How are transuranium elements made?

Warm air and water both tend to rise while cooler air and water sink different parts of the oceans are heated unevenly, this causes the water to move in convection currents. Therefore, option A is correct.

The term current is defined as a stream of charged particles, such as electrons or ions, traveling through an electrical conductor or a vacuum.

Warm air and water both tend to rise while cooler air and water sink different parts of the oceans are heated unevenly, this causes the water to move in convection currents.

Thus, option A is correct.

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Your question is incomplete, probably your question was

Warm air and water both tend to rise while cooler air and water sink. When different parts of the oceans are heated unevenly, this causes the water to

a.move in convection currents

b.form a tsunami.

c.stay in the same place.

d.mix together in the water cycle.

Answer:

When temperature increases the volume decreases too

Explanation:

In chemical read tion when the temperature increase it compress the volume of the chemical. I can be measured in degree centi grade

Converting the units of a measurement is an essential skill that everyone should have. In our daily life, there are numerous situations where we might need to convert the units of measurement. One of the common examples can be when baking. To get the desired outcome, it is crucial to have the right amount of ingredients.

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a) At equilibrium, the reverse reaction is faster. The equilibrium would favor products since the reaction is exothermic (heat is released).

b) The reaction coordinate diagram shows the potential energy of the reactants and products, with the peak indicating the energy needed to go from reactants to products.

c) A catalyst would lower the energy needed to go from reactants to products, making the reaction faster.

d) The addition of a catalyst would not change the value of the equilibrium constant.

e) The equilibrium constant would increase with increasing temperature, due to increased molecular motion.

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Acid–base reaction is other wise known as neutralization reaction. This is a reaction in which an acid reacts with a base to produce salt and water only.

Considering the options given in the question above, only option A fits into the discription of an acid base reaction as the product contains salt (NaBr) and water (H₂O) only.

Thus, option A is the right answer to the question.

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The heat that is transferred to the surroundings is 5.7 * 10^2 kJ

To calculate the heat transferred to water, you need to know the mass of water, the change in temperature of the water, and the specific heat capacity of water. The formula for calculating the heat transferred to water is:

Q = m * c * ΔT

Where:

Q is the heat transferred to water, measured in joules (J)

m is the mass of water, measured in kilograms (kg)

c is the specific heat capacity of water, measured in joules per kilogram per degree Celsius (J/kg°C)

ΔT is the change in temperature of the water, measured in degrees Celsius (°C)

By using;

H = mcdT

H = 3785 g * 4.184 * (79.4 - 115.5)

H = -5.7 * 10^2 kJ

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The first step in describing and analyzing most phenomena in physics involves the careful drawing of a free-body diagram. Free-body diagrams have been used in examples throughout this chapter. Remember that a free-body diagram must only include the external forces acting on the body of interest. Once we have drawn an accurate free-body diagram, we can apply Newton’s first law if the body is in equilibrium (balanced forces; that is.

Answer:

5.30x10²³g

Explanation:

A mole can be understood as an amount of something.

One mole of eggs are 6.022x10²³ eggs

One mole of atoms are 6.022x10²³ atoms

One mole of molecules are 6.022x10²³ molecules

And 1 mole of M&M are 6.022x10²³ M&M. As 1 M&M weighs 0.88g, 1 mole will weigh:

0.88g*6.022x10²³ =

One mole of M&Ms will weigh  5.3 x 10²³ grams.

The given parameters

One mole of every substance contains 6.022x10²³ atoms of the substance.

Weight of an M&M, implies an atom of M&M.

1 atom --------- 0.88 grams

 6.022x10²³ atoms = ?

= 0.88 g x  6.022x10²³

= 5.3 x 10²³ grams.

Thus, one mole of M&Ms will weigh  5.3 x 10²³ grams.

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Answer

The complete nuclear reaction is

Explanation

The incomplete equation is that of beta radiation; where the Mg emits an electron. Beta radiation is the emission of electrons or positrons, alpha radiation is the name for the emission of an alpha particle in fact an helium nuclei, and gamma radiation is the term used for the emission of energetic photons.

The complete nuclear reaction is shown below:

Answer:

Under magnification, the ovary contents appear as a mixture of clear, yellow, and pink liquid with small round cells. The cells are of varying sizes, some smaller than a human hair. There are also small, translucent, bubble-like structures present. The slide also shows small clusters of cells with a dark center.

When we talk about radioactive decays, we will have 4 main types of decays:

1. Alpha decay: in this case, we have an atom losing 2 protons and 2 neutrons, therefore its atomic number will decrease by 2 and atomic mass will decrease by 4

2. Beta decay: in this case, we have a neutron turning into a proton and releasing an electron, therefore we will have an increase in the atomic number of the atom

3. Positron emission: similar case to number 2, but now, we have a proton turning into a neutron and we have the release of a positron, therefore in this case, we will have the atomic number down by 1

4. Gamma decay: In this case, we have changes in neither atomic number nor atomic mass, because we don't have the release of particles, but instead we have the release of gamma rays, which are a very radioactive type of rays

For the equation number 1, we have:

18/8 O -> 14/6 C + 4/2 He

For equation number 2, we have a neutron capture, this is a process to produce Plutonium 239, which starts with Uranium 238 capturing a neutron, becoming Uranium 239, after this, 239 U will go through Beta decay, where a neutron turns into a proton, and release an electron, therefore we will have Neptunium 239, 93 protons and 146 neutrons, Neptunium 239 will undergo another beta decay, and become Plutonium 239, 94 protons and 145 neutrons

238/92 U + 1/0 n -> 239/92 U

For equation number 3, we have:

18/8 O + 1/1 H -> 19/9 H

Answer:

D is correct

Explanation:

EDG 2021

Answer:

12263 P6 4S to 3D 42223 2222 as one as bye

Answer:

The correct answer is the imperial system.

Explanation:

Only three countries in the world, that is, the United States, Myanmar, and Liberia use the imperial system. These include measurements in the form of inches, ounces, Fahrenheit, and feet. In the imperial system, the distances, height, weight, or area measurements are used eventually that traced back to everyday items or parts of the body.  

In comparison to other metric systems, the units used in the imperial system are not further differentiated easily into parts of hundreds or thousands, and are thus, regarded of less use in comparison to other metric systems by some. The real follower of the imperial system at present in the world is the United States.  

Answer: the electrostatic potential energy is -3.26 × 10⁻¹⁸ J

Explanation:

Given the data in the question;

I think the value of electrostatic potential energy of calcium sulfide CaS formed will be less(more negative) than KCl because the Ca2+ and S2- ions has more charge that is +2 and -2 respectively when compared to Kcl which has +1 and -1 charge.so it will be more negative.

radius = r\(_{ca+2}\) + r\(_{s-2}\) = 100 + 184 = 284 pm = 2.84 × 10⁻¹⁰ m

we know that; k = 2.31 × 10⁻²⁸ J

q1 = 2  ( charge on Ca⁺² )

q2 = -2( charge on S⁻²)

so

Ep = k × q1q2/r

so we substitute

Ep = 2.31 × 10⁻²⁸ × (+2×-2) / 2.84 × 10⁻¹⁰

Ep = (2.31 × 10⁻²⁸ × -4) / 2.84 × 10⁻¹⁰

Ep = -9.24 × 10⁻²⁸ / 2.84 × 10⁻¹⁰

Ep = -3.26 × 10⁻¹⁸ J

Therefore, the electrostatic potential energy is -3.26 × 10⁻¹⁸ J

Based on the data provided, the electrostatic potential energy is -3.26 × 10⁻¹⁸ J

The electrostatic potential energy is the work done in moving the charge from infinity to that point against the electric field.

The electrostatic potential energy between any two charges q1, q2 separated by distance r is derived from Coulomb’s law and mathematically given as:

where

From the data provided:

ionic radii of Ca2+ r1 = 100 pm

ionic radii of S2– = 184 pm.

Chargeon Ca2+ = +2

Charge on S2_ = -2

From the data above, it most likely that the value of electrostatic potential energy of calcium sulfide CaS formed will be less(more negative) than KCl because the Ca2+ and S2- ions has a greater charge of +2 and -2 respectively compared to Kcl which has +1 and -1 charge.

Calculating the electrostatic potential energy, Ep:

radius = r1 + r2 = 100 + 184 = 284 pm

r = 2.84 × 10⁻¹⁰ m

k = 2.31 × 10⁻²⁸ J

q1 = 2  ( charge on Ca⁺² )

q2 = -2( charge on S⁻²)

Then:

Ep = k × q1q2/r

Substituting the values above in the equation:

Ep = 2.31 × 10⁻²⁸ × (+2 ×-2) / 2.84 × 10⁻¹⁰

Ep = (2.31 × 10⁻²⁸ × -4) / 2.84 × 10⁻¹⁰

Ep = -9.24 × 10⁻²⁸ / 2.84 × 10⁻¹⁰

Ep = -3.26 × 10⁻¹⁸ J

Therefore, the electrostatic potential energy is -3.26 × 10⁻¹⁸ J.

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The fact that hydrogen peroxide slowly decomposes over time without the addition of any other chemical indicates that the hydrogen peroxide solution that can be purchased in stores is not pure and has been stabilized with other chemicals to prevent it from breaking down too quickly. This is common practice, as pure hydrogen peroxide is unstable and can be dangerous to handle.

One potential safety hazard associated with hydrogen peroxide solutions that have been stabilized with other chemicals is that they can sometimes release oxygen gas when they come into contact with other substances. This can cause the solution to bubble and froth, which can make it difficult to measure and handle safely. In extreme cases, the release of oxygen gas can cause the solution to become pressurized and explode. It is important to handle hydrogen peroxide solutions with care and to follow the instructions on the label to avoid potential hazards.

The pressure, in atmospheres, exerted by a 0.100 mol sample of oxygen in a 2.00 L container at 273 °C is 2.24 × 10⁰ atm.

The pressure of a substance can be calculated using the following formula;

PV = nRT

According to this question, the pressure, in atmospheres, exerted by a 0.100 mol sample of oxygen in a 2.00 L container at 273 °C can be calculated as follows:

P × 2 = 0.1 × 0.0821 × 546

2P = 4.48266

P = 2.24 × 10⁰ atm

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Hydrogen is formed at the negative electrode (cathode) and oxygen at the positive electrode (anode) and the concentration of sulfuric acid increases.

Direct electric current is used in the electrolysis process to accelerate chemical reactions that would not naturally occur.

It can be seen that as the electrolysis proceeds the dilute sulfuric acid gets slightly more concentrated as only water is removed from the electrolyte as hydrogen and oxygen.

The ions present in the dilute acid are H+(aq), OH–(aq) and SO4 2–(aq).

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suggest an explanation of why the concentration of the sulfuric acid increases during electrolyis

Answer:

atoms have no overall charge. this is because they contain equal numbers of positive protons and negative electrons

its dry i think

Explanation:

it might be dry

Answer:

Neutralization reactions occur when two reactants, an acid and a base, combine to form the products salt and water.

Explanation:

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Answer: Water and NaCl is always formed

Explanation:

I hope this helped!

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Answer:

The maximum number of valence electrons is 8

Explanation:

element 3 has 3 valence electrons. 7 has 5, and 10 has 8, as we increased the number of electrons in element 11, the number of valence electrons became 3, and the pattern went on, it cannot exceed 8.

The electron configuration of an atom depicts the arrangement of electrons scattered throughout the orbital shells and subshells.

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A negative charge indicates that an item contains more electrons than protons, that's why an object might be classified as having a negative electrostatic charge.

An item has an excess of electrons and is considered to have a negative charge when it obtains electrons. When an item loses electrons, it is considered to have a positive charge because it lacks electrons. Static electricity is the accumulation of electric charges.

Transferring electrons to or taking them away from an item produces an electrical charge. When electrons are introduced to an item, it acquires a negative charge due to the negative charge of electrons.

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Answer:48

Explanation:

Answer:  3. 0.125 X 10”23 molecules

Explanation:

Explanation:

To form bonds with noble gases, a lot of energy is required to form those bonds. Halogens, on the other hand, are extremely reactive. ... The halogens tend to be very reactive, while the noble gases are in no way reactive and don't bond easily, if at all.

Answer:

0.273 mol H₂O

General Formulas and Concepts:

Chemistry - Atomic Structure

Explanation:

Step 1: Define

4.92 g H₂O

Step 2: Identify Conversions

Molar Mass of H - 1.01 g/mol

Molar Mass of O - 16.00 g/mol

Molar Mass of H₂O - 2(1.01) + 16.00 = 18.02 g/mol

Step 3: Convert

\(4.92 \ g \ H_2O(\frac{1 \ mol \ H_2O}{18.02 \ g \ H_2O} )\) = 0.27303 mol H₂O

Step 4: Check

We are given 3 sig figs. Follow sig fig rules and round.

0.27303 mol H₂O ≈ 0.273 mol H₂O

The section that represents the phase of water with the highest kinetic energy is the gas phase or vapor phase.

Gas phase or vapor phase section is above the boiling point curve, which separates the liquid and gas phases. At this point, the temperature is at or above 100°C (at standard atmospheric pressure), and the kinetic energy of the water molecules is sufficient to overcome the intermolecular forces holding them in the liquid phase and escape into the gas phase. The gas phase has the highest kinetic energy because the water molecules in this phase are more widely separated and move more rapidly than in the liquid or solid phases. The gas phase is also characterized by the highest entropy or disorder, as the molecules are free to move in any direction and occupy a large volume. The section that represents the phase of water with the highest kinetic energy is  gas phase or vapor phase.

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