Tenisha solved the equation below by graphing a system of equations. help!!!!!

Answer:

where is the diagram sisters

Answer: The correct answer is heat will flow from the boiling water into the frozen metal.

Explanation:

According to the law of conservation of energy, energy cannot be destroyed nor created but it can be transformed from 1 form to another form.

There are 3 processes of heat transfer:

The heat moves from a hot surface to a cold surface to maintain equilibrium.

We are given:

A metal is placed in a freezer (cold object) and another metal is placed in an oven (hot object) and then both the metals are placed in boiling water.

Initially, the heat will flow from the boiling water (hot object) into the frozen metal (cold object) to maintain equilibrium

Hence, the correct answer is heat will flow from the boiling water into the frozen metal.

Answer:

alloy,copper,gold, silver,cobalt

Explanation:

Answer:A

Explanation:

Option D. They all have extremely long half-lives makes radioisotopes useful for dating objects.

Radioisotopes exist as radioactive isotopes of an element. They can also be described as atoms that include an unstable combination of neutrons and protons, or surplus energy in their nucleus.

A radionuclide exists as a nuclide that contains excess nuclear energy, causing it unstable. This excess energy can be utilized in one of three methods: emitted from the nucleus as gamma radiation; assigned to one of its electrons to terminate it as a conversion electron; or utilized to create and emit a unique particle from the nucleus.

Radioactive isotopes of radium, thorium, and uranium, for example, exist found naturally in rocks and soil. Uranium and thorium also happen in trace amounts in water. Radon, induced by the radioactive decay of radium, stands present in the air.

Hence, Option D. They all have extremely long half-lives makes radioisotopes useful for dating objects.

To learn more about radioisotopes refer to:

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ahí esta la respuesta espero que te sirva

Answer:

6

Explanation:

Electrons are floating around, and protons are outside of the nucleus center. The ones in the center are neutrons. I hope this helps.

The period of development from fertilized egg to birth is known as [tex]{ \bf{ \underbrace{prenatal\: development}}}[/tex].

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Explanation:

just use the molar ratios to figure it out. Notice, you have to balance the chemical equation.

Answer:

A

Explanation:

Alkanes undergo substitution reaction with halogen molecules in the presence of light. This reaction occurs by free radical mechanism and the initiation step is the formation of the halogen radical.

The propagation steps involves the abstraction of a hydrogen from the alkane by the halogen radicals.

The termination steps involves the coupling of alky radicals.

Thus for the reaction of ethane and chlorine;

C2H6 + Cl2 -------> C2H5Cl + HCl

Answer:

it would be option A

Explanation:

This is becuase if you look at the chart you can see tyhat the group of rats that got feed to vitamans did gain more wati then the ones on the normal diet.

Answer:

Number B is Answer. The motion of the molecules increases

Answer:

D. Point into Leaf: water(H₂O), carbon dioxide (CO₂) sunlight, Point away from leaf: Sugars, oxygen (O₂)

Explanation:

Photosynthesis is the process used in the production of chemical energy in the form of energy containing organic compounds and oxygen from atmospheric carbon dioxide and liquid water enabled with the energy captured from light (mainly Sunlight) by the chlorophyll in green plants and other organisms

The basic chemical reaction involved in a photosynthesis reaction is presented as follows;

[tex]{}[/tex]                                    Sunlight

[tex]{}[/tex]                                          ↓

[tex]{}[/tex]       CO₂           +  H₂O (l)  →   C₆H₁₂O₆   +    O₂

Carbon dioxide [tex]{}[/tex]  Water        Glucose       Oxygen    

Answer:

Have a nice day :)

Explanation:

the chloroplast

Photosynthesis occurs in the chloroplast, an organelle specific to plant cells. The light reactions of photosynthesis occur in the thylakoid membranes of the chloroplast. Electron carrier molecules are arranged in electron transport chains that produce ATP and NADPH, which temporarily store chemical energy.

water is to gas as liquid is to solid

Answer:

0.978L

Explanation:

Using Boyle's law equation as follows;

P1V1 = P2V2

Where;

P1 = initial pressure (atm)

P2 = final pressure (atm)

V1 = initial volume (L)

V2 = final volume (L)

According to the provided information,

P1 = 1.49 atm

V1 = 5.00 liters

P2 = 7.62 atm

V2 = ?

Using P1V1 = P2V2

1.49 × 5 = 7.62 × V2

7.45 = 7.62V2

V2 = 7.45/7.62

V2 = 0.978L

Answer:

a helium nucleus emitted by some radioactive substances, originally regarded as a ray.

Explanation:

Answer:

They're charged particles Identical to the Helium Nucleus

Having 2 protons and 2neutrons and having a Mass of 4.

They're Heavy and slow(speed)In comparison to Beta particles and gamma rays

Usually Emitted from nucleus of radioactive nuclides during decay

Answer:

b because it is just 0.2 g and powdered sugar has more contact surface than granulated sugar or sugar cube

The solubility can be given as the amount of solute that can be dissolved in the 100 ml of the solution. The most rapidly dissolved sugar in water is 0.2 gram powdered sugar.

The contact surface can be given as the area of the compound that is in direct contact with the solution.

The solubility of the compound is found more in the solute with increased surface area.

The surface area of powdered sugar will be maximum, as more granules of the sugar will be in contact with the water than the cube or the granulated sugar.

Thus, the most rapid dissolution in water is found with 0.2 grams of powdered sugar. Thus, option B is correct.

Learn more about solubility, here:

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Answer:

D

Explanation:

Radioactivity means

the emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei

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Answer:

The value of N would be 4.

Explanation:

The equation would be 2n^x = 32 and therefore, 4.

Answer:

C. The weak nuclear force is greater than the strong nuclear force

Answer:

there's no photo, I'm sorry

Answer:

La reacción de etano, CH₃CH₃ y cloro, Cl₂ en presencia de luz solar se conoce como reacción de halogenación.

Los radicales de cloro se forman cuando el cloro se expone a la luz solar a continuación;

Cl₂ → 2Cl *

Se forma un radical etano cuando el etano, C₂H₆ reacciona con un radical libre de cloro, Cl *, como sigue;

C₂H₆ + Cl → C₂H₅ * + HCl

Se forma un producto halogenado cuando un radical libre de etano reacciona con una molécula de cloro como sigue;

C₂H₅ * + Cl₂ → C₂H₅Cl + Cl *

Un producto halogenado puede reaccionar además con un radical libre para producir como sigue;

C₂H₅Cl + Cl * → C₂H₅Cl₂

Explanation:

Explanation:

A substance burning in the presence of oxygen and leads to the formation of heat and light is called combustion.

Some important points about combustion are as follows:

Explanation:

so for this one you know 92.24 is the mass of C so to work out the mass of hydrogen u so 100-92.24=7.76

so

C : H

92.24/12 : 7.76 /1

7.68 : 7.76

so 7.76÷7.68=1.01

so CH

12+1=13

78.12÷13=6.009

so CH×6= C6H6

hope this helps:)

Answer: 4

Explanation:

I found it online

Answer:

A

Explanation:

Answer:

I think It should be option A. It would have been B but, solar energy is not giving out, it's taken in