FUСR THE WORLD SAY AND TO 4142-414=? HELPPPPPPPPPPPPP

Answer:    World 5,306,425,000 6,895,889,000 7,503,828,180

1 China 1,139,060,000 1,341,335,000 1,384,688,986

2 India 873,785,000 1,224,614,000 1,296,834,042

3 United States 253,339,000 310,384,000 329,256,465

Explanation:

Answer:  determine how they break

Explanation:

hope this helps!

Answer: 2  

Explanation:

Answer:

36.8g of Zinc hydroxide

Explanation:

Based on the reaction:

ZnO + H₂O → Zn(OH)₂

Where 1 mole of zinc oxide reacts with 1 mole of water to produce 1 mole of zinc hydroxide.

Moles of 30.1g of ZnO (FW = 81.38g/mol) are:

30.1g ZnO ₓ (1mol / 81.38g) = 0.370 moles of ZnO

And moles of 6.7g of H₂O (FW = 18.01g/mol) are:

6.7g H₂O ₓ (1mol / 18.01g) = 0.372 moles of H₂O

As 1 mole of ZnO reacts per mole of H₂O, limiting reactant is ZnO because has a less number of moles than water.

Thus, moles of Zn(OH)₂ produced are 0.370 moles.

As Molar mass of Zinc hydroxide is 99.424 g/mol, there are formed:

0.370 moles Zn(OH)₂ ₓ (99.424g / mol) =

Answer:

CaCl,2

the 2 goes to the bottom right side

The new pressure in the cylinder of the car engine as the piston is moved to the top is 1062.55kPa

Boyle's law states that "volume of a given quantity of gas is inversely proportional to its pressure  as long as temperature remains constant.

It is expressed as;

P₁V₁ = P₂V₂

Given the data in the question;

To determine the new pressure as the piston is at the top of the cylinder, we substitute our given values into the expression above.

P₁V₁ = P₂V₂

P₂ = P₁V₁ / V₂

P₂ = ( 1.0067107atm × 0.6250L ) / 0.0600L

P₂ = 0.629194188Latm / 0.0600L

P₂ = 10.4865698atm

P₂ = 1062.55kPa

Therefore, the new pressure in the cylinder of the car engine as the piston is moved to the top is 1062.55kPa

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The mass of the asteroid is C. 1.2 x \(10^{12}\) Kg

To find the mass of the other asteroid, we can rearrange the equation for the gravitational force between two objects:

F = (G * m1 * m2) / \(r^{2}\)

where F is the force of gravity, G is the gravitational constant, m1 and m2 are the masses of the two asteroids, and r is the distance between them.

Given that the distance between the asteroids is 75000 m, the force of gravity between them is 1.14 N, and one asteroid has a mass of 8 x \(10^{7}\) kg, we can substitute these values into the equation and solve for the mass of the other asteroid (m2):

1.14 N = (6.67430 × \(10^{-11}\) N \(m^{2}\)/\(Kg^{2}\) * 8 x \(10^{7}\) kg * \(m2\)) / \((75000 m)^{2}\)

Simplifying and solving the equation, we find that the mass of the other asteroid (m2) is approximately 1.2 x \(10^{12}\) kg. Therefore, Option C is correct.

The question was incomplete. find the full content below:

Two asteroids are 75000 m apart one has a mass of 8 x \(10^{7}\) kg if the force of gravity between them is 1.14 what is the mass of the asteroid

A. 3.4 x \(10^{11}\) kg

B. 8.3 x \(10^{12}\) kg

C. 1.2 x \(10^{12}\) kg

D. 1.2 x \(10^{10}\) kg

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Answer: Single Replacement

Explanation:

This is single replacement because the Fluorine replaces Bromine in the Sodium Bromide solution. This happens because Fluorine is higher on the halogens activity series.

In the electrical arrangement, the 6p subshell of the radon element contains 6 electrons.

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The society with the least negative effects on the environment is probably the one with a small population, traditional farming methods, no access to contemporary technology, and self-sufficient food production.

This is due to the fact that their way of living is less dependent on modern infrastructure and technology, both of which have a negative impact on the environment. Additionally, their agricultural methods are probably more environmentally friendly and sustainable.

The environmental effects of the other societies on the list would all be greater. Because of the use of fossil fuels and the production of products that require a lot of resources, a big, industrialized society with high levels of consumption would have a significant carbon footprint.

It would still take a lot of resources to maintain its infrastructure and create products in a less populous, highly industrialized society with moderate consumption levels, which would have a negative effect on the environment.

Given that the size of the population alone would necessitate significant resource consumption and infrastructure development, a big population with moderate industrialization and consumption levels would also have a big effect on the environment.

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Answer:

antimony

Explanation:

Since the p sublevel is partially filled, it is in the p-block. There are five electrons in the outermost energy level, so it has 5 valence electrons. The element is antimony, a metalloid. The element is in Period 7.

Answer:

29.9 moles

2C²H¹⁰ needs 13 moles of O²

4.6 C⁴H¹⁰ needs X moles of O²

X= 13× 4.6 ÷ 2 = 59.8 ÷ 2 = 29.9 moles

29.9 moles of O2 are required to react completely with 4.6 mol of C4H10.

2C²H¹⁰ needs 13 moles of O²

4.6 C⁴H¹⁰ needs x moles of O²

x= 13× 4.6 ÷ 2

= 59.8 ÷ 2

= 29.9 moles

A mole is described as the quantity of a substance that contains exactly 6.02214076 X1023 primary entities of the given substance. as a result, a mole of a substance is referred to as the mass of a substance containing the equal wide variety of essential gadgets as atoms in exactly 12.000 g of 12C.

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0.72 moles SO2 contains 4.33 × \(10^{23}\) molecules.

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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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The structural formula of butanol is C4H9OH. It consists of a chain of four carbon atoms, with a hydroxyl (-OH) group attached to one of the carbon atoms. Butanol has several structural isomers, which have the same molecular formula but different structural formulas.

A structural isomer is a compound that has the same molecular formula as another compound but has a different arrangement of its atoms. A string of 4 C atoms are bonded above, below, left, and right to H, except the second C, which is bonded below to O, which is bonded below to H is a structural isomer of butanol.

This is called butan-2-ol. The structural formula of butan-2-ol is CH3CH(OH)CH2CH3. In this isomer, the hydroxyl group is attached to the second carbon atom in the chain, whereas in butanol, the hydroxyl group is attached to the first carbon atom in the chain.

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Answer:

the boiling point of solution at 3 decimal point is 100.329०C Ans.

Explanation:

given data -

molality of Nacl = 0.321 m

molal boiling point elevation constant (Kb) =0.512०C/m

# formula of change of boiling point of sample =

∆ Tb =i × Kb × m

Kb = molal boiling point of elevation constant

m = molality

i = vont's hoff factor.

Nacl is strong electrolyte and its 100% dissociate so the value of i for Nacl is 2

put value in the formula

∆ Tb = 2 × 0.512 ०C/m × 0.321m

= 0.3287

= 0.329०C

∆Tb = T'b - Tb

T'b = boiling point of solution

Tb= boiling point of solvent( water)

0.329०C = T'b - 100०c ( boiling point of water = 100०C)

T'b = 0.329०C + 100०C

= 100.329०C

hope this helps

Answer:

the volume of 50.2 grams of co2

would simply be

50.2÷48

Answer:

Nobelium or Beryllium

Answer:

The correct option is A

Explanation:

Water from a river is used for many activities in a community. These activities could include (but not limited to) tourism, drinking for animals, local transport, irrigation for nearby farming, recreation (as in swimming), habitat for some living organisms among others. Rivers are not limited by what limits the influence of oceans such as taste (it's saltiness, which cannot be used in farming also) and wave current.

Answer:

A saturated solution is a mixture in which the maximum amount of a given solute has been dissolved into the solvent. ... At this point adding more solute will not change the concentration of the solution; adding more solute will simply result in more solid at the bottom of the solution.

Answer:

will not change

Explanation:

A saturated solution is a mixture in which the maximum amount of a given solute has been dissolved into the solvent. ... At this point adding more solute will not change the concentration of the solution; adding more solute will simply result in more solid at the bottom of the solution.

If we add one or two hydrogen ions to a polyatomic ion that has a 3-charge, as the phosphate ion (PO₄3-), it will still be a polyatomic ion. (Three H+ would entirely cancel out the 3-charge, turning it into a neutral molecule and removing it from the category of polyatomic ions.

As a result, the carbonate ion has 2 more electrons than protons due to its negative charge. The doubly bonded oxygen in the carbonate ion is neutral, whereas each single bonded oxygen has a negative charge. This is the cause of the total charge of "-2," then.

An essential component of the atmosphere of stars like the Sun is the hydrogen anion.

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Answer:

A current scientific theory would be revised based on the new findings.

Explanation:

The correct answer would be that a current scientific theory would be revised based on the new findings.

Theories are formed when findings from different independent researchers confirm the same information on a particular topic. When new information emerges that oppose scientific theories, the theories are not outrightly thrown away. Instead, they are revised based on the new findings and adjusted accordingly. The initial theories still form the backbone of the new ones.

Hence, if new technologies gave us information that challenged what scientists currently understand about natural selection, the theory would be revised based on the new findings.

Answer: 8.604 x1022 atoms

Explanation:

Answer:

Using your answer from Part A, calculate the volume of a mole of Na atoms (in cm3/mol ). Assume that the entire volume is occupied by Na atoms leaving no gaps or holes between adjacent atoms. (Answer A is V= 2.70*10^7)

The identity of a cation solution that produces a mix of red and yellow colors in a flame test, but appears red when viewed through a cobalt filter, can be attributed to the presence of the strontium (Sr) cation.

During a flame test, different metal cations emit characteristic colors due to the excitation of electrons and their subsequent emission of light. Strontium, in particular, is known to produce a vibrant red color in flame tests.

The presence of both red and yellow colors indicates the possibility of multiple metal cations in the solution. While the specific metal responsible for the yellow color is uncertain, it could potentially be sodium or another metal that emits a yellow flame.

When the flame is viewed through a cobalt filter, which absorbs yellow wavelengths of light, the yellow color is filtered out, resulting in only the red color being observed. Since strontium is known for its distinctive red flame color and its emission is not affected by the cobalt filter, it is likely the metal cation responsible for the observed red color. Therefore, based on these characteristics, the identity of the cation solution is most likely strontium (Sr).

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less than the force of gravity from mars to earth

Answer:

To find the pressure at which the solubility of the gas would be 0.2 g/L, we can use the concept of Henry's Law. Henry's Law states that the solubility of a gas in a liquid is directly proportional to the pressure of the gas above the liquid.

The equation for Henry's Law is:

S = k * P

Where:

S is the solubility of the gas in the liquid (in g/L)

k is the Henry's Law constant (which depends on the specific gas and liquid)

P is the partial pressure of the gas above the liquid (in atm)

We can set up a proportion to find the unknown pressure (P2) when the solubility (S2) is 0.2 g/L:

S1 / P1 = S2 / P2

Substituting the given values:

0.028 g/L / 3.5 atm = 0.2 g/L / P2

Now we can solve for P2:

P2 = (0.2 g/L * 3.5 atm) / 0.028 g/L

P2 = 24.5 atm

Therefore, at a pressure of 24.5 atm, the solubility of the gas would be 0.2 g/L.

Compared to 2,3,4-trifluoropentane, the nonane's carbon chains are longer.

A substance's molar mass is defined as its molecular weight in grams. By adding the molar masses of a substance's constituent atoms, we may get the substance's molar mass. Then, to convert between mass and the quantity of moles of the material, we may utilize the computed molar mass.

Adding the atomic masses of a particular substance results in the calculation of molar mass. Below each element's symbol on the periodic table is a designation of the mass of that specific element. The molar mass is obtained by averaging the atomic masses obtained from the periodic table.

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A. The incandescent light bulb does not create as much as much light energy as the fluorescent light bulb.

Incandescent light bulbs have the drawback of wasting a lot of electricity due to heat. All the energy used to create heat is a waste because heat does not produce light, and the light bulb's intended function is to produce light. Thus, incandescent lamps are quite ineffective.

Mercury vapor is excited by an electric current in the gas to produce short-wave ultraviolet light, which illuminates a phosphor coating inside the lamp. Compared to an incandescent lamp, a fluorescent lamp is far more efficient at converting electrical energy into usable light.

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The solubility of many substances increases with temperature, there are exceptions. Some substances exhibit a decrease in solubility with temperature due to specific interactions or changes in solute-solvent interactions at higher temperatures.

The increase in solubility of many substances with temperature can be attributed to the effect of temperature on the kinetic energy and intermolecular interactions of molecules.

On a microscopic scale, an increase in temperature corresponds to an increase in the kinetic energy of molecules. As the kinetic energy increases, the molecules move more rapidly and collide with each other and with the solvent molecules more frequently and with greater force.

These increased collisions and kinetic energy result in enhanced molecular interactions and overcome the forces holding the solute particles together. This increased energy disrupts the intermolecular forces within the solute, allowing the solvent molecules to surround and interact more effectively with the solute particles, leading to greater solubility.

Additionally, an increase in temperature can cause solvent molecules to move more freely, reducing their cohesion and allowing them to interact more readily with solute particles.

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