts determine the moles to get molality

388 g . 1 mol / 62.07 g = 6.25 moles

molality (m) = moles of solute /kg of solvent

We convert mass of solvent, water, to kg → 510 g . 1kg /1000g = 0.510 kg

6.25 mol /0.510kg = 12.25 m

We replace at formula → 0°C - T° freezing solution = 1.86°C/m . 12.25 m . 1

T° freezing solution = -22.8°C

Answer:

The energy changes in converting reactants to products is the same regardless of the route by which the chemical changes occur.

Answer:

15 km/hour

Explanation:

You need to find how fast he was going per hour.

Answer: 15

Divide. 60 ÷ 4

This gives us 15. So, Alex was going 15 mph

0001 M HCl is the same as saying that 1 *10-4 moles of H+ ions have been added to solution. The -log[. 0001] =4, so the pH of the solution =4.

Answer:

No they form nitrogen oxide which can be poisonous to some species but depending on the amount of nitrogen it can be harmful to everything living. Such as if you put it with a plant that had low nitrogen levels then there would be no carbon dioxide to filter.

Explanation:

You can downl[tex]^{}[/tex]oad the answer here

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Answer:

bacteria spoiling food

hope this helps

have a good day :)

Explanation:

Answer:

[tex]\boxed {\boxed {\sf molarity \approx 0.722 \ M \ HCl}}[/tex]

Explanation:

Molarity is the concentration measurement equal to moles per liter.

[tex]molarity=\frac{moles}{liters}[/tex]

We have 26.0 grams of HCl and 1.00 liters of water. We must convert grams of HCl to moles.

To convert from grams to moles, the molar mass is used. Usually we find these values on the Periodic Table, but they are already provided. The molar mass of hydrochloric acid is 36.0 grams per mole. Use this number as a ratio.

[tex]\frac {36.0 \ g \ HCl}{ 1 \ mol \ HCl}[/tex]

Multiply by the given number of grams: 26.0

[tex]26.0 \ g \ HCl *\frac {36.0 \ g \ HCl}{ 1 \ mol \ HCl}[/tex]

Flip the ratio so the grams of hydrochloric acid cancel.

[tex]26.0 \ g \ HCl *\frac {1 \ mol \ HCl}{ 36.0 \ g \ HCl}[/tex]

[tex]26.0 *\frac {1 \ mol \ HCl}{ 36.0 }[/tex]

[tex]\frac {26.0}{ 36.0 } \ mol \ HCl = 0.72222222222 \ mol \ HCl[/tex]

Now we know the moles and liters.

Substitute these values into the molarity formula.

[tex]molarity = \frac {0.72222222222 \ mol \ HCl}{1.00 \ L }[/tex]

[tex]molarity = 0.72222222222 \ mol \ HCl/L[/tex]

The original measurements of grams and liters have 3 significant figures, so our answer must have the same. For the number we calculated, that is the thousandth place.

The 2 tells us to leave the 2 in the thousandth place.

[tex]molarity \approx 0.722 \ mol \ HCl/ L[/tex]

1 mole per liter is equal to 1 molar, or M. Change the units.

[tex]molarity \approx 0.722 \ M \ HCl[/tex]

The molarity of this solution is approximately 0.722 M HCl