Get me the answers please

Answer:

E. hydrogen

Explanation:

Answer:

Its E. hydrogen

Explanation:

Answer:

mixture

Explanation:

Answer:

Mixture

Explanation:

Answer: silver reduced, gold oxidized

Explanation:

Answer:

D

Explanation:

true 100% i just had a quiz on this.

Answer:

Warming the batter and frying the eggs.

Explanation:

This is a chemical change as the products have very different property as compared to reactant not only physically but also chemically. Therefore, the reaction that is associated with cooking is combustion reaction.

Chemical change is a reaction in which breaking and forming of new bonds take place. One molecule completely converted to totally different molecule. The number of atoms remains same

One famous example of chemical change is the rusting of iron. The color, odor and arrangements of atoms in products are very much different from reactant. Chemical change are mostly irreversible in nature.  

Cooking is a chemical change not a physical change. During cooking the reaction that is associated is combustion reaction as the by product is carbon dioxide and water.

Therefore,  the reaction that is associated with cooking is combustion reaction.

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Answer:

See explanation

Explanation:

The essence of chemical bonding is in order to attain minimum energy. The minimum energy state is the most stable state of a chemical system.

As the distance of separation between atoms decreases, the potential energy of the system decreases accordingly.

An optimum distance is reached when the two atoms attain the lowest potential energy. This is designated as the bond distance of the two atoms.

Hence two atoms have lower potential energy when bonded than when separated at large distance.

When two atoms are chemically bonded they have Lower potential energies while when they are separated they have higher potential energies

The potential energies of atoms chemically bonded is directly proportional to the distance between the atoms ( i.e as the distance between atoms decrease the potential energies of the atoms decreases accordingly)  and this enables chemically bonded atoms to attain a more stable state.

The lower the potential energy of bonded atoms the more stable the element/compound  becomes therefore it is necessary that bonded atoms attain the least possible potential energy.

Hence we can conclude that When two atoms are chemically bonded they have Lower potential energies while when they are separated they have higher potential energies .

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Cost per mole

Table salt : Rs 0.878

Table sugar : Rs 23.63

Given

Cost table salt (NaCl) = 15/kg

Cost table sugar(sucrose-C12H22O11) = 69/kg

Required

cost per mole

Solution

mol of 1 kg Table salt(NaCl ,MW= 58.5 g/mol) :

[tex]\tt mol=\dfrac{1000~g}{58.5}=17.09~mol=Rs~15\rightarrow 1~mol=Rs~0.878[/tex]

mol of 1 kg Table sugar(C12H22O11 ,MW= 342 g/mol) :

[tex]\tt mol=\dfrac{1000}{342}=2.92~mol=Rs~69\rightarrow 1~mol=Rs~23.63[/tex]

Answer:

protons: 36

neutrons: 48

electrons: 36

Answer:

Explanation: The air inside the bulb is taken out and replaced with a gaseous mixture of argon and nitrogen which help ensure a longer-life for the filament. The bulb will be tested to make sure they're up to the job.

Answer:

I believe the answer is

"He is monitoring oxygen. The amount of gas released should be highest for the plant closest to the window and lowest for the plant farthest away from the window."

Explanation:

I may be wrong but thats my guess it seems the most accurate

Answer:

I think chemical Weathering

Answer:

Deposition is the answer

Explanation:

Answer:

11 electrons total and 23amu

Explanation:

This tells us that sodium has 11 protons and because it is neutral it has 11 electrons. The mass number of an element tells us the number of protons AND neutrons in an atom (the two particles that have a measurable mass). Sodium has a mass number of 23amu.

Answer:

The answer is : D. Wind energy

Answer:

D, all of the above

Explanation:

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Explanation:

Answer:

Does it have a picture?

Explanation:

The potential difference between the top and bottom of a D cell battery is derived by the use of a voltmeter between the +ve and -ve poles.

The potential difference is simply defined as two points that reflect the energy released in transferring a unit quantity of electricity from one spot to the other.

In conclusion,  Potential difference is also known as the voltage across two points in a circuit.

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Answer:

2AgNO₃ + MgCl₂ ⇒ 2AgCl + Mg(NO₃)₂

Explanation:

Match both sides of the equation. practice practice

Answer:

P.E = 3.675  J

Explanation:

Given data:

Height of table = 0.75 m

Mass of book = 0.5 kg

Potential energy = ?

Solution:

Formula:

P.E = mgh

g =acceleration due to gravity =  9.8 m/s²

by putting values,

P.E = 0.5 kg× 9.8 m/s² ×0.75 m

P.E  = 3.675 kgm²/s²

J = kgm²/s²

P.E = 3.675  J

Answer:

[tex]\boxed {\boxed {\sf 3.675 \ Joules}}[/tex]

Explanation:

Gravitational potential energy can be found using the following formula.

[tex]E_p=m*g*h[/tex]

Where m is the mass, g is the gravitational acceleration, and h is the height.

The mass of the book is 0.5 kilograms. The acceleration due to gravity on Earth is 9.8 m/s². The height of the book is 0.75 meters.

[tex]m= 0.5 \ kg \\g= 9.8 \ m/s^2 \\h= 0.75 \ m[/tex]

Substitute the values into the formula.

[tex]E_p=(0.5 \ kg)(9.8 \ m/s^2)(0.75 \ m)[/tex]

Multiply.

[tex]E_p=(4.9 \ kg*m/s^2)(0.75 \ m)[/tex]

[tex]E_p=(4.9 \ N)(0.75 \ m)[/tex]

[tex]E_p=3.675 \ N*m[/tex]

[tex]E_p=3.675 \ J[/tex]

The book has 3.675 Joules of gravitational potential energy.

Answer:

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

[tex]n = \frac{N}{L} \\[/tex]

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

[tex]n = \frac{9.20 \times {10}^{24} }{6.02 \times {10}^{23} } \\ = 15.282392..[/tex]

We have the final answer as

Hope this helps you

Answer:

it changes color from blue to light green.

Explanation:

due to copper iron nail functions

Answer:

give the other person brainlieset plz

Explanation:

Answer:

Yes they are triglycerides

Explanation:

Triglycerides are esters derived from glycerol and three fatty acids.

If we look at the structures closely, we will notice that the compounds are composed of glycerol and three fatty acids.

Hence the structures are triglycerides. The first structure is an unsaturated triglyceride while the second structure is a saturated triglyceride.

Answer:

hi nice to meet you, just be your self and ask your questions, its all good we are nice people

Explanation:

have a great day, please mark as brainliest please

Hello! Be ur self, ask questions and ask questions. Okibye

Answer:

Nuestra alimentacion debe estar basada en alimentos ricos en vitaminas, minerales como las frutas verduras, legumbres  y semillas.

Explanation:

Los alimentos ultraprocesados son altos en sodio, conservantes, y pobres en vitaminas, es por eso que deben ser evitados ya que algunos hasta se consideran hasta carcinogenos.

No se descarta los compuestos quimicos ultraprocesados ricos en grasa perjudiciales para la salud ya que fomentan la formacion de placa de ateromas.

a change in form or appearance of matter

Explanation: CAUSE IT STILL IS THE  MATERIAL JUST IN A DIFFERENT SHAPE

Answer:

A change in form, or appearance of matter. Is your answer, can I have Brainliest? :) Have a great day! Hope it's right!

Answer: They identified cows that did well in cold weather and mated them. This is known as selective breeding. All the other answers either cannot work as cross-species breeds generally don't work, or they target cows that survive well in hot weather.