How many CaF are in a 1.7x10^25 please I need help fast!!

answer

.03886 grams or 3.886 x 10^‐2 grams

steps

avogadros number

6.022×10²³ atoms of ANY ELEMENT = 1 mole

whats different for every element is the number of GRAMS or MASS

1 mole of iron is 55.847 grams

2.34 x 10²² ÷ 6.022×10²³ =

.03886 grams or

3.886 x 10^‐2 grams

Answer:

59964050.33

Explanation: Use the Formula F= (m1 x m2)(G)/r^2

F=371

m1=4 x 10^22

m2=5 x 10^5

G for Earth=6.67 x 10^-11

The distance between their centers is 59964050.33 km.

By using the Gravitational force, we get

Use the Formula F= (m1 x m2)(G)/r^2

F = 371

m1 = 4 x 10^22

m2 = 5 x 10^5

G for Earth = 6.67 x 10^-11

= 59964050.33

The equation for ordinary gravitation hence takes shape: where F is the gravitational pressure acting among items, m1 and m2 are the masses of the objects, r is the distance among the centers of their hundreds, and G is the gravitational steady.

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Answer:

The density of a substance is given by dividing the mass by the volume.

The S.I units of density are kg/m³, but can be measured by other units such as g/cm³

The mass of the iron is 29 kg or 29000 g

Therefore; Density = 29000 g/ 3680 cm³

                              = 7.880 g/cm³

Hence, the density of the iron plate is 7.880 g/cm³

Explanation:

Answer:

15,000 cm^3

Explanation:

Think of 1 cm^3 as a cube that has side lengths of 1 cm. We know that 1 cm = 0.1 dm, so 1 cm^3 = 0.001 dm^3.

Using dimensional analysis, or the factor-label method, 15 dm^3 x (1 cm^3/0.001 dm^3) = 15,000 cm^3.

Answer:

X = 15d / c

Explanation:

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0.0625 mol of NO gas is formed at stp.

The balanced equation for the reaction is,

3Ag + 4HNO3 → 3AgNO3 + NO + 2H2O

Moles of nitric acid = 5 x 50 x 10 ^ -3 = 0.25 mol

From the shown balanced equation of reaction, 3 moles of silver react with 4 mole of HNO3

0.30 mol of Ag react with = 4/3 x 0.30 HNO3 = 0.4 mol HNO3

So, clearly HNO3 is limiting reagent. A reactant in a chemical reaction that determines the amount of product that is produced is the limiting reactant or limiting reagent.

now, 4 mol of HNO3 will give 1 mol of NO

0.25 mol of HNO3 will give = 1/4 x 0.25 mol NO

=  0.0625 moles of NO

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Answer:

i think its 10 miles per hour

The false statement regarding polar molecules is option B: "Their electrons are evenly distributed."

Polar molecules are characterized by an uneven distribution of electron density within the molecule. This means that the electrons are not evenly distributed, resulting in a partial positive charge in one part of the molecule and a partial negative charge in another part. This uneven distribution occurs due to differences in electronegativity .

Options A, C, and D are true statements. Option A states that they are asymmetric, meaning their shape is not symmetrical. Option C states that polar molecules can attract other polar molecules. Option D states that polar molecules generally have a high specific heat, which means they require a significant amount of energy to change their temperature.

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Answer:

2.place value is 70 000 00

According to the forces of attraction , as water passes on in water cycle its state changes from liquid to vapor and solid in form of ice and then back to liquid.

Forces of attraction  is a force by which atoms in a molecule  combine. it is basically an attractive force in nature.  It can act between an ion  and an atom as well.It varies for different  states  of matter that is solids, liquids and gases.

The forces of attraction are maximum in solids as  the molecules present in solid are tightly held while it is minimum in gases as the molecules are far apart . The forces of attraction in liquids is intermediate of solids and gases.

The physical properties such as melting point, boiling point, density  are all dependent on forces of attraction which exists in the substances.

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The mass of hydrogen peroxide, H₂O₂ that is required to produce 72.5 grams of water, H₂O is 136.9 g

First, we shall write the balanced equation. This is shown below:

2H₂O₂ --> 2H₂O + O₂

From the balanced equation above,

36.0306 g of H₂O were obtained from 68.0294 g of H₂O₂

With the above information, we shall determine the mass of hydrogen peroxide, H₂O₂ required to produce 72.5 grams of water. Details below:

From the balanced equation above,

36.0306 g of H₂O were obtained from 68.0294 g of H₂O₂

Therefore,

72.5 g of H₂O will be obtain from = (72.5 × 68.0294) / 36.0306 = 136.9 g of H₂O₂

Thus, the mass of hydrogen peroxide, H₂O₂ required is 136.9 g

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to be my friend and I think

Answer:

B

Explanation:

A tissue is a group of many similar cells (though sometimes composed of a few related types) that work together to perform a specific function. An organ is an anatomically distinct structure of the body composed of two or more tissue types. Each organ performs one or more specific physiological functions.

Answer:

Tissues are groups of similar cells that have a common function. An organ is a structure that is composed of at least two or more tissue types and performs a specific set of functions for the body. Many organs working together to accomplish a common purpose is called an organ system.

Explanation:

Tissues are groups of similar cells that have a common function. An organ is a structure that is composed of at least two or more tissue types and performs a specific set of functions for the body. Many organs working together to accomplish a common purpose is called an organ system.

Five is the total number of peaks due to singly charged ions in the complete mass spectrum of chlorine, \(Cl_{2}\)

How many peaks do \(Cl_{2}\)'s molecular ions have?

The mass spectra of compounds with a single chlorine atom show two molecular ion peaks. This is because there are two isotopes of chlorine, 35Cl and 37Cl.

The molecular ion and fragment ions will both have peaks in the mass spectrum. When a mass spectrum is interpreted, a specific molecule can be located, confirmed, or its quantity can be calculated. the base summit of a mass spectrum's tallest (strongest) peak, caused by the ion with the highest relative abundance

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Five is the total number of peaks due to singly charged ions in the complete mass spectrum of chlorine, \(Cl_{2}\).

How many peaks do 's molecular ions have?

The mass spectra of compounds with a single chlorine atom show two molecular ion peaks. This is because there are two isotopes of chlorine, 35Cl and 37Cl.

The molecular ion and fragment ions will both have peaks in the mass spectrum. When a mass spectrum is interpreted, a specific molecule can be located, confirmed, or its quantity can be calculated. the base summit of a mass spectrum's tallest (strongest) peak, caused by the ion with the highest relative abundance

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Answer:

see below

Explanation:

1. particle motion

2. The particles of a liquid can slide past one another.

3. the kinetic energy required to break forces between particles

4. increasing its temperature until it transitions from a solid to a liquid

5. A liquid becomes a gas.

[quizlet: captncrun]

Thermal energy is in the form of heat and light is always associated with the random motion of atoms and molecules. That form of kinetic energy is used to the rise in temperature.

Hence the option B is correct.

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The rate of a chemical reaction can be calculated using its rate law and the concentrations of its reactants. The rate of reaction is 7.64 x 10⁻⁵ mol L⁻¹ s⁻¹.

The rate law for the given reaction is given as:

rate = (397 mol⁻² L² s¹) [A]²[B]

where [A] and [B] are the concentrations of reactants A and B, respectively.

We are given the concentrations of A and B as 0.0615 mol L⁻¹ and 0.583 mol L⁻¹, respectively. We can substitute these values into the rate law and solve for the rate of the reaction:

rate = (397 mol⁻² L² s¹) (0.0615 mol L⁻¹)² (0.583 mol L⁻¹)

rate = 7.64 x 10⁻⁵ mol L⁻¹ s⁻¹

Therefore, the rate of the reaction is 7.64 x 10⁻⁵ mol L⁻¹ s⁻¹.

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Answer:

sanitary landfill

Explanation:

The number of moles of NaCl dissolved in the water to make the given solution is 1 mole.

A mole can be described as a unit that is employed to calculate the count of particles. The particles which are counted are usually identical entities, individually distinct.

The amount of chemical substance can be measured in the terms of the mole and the number of entities in one mole is approximately equal to 6.023 × 10 ²³.

Given, the one liter of a 1 M solution of NaCl.

The concentration of the NaCl solution = 1 M

The molarity of the given solution, \(M = n/V\)

The number of moles of NaCl, n = M ×V = \(\displaystyle {1 mol L^{-1}}\times{1L}\) = 1 mol

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The United States experienced a decrease in the real GDP, high inflation, and arising unemployment rate.

The United States appeared to be entering a recession.A recession is a decline in economic activity, characterized by declining GDP, high unemployment rates, and increased unemployment benefits. Economic analysts and the media commonly use a two-quarter consecutive decline in real GDP as a definition of a recession.

The United States is considered to have entered a recession in the 1970s, which was characterized by an energy crisis, inflation, and recession. However, by the end of the decade, the economy had improved, and it entered into the 1980s with a strong economic performance.

The 1970s were a period of high inflation, low growth, and an oil crisis, which had a significant impact on the United States economy. Therefore, it can be concluded that The United States was in the middle of an economic boom before the 1970s recession and entered a recession in the 1970s due to a decrease in the real GDP, high inflation, and arising unemployment rate.

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166 milligrams is equal to 0.166 grams.

If 2.28x10^-22 grams is the mass of 1 atom, then 0.166 grams would constitute how many atoms?

The equation we would make is as follows:

2.28x10^-22/1 = 0.166/x

- If we cross multiply and solve for x, we get the answer which is 7.28x10^20 atoms.

Answer:

2H2S(g) + 3O2(g) → 2H2O(g) + 2SO2(g) + 248kcal

Explanation:

The reaction of the problem occurs as follows:

H2S(g) + O2(g) → H2O(g) + SO2(g)

To balance the reaction we must balance oxygens:

H2S(g) + 3O2(g) → 2H2O(g) + 2SO2(g)

To balance the complete reaction:

2H2S(g) + 3O2(g) → 2H2O(g) + 2SO2(g)

As the energy is evolved, 124kcal are as product in the reactio per mole of H2S. As the balanced reaction contains 2 moles of H2S, the heat evolved is:

124kcal*2 = 248kcal:

2H2S(g) + 3O2(g) → 2H2O(g) + 2SO2(g) + 248kcal

And this is the balanced equation

Two correct answers which describe how water mixes in a thermohaline current are A. Cold water sinks under warmer water. And D. Saltier water sinks under less salty water.

Thermohaline Current is caused by variations in the seawater's surface density from pole to equator. Variations in temperature (thermal) and salinity (haline) affect the equator-to-pole surface. On Earth's climate, the thermohaline ocean currents have a significant impact on circulating heat across the planet.

In the thermohaline current, warmer, fresher water masses are less dense and float, while colder, saltier water masses are more dense and sink. Due to its higher density, this cold, salty water sinks.

So, it is obvious that the correct answers are:

A. Cold water sinks under warmer water.

D. Saltier water sinks under less salty water.

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Answer:

ok

Explanation:

Answer:

It amplifies the picture of something far away.

Explanation:

Answer:

Light from the moon reflects from large mirror, bent by small mirror, focused at focal point, magnified by eyepeice.

Explanation:

The question is incomplete; the complete question is;

Remembering that Sn2 reactions go with 100% inversion of configuration, while Sn1 reactions lead to racemization, explain why the reaction of (R)-2-butanol as in this experiment gives a mixture of about 75% (S)- 2 - bromobutane and about 25% (R)-2-bromobutane

Answer:

The reaction occurs mostly by SN2 mechanism

Explanation:

The two major routes for the synthesis of an alkyl halide involves the use of an alkene or an alkanol reacting with a hydrogen halide in both cases as the starting materials. The both routes involves the formation of a planar carbocation intermediate which is flat and planar.

Note that (R)-2-butanol is a secondary alcohol. Recall that nucleophillic substitution at a secondary carbon atom occurs mostly by SN2 mechanism. This implies that reaction of this alcohol is expected to proceed mostly by SN2 mechanism. SN2 mechanism involves the inversion of configuration, hence, we expect to have an excess of the product (S)- 2 - bromobutane in which there is an inversion of configuration compared with 25% (R)-2-bromobutane in which there is retention of configuration. This goes a long way to show us that the reaction occurs mostly by SN2 mechanism.

Secondly , steric factors also favour the formation of 75% (S)- 2 - bromobutane over 25% (R)-2-bromobutane. There is less steric hindrance in the transition state leading to the formation of (S)- 2 - bromobutane than that leading to the formation of (R)-2-bromobutane.

Answer:

4,  6,  21,  sorry

Explanation:

Answer:

The answer is

→ 3.008896419986146

Explanation:

\(18.12*10^2^3\) → \(1.812e+24\) \(atoms\)

\(1.812e+24\) \(atoms\) → \(3.008896419986146\) \(moles\)

Hope this helped! If it didn't, then I'm deeply sorry.

Answer:

( About ) 110 kilograms

Explanation:

Take a look at the attachment below,

Answer:

Explanation:

Here, we want to get the vapor pressure of the solution

Firstly, we need to get the mole fraction of water

That would be the number of moles of water divided by the sum of the number of moles of all

We have that as:

According to Raoult's law:

Thus, we have the vapor pressure of the solution as: