Round all answers on this assignment to exactly three decimal places (including any 0's on end).
Pick a random real number between 16.3 and 24.3:
The probability that the number will be exactly 18 is 0
The probability that the number will be between 18 and 20, inclusive, is
The probability that the number will be between 18 and 20, exclusive, is
The probability that the number will be less than 18 or greater than 20 is
The probability that the number will be less than 20 or greater than 18 is 1

Answer:

380

Explanation:

I couldn't find the answer anywhere so this is the correct answer. I got it graded.

Chloride content in metal chloride is 16.485%. For a soluble metal, 73.5 ml of 0.256 m agno3 react with the metal chloride to generate the precipitate, agcl (s). if the metal chloride sample weighs 4.562 g.

Your body needs electrolytes to function properly and to keep you hydrated and healthy. The electrolyte chloride is one of the most significant. They balance the levels of acid and base in your body along with salt and potassium. It is in charge of controlling the flow of fluids into and out of your cells. The three most significant class beginning materials in inorganic chemistry are still metal chlorides, bromides, and to a lesser extent iodides.

The moles of chlorine are 1.88 * 10-2 * 35.5.

= 0.667g

Therefore, 0.667/4.046 * 100 represents the chloride content in metal chloride.

= 16.485%

Learn more about chloride here

https://brainly.com/question/15296925

#SPJ4

Answer:

7.325 mol.

Explanation:

use the formula n=m/mr

so that makes:

234.4/16*2

which is 7.325 mol.

The speed of the rock after 10 seconds of free fall would be approximately 122 meters per second (274 mph).

What is rock?

Rock is a solid material composed of a combination of minerals, such as quartz, feldspar, mica, and other minerals. Rocks are formed by the process of weathering, erosion, and deposition of material from the Earth's crust, which is composed of rock materials. Rocks are classified based on their composition and origin. The three main types of rocks are sedimentary, igneous, and metamorphic. Sedimentary rocks form from sediments that are transported and deposited by water, wind, or ice. Igneous rocks form when molten rock material cools and crystallizes. Metamorphic rocks form when existing rocks are changed by intense heat and pressure. Rocks are an important part of the Earth's surface and are used in many applications, such as construction, landscaping and the production of certain materials. Rocks can also provide information about the geologic history of an area.

To learn more about rock

https://brainly.com/question/89259

#SPJ1

The solution's pH is 2.82 and In a 0.62 M solution, propanoic acid ionisation is 0.24%.

The Ka value for propanoic acid (HC₃H₅O₂) is 1.3 × 10⁻⁵. To calculate the pH and percent ionization of a 0.62M solution of propanoic acid, we can use the following equations:

Ka = [H⁺][C₃H₅O₂⁻]/[HC₃H₅O₂]

percent ionization = [H⁺]/[HC₃H₅O₂] x 100

(a) pH Calculation:

We can assume that the initial concentration of propanoic acid, [HC₃H₅O₂] , is equal to the given concentration of 0.62 M.

Let x be the concentration of [H⁺] and [C₃H₅O₂⁻] that forms upon dissociation of the propanoic acid. Since the propanoic acid is a weak acid, we can assume that the concentration of [H⁺] that forms is much smaller than the initial concentration of [HC₃H₅O₂]. Therefore, we can assume that the concentration of [HC₃H₅O₂] after dissociation is approximately equal to the initial concentration.

Using the Ka expression, we can set up the following equation:

1.3 × 10⁻⁵ = x² / (0.62 - x)

Solving for x using the quadratic formula, we get:

x = 0.0015 M

Therefore, the pH of the solution is:

pH = -log[H+] = -log(0.0015) = 2.82

(b) Percent Ionization Calculation:

The percent ionization can be calculated using the equation:

percent ionization = [H⁺]/[HC₃H₅O₂] x 100

From the previous calculation, we know that [H⁺] = 0.0015 M and [HC₃H₅O₂] = 0.62 M.

percent ionization = (0.0015/0.62) x 100 = 0.24%

Therefore, the percent ionization of propanoic acid in a 0.62 M solution is 0.24%.

To learn more about pH refer to:

brainly.com/question/15289741

#SPJ4

Answer:

neutral [H3O+] = [OH−] pH = 7   7.2: pH and pOH

Explanation:

At pH 7, the substance or solution is at neutral and means that the concentration of H+ and OH- ion is the same.

When the nuclide strontium-80 decays by electron capture, the name of the product nuclide is Zirconium-80, and the symbol for the product nuclide is 80Zr.

In atomic physics, electron capture is a phenomenon that occurs when an electron merges with a nucleus and a neutrino to generate a neutron. The process takes place inside the nucleus, and it is one of the mechanisms for radioactive decay of atoms.

The process of electron capture takes place when the nuclide is not in the lowest energy state. This occurs mostly in atomic nuclei with a large neutron-to-proton ratio, such as isotopes of polonium, tin, and iodine. Nuclide strontium-80 is a nuclide that has 38 protons and 42 neutrons.

When this nuclide decays by electron capture, it results in the formation of a product nuclide. The product nuclide is Zirconium-80, which has 40 protons and 40 neutrons.

To know more about electron capture, click on the link below:
https://brainly.com/question/17215285#

#SPJ11

Answer:

i think 2?

Explanation:

AI2 O2

srry if wrong but

hope this helps

There are 9.6 * 10^22 formula units in 4.43 grams of the nitrogen molecule.

We know that the number of the formula units that we have can easily be obtained from the use of the Avogadro's hypothesis. Let us note that we can see that there are 4.43 g of the nitrogen molecules.

We have the number of moles of the nitrogen molecules as;

Number of moles = mass/molar mass

= 4.43/28 g/mol

= 0.16 moles

If 1 mole of the molecule contains 6.02 * 10^23 formula units

0.16 moles would contain 0.16 * 6.02 * 10^23/ 1

= 9.6 * 10^22 formula units

Learn more about formula units:https://brainly.com/question/21494857

#SPJ1

\( \huge \mathbb \pink{ANSWER:}\)

Explanation:

Hope it helps ^•^

Each shell can contain only a fixed number of electrons: The first shell can hold up to two electrons, the second shell can hold up to eight (2 + 6) electrons, the third shell can hold up to 18 (2 + 6 + 10) and so on. The general formula is that the nth shell can in principle hold up to 2(n2) electrons

Answer:

Truck crashes into a car

Answer: How to convert only to one significant figure:

Explanation:

The method of rounding to a significant figure is often used as it can be applied to any kind of number, regardless of how big or small it is. When a newspaper reports a lottery winner has won £3 million, this has been rounded to one significant figure. It rounds to the most important figure in the number.

To round to a significant figure:

look at the first non-zero digit if rounding to one significant figure

look at the digit after the first non-zero digit if rounding to two significant figures

draw a vertical line after the place value digit that is required

look at the next digit

if it's 5 or more, increase the previous digit by one

if it's 4 or less, keep the previous digit the same

fill any spaces to the right of the line with zeros, stopping at the decimal point if there is one

Examples

Round 53,879 to 1 significant figure, then 2 significant figures.

5|3879 to 1 significant figure is 50,000

53|879 to 2 significant figures is 54,000

Notice that the number of significant figures in the question is the maximum number of non-zero digits in your answer.

Round 0.005089 to 1 significant figure, then 2 significant figures.

0.005|089 to 1 significant figure is 0.005

0.0050|89 to 2 significant figures is 0.0051

Sorry this was long,

But I hope this helped!

Given data:H2O vapor content: 13 gramsH2O vapor capacity: 52 grams at 25 degrees Celsius 13 grams at 10∘C52 grams at 30∘CFormula used to find the dew point:$$\dfrac{13}{52}=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$$$\frac{1}{4}=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$

Where A is the constantDew Point:It is the temperature at which air becomes saturated with water vapor when the temperature drops to a point where dew, frost or ice forms. To solve this question, substitute the given data into the formula.$$13/52=\dfrac{(A*3\pi)/(ln100)}{(17.27-A)}$$$$13(17.27-A)=3\pi A(ln100)$$By simplifying the above expression, we get$$A^2-17.27A+64.78=0$$Using the quadratic formula, we get$$A=9.9,7.4$$

The dew point is 7.4 since it is less than 10°C.More than 100:The term "More than 100" has not been used in the question provided.

To know more about temperature  visit:

https://brainly.com/question/7510619

#SPJ11

When an acid such as hydrochloric acid (HCl) reacts with a metal like zinc (Zn), the gas produced is hydrogen gas (H₂).

When hydrochloric acid (HCl) reacts with zinc (Zn), something interesting happens. The acid gives away its hydrogen atoms (H⁺) to the zinc. At the same time, the zinc gives away some of its electrons. As a result, hydrogen gas (H₂) is produced. The gas forms little bubbles that you might see during the reaction. The remaining zinc combines with the chlorine atoms (Cl⁻) from the acid to form zinc chloride (ZnCl₂). So, to sum it up, when acid (like HCl) and metal (like zinc) react, they create hydrogen gas and a compound called zinc chloride. The hydrogen gas bubbles out, and the zinc chloride dissolves in the remaining acid.

A single displacement reaction, also known as a metal-acid reaction, occurs when hydrochloric acid (HCl) and zinc (Zn) are in contact. This reaction results in the creation of zinc chloride (ZnCl₂) and hydrogen gas (H₂) as the zinc metal displaces the hydrogen in the hydrochloric acid. While the acid's hydrogen ions lose electrons and undergo oxidation, the zinc atoms acquire electrons and undergo reduction. It is a redox (reduction-oxidation) reaction because it includes both oxidation and reduction reactions.

To learn more about gas, refer to:

https://brainly.com/question/6140407

#SPJ4

Answer:

0.56 mi/hr

Explanation:

hope this helps

Answer:

To prepare a 0.5M 500cm^3 solution of MgSO4 from a 2.5M stock solution of MgSO4, you can use the following formula:

C1V1 = C2V2

where C1 is the concentration of the stock solution, V1 is the volume of the stock solution needed, C2 is the desired concentration of the final solution, and V2 is the final volume of the solution.

Rearranging the formula, we get:

V1 = (C2 x V2)/C1

Substituting the values we have:

V1 = (0.5 x 0.5)/2.5 = 0.1 L = 100 mL

This means we need 100 mL of the stock solution to prepare the final solution. To prepare the final solution, we can use a volumetric flask and add 100 mL of the stock solution to it. We can then add distilled water to the flask until the volume reaches 500 mL, giving us a 0.5M 500cm^3 solution of MgSO4.

Answer: it is a good conductor of electriciy tht is what wires are made of and it is a good conductor of heat so it will be able to handle the heat from the electricity

Explanation:

Answer:

Iron is a shiny, bright white metal that is soft, malleable, ductile and strong. Its surface is usually discolored by corrosion, since it combines readily with the oxygen of the air in the presence of moisture. In absolutely dry air, it does not rust

Explanation:

I hope it helps

Answer:

D

Explanation:

Acidity is from 1-6

Neutral 7

Base 8-14

In this question, we have a situation where an ice cube is placed in a glass of hot water, which means we have a situation of exothermic and endothermic reactions occurring.

The endothermic reaction will be related to the ice cube, since this cube will increase its temperature, and in order to do that, the cube needs to absorb energy, and this thermal energy will come from the hot water

The exothermic reaction is the hot water releasing this thermal energy to its surroundings, and then the temperature will decrease as well

The options that are the answers will be:

C

F

Letter B should be the opposite, -qwater = qice, and letter A doesn't show the positive or negative sign

Answer:

Polar molecules occur when there is an electronegativity difference between the bonded atoms. Nonpolar molecules occur when electrons are shared equal between atoms of a diatomic molecule or when polar bonds in a larger molecule cancel each other out

Explanation:

Answer: 129.93577

Explanation:

There-

Answer:

C. Earthquake

Explanation:

Earthquake is a likely result of the slippage along this fault boundary.

At a transform margin, rocks are moving parallel to one another. This often causes a slippage that leads to the generation of earthquakes.

Answer:

C

Explanation:

Answer:

Barium Chloride + Aluminum Sulfate = Barium Sulfate + Aluminum Chloride

Explanation:

Hopefully this helps you!!

Don't be afraid to correct me if i'm wrong! :)

Answer:

A

Explanation:

good luck

Answer:

yeah someone explain

Explanation:

tttttttttt%ttttttt

Answer:

A heat exchanger is device which is designed to transfer heat from one matter to another. In nuclear power plants, these heat exchangers are used to pass heat from primary system to the secondary system. In the process they produce steam from water, they are also called steam generators or pressurized water reactors.

Answer:

The woodpecker population would start to decrease because of natural selection

Explanation:

Answer:

the mass of an does not change with speed but changes when we add or cut a part of it.

Explanation:

Answer:

weight

Explanation: