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Dahasolnce [82]
3 years ago
10

Energy cannot be created or destroyed. It can only be transferred from one form to another. Energy that is "wasted," does not di

sappear. Instead, it is transferred to its surroundings and spreads out so much that it becomes difficult to do anything useful with it. Incandescent light bulbs are very inefficient in energy transfer. Energy-saving lightbulbs, such as fluorescent bulbs transfer a greater proportion of electrical energy as light energy. In fluorescent bulbs what kind of energy is "wasted" in the energy transfer from electricity to light?
A) heat energy
B) kinetic energy
C) chemical energy
D) electrical energy
Chemistry
2 answers:
Inessa [10]3 years ago
7 0

Answer:

A: heat energy

Explanation:

because as we light up the bulb it gives us light energy

but when we touch it we feel that it is hot (heat energy)

the heat energy given of is not for our use and goes to waste

hoa [83]3 years ago
4 0

Answer: Option (A) is the correct answer.

Explanation:

Heat energy is defined as the energy produced due to the movement of particles, atoms or molecules in an object.

Kinetic energy is defined as the energy acquired by the molecules of an object because of their movement due to increase in temperature. More is the increase in temperature more will be the movement of molecules.

Chemical energy is defined as the energy which is stored within the bonds of a chemical compound.

Electrical energy is defined as the energy which arises due to the flow of electrons or ions in a substance.

In fluorescent bulbs, heat energy is wasted in the energy transfer from electricity to light.

Thus, we can conclude that heat energy is wasted in the energy transfer from electricity to light.

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What are some of the body external defenses
tekilochka [14]
<span>these include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils.</span>
4 0
3 years ago
A 28.5 gram piece of iron is added to a graduated cylinder containing 45.5 mL of water. The water in the cylinder rises to the 4
yan [13]

7.91 g/ml is the density of the iron piece of 28.5 gms.

Explanation:

The density of a substance is defined as the volume it occupies.  It tells the matter present in a substance.

The density is mass per unit volume and is denoted by p.

The formula for density is given by:

density (p) = \frac{mass}{volume}

Data given is :

mass= 28.5 grams

V1 = 45.5 ml

V2= 49.1 ml

The initial volume of water was 45.5 ml, when iron piece of 28.5 grams was added the final volume was 49.1 ml.

Putting the values in the equation of density

p = \frac{28.5}{49.1-45.5}

p = 7.91 g/ml

Since iron is a dense material it will occupy less volume

4 0
3 years ago
Someone help me please
vesna_86 [32]
I am pretty sure its b, Ag atoms and localized electrons in silver
3 0
2 years ago
I will mark brainliest
Veronika [31]

I believe the answer is B??????????? Hope this helps

~Queensupreme

5 0
3 years ago
Read 2 more answers
How many H2O molecules are in 183.2 grams of H20 gas?
jek_recluse [69]

Answer: There are 61.24 \times 10^{23} molecules present in 183.2 grams of H_{2}O gas.

Explanation:

Given: Mass = 183.2 g

Number of moles is the mass of substance divided by its molar mass.

As molar mass of water is 18 g/mol. Therefore, moles of H_{2}O are calculated as follows.

Moles = \frac{mass}{molar mass}\\= \frac{183.2 g}{18 g/mol}\\= 10.17 mol

According to the mole concept, there are 6.022 \times 10^{22} molecules present in one mole of a substance.

Hence, molecules present in 10.17 moles are calculated as follows.

10.17 mol \times 6.022 \times 10^{23}\\= 61.24 \times 10^{23}

Thus, we can conclude that there are 61.24 \times 10^{23} molecules present in 183.2 grams of H_{2}O gas.

6 0
3 years ago
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