WILL GIVE BRAINLEST

Gravity pulled materials together forming the planets in our solar system. The inner planets consist of dense material, such as iron, which was pulled to the center of the planets. Materials such as ice, liquid and gas formed the outer planets. Scientist identify this process as:

A. Planetary Arrangement
B. Solar System Systematic Development
C. Planet Differentiation
D. Heavy Metal Gaseous Planetary Design​

The  X element in the compound = titanium

The chlorine has the molecular weight = 35.5 g/mol

In the compound of Xcl4 , there are four atoms of chlorine molecules who occupy 0.75 of total weight.

The weight of all 4 chlorine atoms = 4×35 = 140 g/mol

Now the total weight of the all chlorine atoms in the compound = 140/0.75

Now the total weight of  the compound = 186.66≈ 187

The weight of X element = 187 - 140 = 47 g /mol

if we match any element from the periodic table , so can find that the titanium has the molecular weight roughly equal to 47.

So The compound is TiCl4 whose molecular weight is 140 g/mol.

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Answer:

Ver explicacion

Explanation:

Como se mencionó en la pregunta, un catalizador aumenta la velocidad de una reacción pero él mismo no participa en la reacción.

La descomposición del peróxido de hidrógeno se muestra mediante la ecuación;

2H2O2 (l) ------> 2H2O (l) + O2 (g)

La enzima involucrada en el proceso es la catalasa.

Answer:

Carbon Dioxide

Explanation:

Carbon dioxide gets turned into oxygen

Option (b) is correct. The molarity of the resulting solution is 0.652 M. This is calculated using the expression of ideal gas equation and molarity.

12.7 l of argon at 33°c and 735 torr are dissolved in enough water to give a final volume of 0.750l. so,

P = 735.0 torr

 = (735.0/760) atm.

 = 0.9671 atm.

V = 12.7 L

T = 33.0 o C

 = (33.0+273) K

 = 306 K

We can find the  number of moles using ideal gas equation. The ideal gas law, also called the general gas equation, is the equation of state of a hypothetical ideal gas. It is a good approximation of the behavior of many gases under many conditions. The ideal gas equation is,

         P * V = n*R*T

        0.9671 atm. * 12.7 L = n * 0.08206 atm. L/mole . K * 306 K

        n = 0.4891 mole

Now, we will calculate Molarity. Molarity or molar concentration is the number of moles of solute per liter of solution, which can be calculated using the following equation,

Molarity = number of mole / final volume

 = 0.4891 mole / 0.750 L

 = 0.652 M

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The landform that is a result of the chemical weathering of carbonate rock is

While the chemical weathering of carbonate rock does occur, it can result in voids or cavities under the surface. When sedimentary layers become unstable and unable to support their own weight, a concave impression known as a sinkhole will form.

Sinkholes are prevalent in areas that have an ample supply of carbonate rock, which itself poses a danger due to its potential impact on infrastructure and human well-being. It is important to note that the chemical deterioration of carbonate rock does not typically contribute to natural developments like mountains, dunes, or rivers.

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Answer: The menu is important because usually most menus have themes that stereotype what kind of eating place it is. For example, a seafood restaurant would offer fish or sea food cuisine.

Hope this helps! :)

Answer:

no, there was not a chemical reaction

Answer:

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Answer:

what is this question??

Answer: A. Chemical energy transforms into mechanical energy.

Proof of validity is shown below.

Answer:

see explanation

Explanation:

number of moles = mass ÷ relative formula mass

e.g.

Calculate the number of moles of carbon dioxide molecules in 22 g of CO2.

Ar (relative atomic mass) of C = 12, Ar of O = 16

Mr (relative formula mass) of carbon dioxide = 12 + 16 + 16 = 44

number of moles = 22 ÷ 44 = 0.5 mol

The volume of the air mattress filled with 0.55 moles of air and has a temperature of 295 k and an absolute pressure of 3.5 kilopascals is 386L.

The volume of a gas can be calculated by using the ideal gas law equation as follows:

PV = nRT

Where;

0.0345 × V = 0.55 × 0.0821 × 295

0.0345V = 13.32

V = 386L

Therefore, the volume of the air mattress filled with 0.55 moles of air and has a temperature of 295 k and an absolute pressure of 3.5 kilopascals is 386L.

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Answer:

The answer is 34.2 L.

Explanation:

Ideal Gas Law = PV = nRT
(where P is pressure, V is volume, n is the number of moles, R is the ideal gas constant, and T is the temperature in Kelvin.)

Plug in the known values into the Ideal Gas Law equation:

3.5 kPa * V = 0.55 moles * 8.31 J/mol*K * 295 K

Finally, solve for V:

V = (0.55 moles * 8.31 J/mol*K * 295 K) / 3.5 kPa

= 34.2 L

The statements about diels alder reaction which are true are given in the explanation part.

The following statements about the Diels-Alder reaction are true:

- True: It is a reaction involving pi-electrons.
- True: It is a concerted reaction, meaning that it occurs in a single step without the formation of reaction intermediates.
- False: It is not necessarily favored by entropy considerations, as the reaction can be endothermic and enthalpy-driven.
- True: It is a [4+2] cycloaddition, meaning that it involves the formation of a 6-membered ring from a 4-carbon diene and a 2-carbon dienophile.
- False: While some Diels-Alder reactions can be thermal, others require specific conditions such as high pressure or the use of a catalyst to occur.
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Answer: In liquid water, water molecules are moving faster. They are still close together, but they are no longer stuck in a rigid pattern as they are in ice. Water molecules in liquid water are constantly sliding past and bumping into each other; they keep moving from one place to another.

Answer:

they are different forms

Explanation:

ice is solid

and water is liquid

they also have different densities

Van der Waals forces. Van der Waals forces are very weak forces between two very close surfaces.

Forces of van der Waals. When two surfaces are very close to one another, van der Waals forces are very weak.

In gases, liquefied and solidified gases, and nearly all organic liquids and solids, neutral molecules are drawn to one another by van der Waals forces, which are relatively weak electric forces.

Van der Waals interactions are nonionic forces that have a comparatively low energy of 0.5 to 1 kcal/mol.

The covalent link from its less electronegative Neighbour atom tends to drive the electron cloud toward neutral molecules with electronegative atoms like oxygen and nitrogen.

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Answer:

2x1000 = 2000

Explanation:

10^3 = 10×10×10 = 1000

exponent , the ^3 means multiply the number by itself 3 times, if it was ^4, it would be 4 times and so forth.

another trick for 10s is just put the 1 and the exponents number of 0's after the 1. so in this case, put three 0's: 1,000

Answer: 2000 or 2000.00 in decimal form if you need

Explanation: Real number to turn Scientific to Real Number you must type the exact scientific notation into a scientific calculator including the Times symbol and it should convert it In other words Multiply the decimal number by 10 raised to the power indicated. Ex: 3.456 x 10^4 = 3.456 x 10,000 = 34560

Answer:

C4H7OH + 6O2 => 4CO2 + 4H2O

Explanation:

hope This helps :)

Answer:

1.T

2.I

Explanation:

hope it help

#carry on learning

The object and description that matches is Object 2 and T.

Object 1 has no matching description.

A Fish aquarium filter is a filter whose function is to clean the water of debris, removes the toxic buildup of ammonia and nitrates, and aerates the water so that fish can in a conducive environment and breathe properly

An engine oil filter is a filter whose function is to filter and remove contaminants that may be present in the engine oil, transmission oil, lubricating oil, or hydraulic oil in order for proper functioning of the engine.

Therefore, the object and description that matches is Object 2 and T.

Object 1 has no matching description.

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Answer:

C.)Air is made up of atoms of one elements

In Experiment 2, the gas produced at the negative electrode is typically hydrogen (H2).

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Answer:

Use a translator first

Explanation:Try to translate the Foreign language and than it might be easier

The incorrect interpretation of the given balanced equation is option a.

2g s + 3g O2 →2 g SO3.

The coefficient of the reacting species and products are not showing the amount in grams.

In the balanced chemical equation of a reaction, all the reactants and products are written in their perfect stoichiometry. The number of each elements in the reactant side must be equal to their number in  product side. So that the law of conservation of mass is obeyed.

The coefficients of the reactants and products can be balanced to equate the number of each elements in both side. The coefficients represent the number of moles of the reactants and products. Sometimes they are considered to be the number of reacting atoms of each elements.

In the given reaction, 2 moles of S reacts with 3 moles of oxygen gas giving 2 moles of sulphur trioxide. Here, the amount in grams are not given. Therefore, option a is incorrect.

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Your question is incomplete. But your complete question is attached below:

The main parameter that determines the mechanical properties of concrete is the water-to-cement ratio.

The weight ratio of water to cement used in concrete is referred to as water-to-cement ratio. It is a significant element that affects the hardened concrete's overall performance, strength, and durability. In the hydration process of cement, where water chemically combines with the cement particles to form a firm matrix, the ratio is crucial. Because appropriate hydration and a higher density of the cementitious paste are ensured by a lower water-to-cement ratio, the resulting concrete is stronger and more resilient.

The cement particles can pack together more tightly and produce a denser, stronger structure by lowering the amount of water in the mixture. On the other side, a higher water to cement ratio causes the concrete to be more porous, have lower strength, and last less time. In order to avoid problems with workability during concrete installation or to compromise the strength and durability of the hardened concrete, it is crucial to maintain a balance between water and cement.

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Answer:

=> 11. d. Moon

The moon is not a light source because it does not emit its own light.

=> 12. b. The light is refracted.

13. What is the substance produced by a chemical reaction called?

=> b. Product

Answer:

The cell goes through the cell cycle/mitosis

Explanation:

The cell cycle is basically the process of dividing

G1 phase is where the cell grows in size, and make sure that everything is ready to divide.

Synthesis or the S phase is where the cell copies its DNA.

G2 phase is where the cells check that all its DNA has been correctly copied.

Mitosis or M phase, where the cell finally divides in two. If the cells keep on dividing exponentially, they will become billions of cells.

Proportion cannot be determined without the necessary data.

To determine the proportion of respondents with blood type O who are between the ages of 21 to 24, we need to find the ratio of the number of individuals with blood type O and age between 21 to 24 to the total number of respondents with blood type O.

However, the two-way table with the necessary information is not provided, making it impossible to provide an accurate proportion.

The values 0.376, 0.429, and 0.432 given in the question are potential answers, but without the actual data, we cannot determine the correct proportion.

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Energizes so D is the answer

Answer:

\(Amount\ of\ Grams = 0.2644 g\)

Explanation:

Given

Element: Sodium

\(Atoms = 6.92 * 10^{21}\)

Required

Determine the amount of grams

We start by solving for the number of moles

\(Moles = \frac{Sodium\ Atoms}{Avogadro\ Number}\)

\(Avogadro\ Number = 6.022 * 10^{23}\)

So, we have:

\(Moles = \frac{6.92 * 10^{21}}{6.022 * 10^{23}}\)

\(Moles = \frac{6.92 * 10^{21-23}}{6.022}\)

\(Moles = \frac{6.92 * 10^{-2}}{6.022}\)

\(Moles = 1.15 * 10^{-2}\) moles

Next, we calculate the amount of grams.

Mass per mol of Sodium = 22.98977g/mol

For \(1.15 * 10^{-2}\) moles of sodium

\(Amount\ of\ Grams = 1.15 * 10^{-2}\ mol * 22.98977g/mol\)

\(Amount\ of\ Grams = 1.15 * 10^{-2} * 22.98977g\)

\(Amount\ of\ Grams = 0.264382355 g\)

\(Amount\ of\ Grams = 0.2644 g\) (approximated)

Hence, there are 0.2644g of sodium in \(6.92 * 10^{21}\) atoms

Answer:

Chemical equation

Explanation:

It consists of reactants and products.