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natka813 [3]
3 years ago
15

Two friends decide to go to the park and watch a movie on a computer. The computer runs on battery power. What energy transforma

tion is occurring from the battery to the light being given off by the computer?
Chemistry
1 answer:
Svetllana [295]3 years ago
8 0

Explanation:

Chemical energy - electrical energy - light energy

The energy transformation occurring in the battery to the light given off by the computer is from chemical to electrical and to light energy.

A battery is an electrochemical cell that converts chemical energy into chemical energy. In a battery, chemical reactions are used to produce electric currents.

The electric current is an electrical energy.

This energy is used to produce the light given off by the computer.

learn more:

kinetic energy brainly.com/question/4997571

#learnwithBrainly

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You have a 1.153 g sample of an unknown solid acid, HA, dissolved in enough water to make 20.00 mL of solution. HA reacts with K
seropon [69]

Answer:

HA +  KOH  →  KA  +  H₂O

Explanation:

The unknown solid acid in water can release its proton as this:

HA  +  H₂O  →  H₃O⁺  +  A⁻

As we have the anion A⁻, when it bonded to the cation K⁺, salt can be generated, so the reaction of HA and KOH must be a neutralization one, where you form water and a salt

HA +  KOH  →  KA  +  H₂O

It is a neutralization reaction because H⁺ from the acid and OH⁻ from the base can be neutralized as water

7 0
3 years ago
6. Identify the number of neutrons in one atom of silicon with an isotopic mass number of 28 amu.
Sholpan [36]

14

Explanation:

The number of neutrons in one atom of silicon with an isotopic mass number of 28amu is 14.

An atom is made up three fundamental sub-atomic particles which are:

  Protons, neutron and electrons

Protons are the positively charged particles in an atom

Neutrons do not carry any charges

Electrons are the negatively charged particles.

In the nucleus of an atom, both protons and neutrons can be found. They are the massive particle in an atom.

  The mass number of an atom = number of protons + number of neutrons

Number of neutrons = mass number - number of protons.

From the periodic table, we know that silicon has an atomic number of 14.

The atomic number is the number of protons in an atom:

         Number of neutrons = 28 - 14 = 14amu

In the atom, we will have 14amu of neutrons in a silicon atom.

learn more:

Number of neutrons brainly.com/question/2757829

#learnwithBrainly

5 0
3 years ago
According to Newton's Third Law, If one object exerts a force on a second object, the second object exerts a force on the first
blagie [28]

Equal in magnitude and opposite in direction.

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2 years ago
Am i the only one getting a red text saying my question is mean?
Triss [41]

Answer:

I dont know

Explanation:

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This is for science and it’s for the plant kingdom
Elenna [48]

Answer:

Explanation:

1. Flower

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