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3 years ago

HELP ASAP

Chemistry

1 answer:

Vera_Pavlovna [14]3 years ago

5 0

Answer:

Energy is transferred from one object to another when a reaction takes place.

Explanation:

Energy comes in many forms and can be transferred from one object to another as heat, light, or motion, to name a few.

The answer could be It is a well known fact that energy can neither be created and nor be destroyed but can be transformed from one form to another.

Now talking about your example in a typical light bulb electrical energy is converted into light energy and heat energy. Now when the electric current flows through the conductor/filament in the light bulb,this would cause vibrations and the free ions are more likely to go to an higher energy level,and when the ions come back to their original state,the difference in the two energy levels is usually emitted as a photon,thus light energy is obtained and the heat energy is the energy dissipated as a result of flow of electricity through the conductor.

Anything that gets transformed into light energy or in better words ElectroMagnetic Energy would be a result of this.

You might be interested in

If an isotope has 85 protons, 110 neutrons, and 85 electrons, it has a mass number of what?

telo118 [61]

Answer:

Mass number = 195

Explanation:

Isotope:

An atom of an element that contain same atomic number but different atomic mass.

The difference in atomic mass is due to the different number of neutrons present, but the number protons and electrons are remain same.

In given isotope of an atom there are 85 protons and 85 electrons while number of neutrons are 110.

The number of electron or number of protons are called atomic number while mass number of an atom is sum of protons and neutrons. The umber of protons and electrons are always equal to make the atom electrically neutral and when an atom loses its valance electron the number of protons increases and thus positive charge increased and atom form cation.

Mass number = number of protons + number of neutrons

Mass number = 85 + 110 = 195

7 0

3 years ago

Plssss help meeeeeeee

Montano1993 [528]

All you need to do is to look at both sides of the equation and see who has the same element, state, coefficient, and charge and those will be your spectator ions.

In this question, the spectator ions would be $Na^{+}$ and $Cl^{-}$ .

6 0

2 years ago

Iron and aluminum are examples of

mariarad [96]

Answer:

Iron and aluminum are both examples of metals that are used commonly in everyday life.

4 0

3 years ago

A 250mL sample of oxygen is collected over water at 30 C and 850 torr pressure. What is the pressure of the dry gas alone?

3241004551 [841]

Answer:

$p_O=818.2torr$

Explanation:

Hello there!

In this case, according to the given equation, it is possible to calculate the mass of oxygen by using the Dalton's law, considering that the total pressure is 850 torr and the vapor pressure of water at 30°C is 31.8 torr:

$P_T=p_O+p_{H_2O}$

Thus, we solve for the pressure of oxygen as follows:

$p_O=P_T-p_{H_2O}\\\\p_O=850torr-31.8torr\\\\p_O=818.2torr$

Best regards!

6 0

3 years ago

Calculate the molality 6.75% solution of ethanol in water

Arlecino [84]

The molality of solution = 1.576

<h3>Further explanation</h3>

Given

6.75% solution of ethanol in water

Required

The molality

Solution

Assume 100 g solution ,

Ethanol = 6.75 g⇒solute

Water = 93.25 g = 0.09325 kg⇒solvent

<em>Molality = mol solute/kg solvent</em>

mol Ethanol(MW=46 g/mol) :

$\tt mol=\dfrac{6.75}{46}=0.147$

the molality :

$\tt m=\dfrac{0.147}{0.09325}=1.576$

8 0

3 years ago