Lauryn serves a volleyball with a mass of 2.1 kg. The ball leaves her hand with a speed of 30 m/s. Find the energy of the ball.

When a neutron is fired into one of 100 atoms of uranium-235, it can cause a chain reaction.

Uranium-235 is an isotope of uranium that is fissile, meaning it can undergo nuclear fission. When a neutron collides with a uranium-235 nucleus, it causes the nucleus to become unstable and break apart into two smaller nuclei and several additional neutrons. These additional neutrons then go on to collide with other uranium-235 nuclei, causing them to undergo fission as well, releasing more neutrons in the processThis process of neutron-induced fission can continue, releasing large amounts of energy in the form of heat and light, as well as radiation. The chain reaction can be controlled or made to stop by adding or removing neutrons from the system, making the neutron to nucleus collision less likely to occur.In a nuclear power plant, the chain reaction is controlled and the heat generated by the fission reactions is used to produce steam, which drives turbines to generate electricity. In a nuclear weapon, the chain reaction is uncontrolled, resulting in a much larger release of energy in a much shorter period of time.

Learn more about Uranium-235 here:

https://brainly.com/question/5493287

#SPJ4

Answer:

The label may instruct you to shake a liquid medicine before using so that the active ingredients are evenly distributed throughout it.

Explanation:

Answer:

maybe because if somehow the liquids get separated then shaking them up would mix them back to how they are suppose to be originally.

Explanation:

The molarity of a solution of KNO₃ (molecular mass = 101) that contains 404 grams of KNO₃ in 2.00 liters of solution is 0.500 M. Option C is correct.

Molarity is defined as the number of moles of solute per liter of solution. To calculate the molarity of the given solution of KNO₃, we first need to calculate the number of moles of KNO₃ present in the solution.

Number of moles of KNO₃ = mass of KNO₃ / molar mass of KNO₃

                                             = 404 g / 101 g/mol

                                              = 4.00 mol

Now, we can calculate the molarity of the solution using the formula:

Molarity = number of moles of solute / volume of solution in liters

Molarity = 4.00 mol / 2.00 L

Molarity = 2.00 M

Therefore, the molarity of the solution is 0.500 M. Option C is correct.

To know more about the Molarity, here

https://brainly.com/question/15535677

#SPJ4

Someone kills most of the bacteria and other decomposers in a lake cycling of matter in the ecosystem then they break everything down

Decomposers are organism that breakdown dead or decaying organism they carried out decomposition and process possible by only certain kingdom such as fungi

Primary role of decomposers in ecosystem are the cycle matter by returning carbon and other matter to the ecosystem because they use oxygen in their breakdown process and at the end of the breakdown they return nutrient like carbon dioxide and nitrogen back to the ecosystem and they break everything down and when they breakdown the matter they are adding nutrient back into the earth and someone kill the bacteria and other decomposers in a lake then the cycling of matter would not go further and that's why total ecosystem get blown

Know more about ecosystem

https://brainly.com/question/28582647

#SPJ1

Sling shot, Bow and arrow

elastic energy is like a rubber band kind of

The fibers that interact best with azo dyes are generally natural fibers like cotton, wool, and silk due to their chemical composition and structure.

When dyeing with azo dyes, natural fibers such as cotton, wool, and silk tend to have the best interaction with the dye. This is because the chemical composition and structure of natural fibers allow for better absorption and bonding of the dye molecules. Cotton fibers, for example, contain hydroxyl groups which can form hydrogen bonds with azo dye molecules.

Wool and silk fibers, on the other hand, contain amino acid residues that can interact with the azo dyes through various bonding mechanisms. In comparison, synthetic fibers like polyester and nylon may not interact as effectively with azo dyes due to their different chemical structures, which can lead to less vibrant colors and reduced colorfastness.

Learn more about natural fibers here:

https://brainly.com/question/29064330

#SPJ11

Answer: lysocline

Explanation:

Lysocline is the depth in the ocean at which calcareous skeletal material first begins to dissolve. It is the depth of the ocean whereby the dissolution rate of calcite has a dramatic rise.

Lysocline is also referred to as the transition zone upper bound where the CaCO3 content drops.

For paramagnetic compounds in transition metals, the final electron of the outermost orbital—which last shell has how many electrons, or showed have d-d transitions or V.B.T in this there electron filling in the d orbital as in free state and combined state—is what is responsible for paramagnetic behavior.

If a molecule contains 10, 16, or odd numbers of electrons overall, it is said to be paramagnetic.

An atom having one or more unpaired electrons is said to be in a paramagnetized condition. The magnetic dipole moments of the electrons cause a magnetic field to draw in the unpaired electrons.

An odd electron system or a molecule with one or more unpaired electrons is paramagnetic. NO has 15 electrons, a 2. 5 bond order, 1 unpaired electron in antibonding orbitals, and 15 electrons in total. The molecule NO is hence paramagnetic.

learn more about paramagnetic behavior here  

https://brainly.com/question/16142119

#SPJ4

Because the Trichloroisocyanuric acid (TCICA) test is used to separate primary from secondary alcohols. Both major alcohols, methanol, and ethanol will undergo TCICA's oxidation process. Consequently, acetonitrile is employed as the solvent for the TCICA test rather than one of these.

What is TCICA test?

Simple primary and secondary alcohols can easily be separated from one another based on how quickly they oxidize when exposed to trichloroisocyanuric acid (TCICA). The TCICA test is carried out by adding the unknown to a solution of TCICA in acetonitrile3 containing hydrochloric acid4 and timing how long it takes for a precipitate5 to develop. Secondary alcohols respond quickly while primary alcohols react more slowly.

To learn more about Methanol and ethanol click on the given link:

https://brainly.com/question/14687410
#SPJ4

C2H2 will be left  when the burning is complete.

The equation of the reaction is; 2C2H2 + 5O2 --> 4CO2 + 2H2O

The number of moles of C2H2 reacting is = 1.20 g/26 g/mol = 0.046 moles

The number of moles of O2 is = 3.50 g/32 g/mol = 0.109 moles

Since;

2 mole of C2H2 reacts with 5 moles of O2

x moles of C2H2 reacts with 0.109 moles of O2

x = 2 mole × 0.109 moles/5 moles

x = 0.044 moles of C2H2.

It then follows that C2H2 is the reactant in excess so C2H2  will be left  when the burning is complete.

Learn more: https://brainly.com/question/9743981?

The 3 general ways by which a system in equilibrium can be reversed are by changing the concentration of the reactants of products, changing the pressure of the system, and changing the temperature of the system.

Le Chatelier's principle state that when a reaction is in equilibrium and one of the constraints that affect the rate of reactions is applied to the system, the equilibrium shifts so as to cancel out the effects of the constraints.

The constraints being referred to by Le Chatelier are concentration, pressure, and temperature. Increasing or decreasing the pressure of a system in equilibrium will shift the equilibrium to the sides with the lower moles or higher moles respectively.

Increasing the concentration of the reactants will shift the equilibrium toward the product side while increasing the concentration of the products will shift the equilibrium toward the reactant side.

In the same vein, increasing the temperature of a system will sift the equilibrium towards the product if the system itself is endothermic. If the system is exothermic, a reversal will occur.

More on Le Chatelier's principle can be found here: https://brainly.com/question/2001993

#SPJ1

Answer:

The volume increases,

Final volume is 2.1L

Explanation:

Based on Boyle's law, the absolute temperature of a gas is directly proportional to the volume of the gas.

As the balloon change increases its temperature, the volume increases

The Boyle's equation is:

V1T2 = V2T1

Where V is volume and T is absolute temperature of 1, initial state and 2, final state of the gas.

Replacing:

V1 = 2.0L

T2 = 35°C + 273.15 = 308.15K

V2 = ?

T1 = 25°C + 273.15 = 298.15K

2.0L*308.15K = V2*298.15K

2.1L = V2

Answer:

increase,2.1L

Explanation:

The molar mass of element x is 118.4 g/mol. the above equation:16.8 g / 1.20 mol = 14.00 g/mol.Therefore, the molar mass of element x is 118.4 g/mol.

To determine the molar mass of element x, we can start by finding the mass of oxygen in the compound x2o5 using the given data, which is 48.0 g. This is the mass of 2 mol of oxygen atoms since 1 mol of oxygen atoms weighs 16.00 g.So, the number of moles of oxygen in the compound x2O5 is:moles of oxygen = mass of oxygen / molar mass of oxygenmolar mass of oxygen = 16.00 g/molmoles of oxygen = 48.0 g / 16.00 g/mol = 3.00 molThe ratio of x to oxygen atoms in the compound x2O5 is 2:5.

This means that the number of moles of x in the compound is:moles of x = (2/5) × 3.00 mol = 1.20 molThe mass of x in the compound x2O5 can be calculated as:mass of x = moles of x × molar mass of xmolar mass of x = mass of x / moles of xWe are given the mass of the compound x2O5 as 64.8 g, so:mass of x + mass of oxygen = mass of the compoundmass of x + 48.0 g = 64.8 gmass of x = 64.8 g - 48.0 g = 16.8 gUsing the above equation:16.8 g / 1.20 mol = 14.00 g/molTherefore, the molar mass of element x is 118.4 g/mol.

To know more about molar mass visit;

https://brainly.com/question/12127540

#SPJ11

Answer:

It can be separated by simple fractional method

Answer:

This is an example of a food chain

Explanation:

Think of it as a chain reaction. The grass feeds and nourishes the prairie dog. Upon eating the prairie dog, the coyote gets the nutrients from both the grass the prairie dog ate and from the prairie dog itself.

Answer:

They can crack or shatter if they are dropped.

A 0.522 g sample of a metal, m, reacts completely with sulfuric acid according to M(s) + H₂SO₄(aq) → MSO₄ + H₂(g), a volue of 241 mL of hydrogen is collected over water, the water level in the collecting vessel is same as the outer level, atmospheric pressure is 756.0 torr, and the temperature is 25°C, the vapor pressure of water at 25°C is 23.8 torr. Therefore, the molar mass of the metal is 58 g/mol.

We will assume that the hydrogen is an ideal gas. The equation of ideal gas is given as -

PV = nRT

where,

P is pressure,

V is volume,

n is number of moles,

R is gas constant, R = 0.082 atm.L/mol K

T is the temperature

We know that,

P = 756.0 = 0.995 atm

V = 241 mL = 0.241 L

T = 25ºC + 273 = 298 K

0.995 x 0.241 = n x 0.082 x 298

n = 0.995 x 0.241

      0.082 x 298

n = 0.2397

      24.436

n = 0.009 mol

To calculate the molar mass, we will use

Number of moles = Given mass

                                 Molar mass

Molar mass = Given mass

                       no. of moles

Molar mass = 0.522 g/mol

                       0.009

Molar mass = 58 g/mol

Hence, the molar mass of the metal is 58 g/mol.

To learn more about molar mass,

brainly.com/question/13832826

#SPJ1

The salt that is NOT derived from a strong acid and a strong soluble base is: Ba(NO₃)₂

The substance that is not an acidic salt is: CH₃NH₃NO₃

An acidic salt is a type of salt that produces an acidic compound or element after it has been dissolved in a solvent. An acidic salt in the list of options provided is CH₃NH₃NO₃.

This compound is formed from methylamine, a weak acid, and nitric acid, a strong acid. Also, barium nitrite is formed from a strong base and weak acid.

Learn more about acidic salts here:

https://brainly.com/question/3103303

#SPJ4

Answer:

➢There are different ways to trigger the conversion of diamond to graphite, for instance by simply heating the diamond under exclusion of oxygen or even with an aimed mechanical stroke.

Explanation:

hope it will help you have a great day bye and Mark brainlist if the answer is correct

\(kai6417\)

#carry on learning

The compound that is a network solid at STP is SiC (Silicon Carbide). A network solid, also known as a covalent solid, is a chemical substance in which the atoms are bonded by covalent bonds in a continuous network extending throughout the material.

A network solid is a type of solid that is usually hard, brittle, and has a high melting point.The molecular formula of silicon carbide (SiC) is SiC, which is a covalent compound containing one atom of silicon (Si) and one atom of carbon (C) that are connected by a covalent bond. At STP (Standard Temperature and Pressure), SiC exists in the solid state as a network of atoms that are linked together by covalent bonds forming a giant macromolecular lattice.

The compound has a high melting point, is extremely hard and brittle, and is an excellent electrical and thermal conductor, and it is commonly used in the manufacturing of semiconductors, high-performance ceramics, and abrasives. C (SiC) Is correct.

To know more about chemical visit:-

https://brainly.com/question/29240183

#SPJ11

Answer:

Rr

Explanation:

An Arrhenius acid is a substance that dissociates in water to form hydrogen ions or protons.

An Arrhenius acid increases the number of\(H^+\) ions in the water.

According to the Arrhenius theory, a substance which has hydrogen atom and can easily give hydrogen ion or proton in its aqueous solution is called as Arrhenius acid.

For example, when hydrochloric acid is dissolved in water, it forms chloride ion (\(Cl^-\)) and hydronium ion (\(H_3O^+\)).

Learn more about the Arrhenius acid here:

https://brainly.com/question/9936252

#SPJ1

Answer:

The atomic number is the number of protons in the nucleus of an atom.

Explanation:

The atomic number is the number of protons in the nucleus of an atom.

What are the difference between atomic number and atomic mass ?

Atomic mass can be defined as the total number of neutrons and protons present in the nucleus of an atom,  while atomic number can be defined the number of protons present in the nucleus of atom.

Atomic mass is the average weight of an element where as atomic number of the atom, represented by a symbol A  while atomic number is represented by the letter Z.

Atomic mass can not be classified what type of element it contain while Atomic number help in classification  of an element; Different isotopes of an element classified on the basis of atomic mass where as isotopes only share the same atomic number.

Learn more about atomic number,  here:

brainly.com/question/8834373

#SPJ2

The volume of the N₂ gas at STP is 33,6 liter. 9,03 × 10²³ molecules of N2 gas equal 1,5 mol N₂.

Volume at STP or the molar volume for every gas at standard temperature and pressure is 22,4 liter/mol. To find out the volume of the N₂ gas at STP you can use the following steps:

Step 1: The first step you have to do is calculate the number of moles of the compound.

mol = number of particles ÷ Avogadro's number

     = 9,03 × 10²² ÷ 6,02 × 10²³

     = 9,03 ÷ 6,02

     = 1,5 mol

Step 2: The next step is to calculate the volume of N₂ in the STP state

Volume N₂ = n × volume at STP

                  = 1,5 mol × 22,4 liter/mol

                  = 33,6 liter

Learn more about volume at STP here: https://brainly.com/question/29796637

#SPJ1

62.66 kg of nickel must be added to 5.66 kg of copper to yield a liquidus temperature of 1200.

To calculate the amount of nickel needed to reach a liquidus temperature of 1200, we need to use the lever rule formula. This formula uses the proportions of the two metals in the alloy to determine the temperature at which the alloy will become completely liquid.

First, we need to determine the proportions of copper and nickel in the alloy. Let's assume that the final alloy will contain x kilograms of nickel.

The total mass of the alloy will be 5.66 + x kg.

Next, we need to determine the percentage of copper and nickel in the alloy. Assuming that the final alloy will contain 100% copper and nickel, we can write the following equation:

(5.66 / (5.66 + x)) × 100 = 100% - liquidus temperature drop

We know that the liquidus temperature drop is 1200 - the liquidus temperature of the copper-nickel alloy. Let's assume that the liquidus temperature of the alloy is 1300.

(5.66 / (5.66 + x)) × 100 = 100% - (1300 - 1200) / 1300 × 100

Simplifying this equation, we get:

(5.66 / (5.66 + x)) × 100 = 7.69

Solving for x, we get:

x = 62.66 kg

Therefore, we need to add 62.66 kg of nickel to 5.66 kg of copper to yield a liquidus temperature of 1200.

To know more about copper refer here:

https://brainly.com/question/24540382

#SPJ11

a)Igneous rocks, b)Sedimentary rocks c)heat and pressure d)cooling e)weathering/erosion f)heat and pressure, g)compaction/cementation

Under great heat and pressure, the magma that is formed from the volcanoes or earth surfaces forms the a)igneous rocks. The d)cooling of magma produces igneous rocks. These igneous rocks under great heat and pressure form metamorphic rocks.

Through the process of e) weathering and erosion, both igneous and metamorphic rocks turn to form sediments which on g)compaction and cementation form b) sedimentary rocks.

In this cycle rocks of different types are formed through various geological processes. Depending upon the external conditions the size and structure of rocks are determined. However, under great c)pressure and heat metamorphic rocks turn to form magma and form igneous rocks. Likewise, sedimentary rocks under f) heat and pressure form metamorphic rocks.

To know more about rocks, click below:

https://brainly.com/question/26046551

#SPJ1

The two ions present in the solution are:

1. Sodium ion, Na⁺

2. Hydroxide ion, OH¯

The correct answer to the question is the 3rd option. The sodium ion is positive, and the hydroxide ion is negative.

Ions are atoms or group of atoms which possess an electric charge.

Aqueous Sodium hydroxide, NaOH contains sodium ion and hydroxide ion.

The sodium ion is positive while the hydroxide ion is negative as illustrated below:

NaOH(aq) —> Na⁺(aq) + OH¯(aq)

From the illustration above, we can conclude that the correct answer to the question is the 3rd option. The sodium ion is positive, and the hydroxide ion is negative.

Please see attached photo for further details

Learn more: https://brainly.com/question/4414335