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nordsb [41]
3 years ago
5

Luciana explains to Eric how electricity flows in a circuit. Which sentences are a part of her explanation? Select all that appl

y.
A. Without a resistor, electricity cannot flow in a circuit.


B. Without a switch, electricity cannot flow in a circuit.


C. For electricity to flow in a circuit, the circuit must be complete.


D. An insulator such as plastic is needed for electricity to flow in a circuit.


E. A conductor is needed for electricity to flow in a circuit.
Chemistry
2 answers:
Flauer [41]3 years ago
8 0
I’m pretty sure it c hope that helped
victus00 [196]3 years ago
5 0

Answer:

E. A conductor is needed for electricity to flow in a circuit.

Explanation:

Electric current can flow without a resistor, as in short circuit.

A short circuit is an electrical circuit that allows a current to travel along an unintended path with no or very low electrical impedance.

Without a switch, electricity can flow in a circuit, switch is only used to close or open the circuit.

Thus, the only correct option is  E

E. A conductor is needed for electricity to flow in a circuit.

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What number is equal to the amount of protons<br> and neutrons on the periodic table?
DENIUS [597]

Answer:

The mass number

Explanation:

The mass number of an atom is its total number of protons and neutrons.

I hope this helps a bit.

7 0
3 years ago
Balance the equation by ion electron method
irina1246 [14]

Answer:i believe you are to decompose the formula (i think)

8 0
2 years ago
Which type of rock forms as a result of cooling and crystallization?
Dovator [93]

Answer:

Igneous rock is the type of rock that forms as a result of cooling an crystallization

Explanation:

  • Rocks are either sedimentary, igneous or metamorphic based on the chemical composition and the mode of formation.
  • Igneous rocks are formed as a result of the cooling and crystallization of magma from volcanic eruptions.
  • Igneous rocks are either intrusive, which form deep in the crust or extrusive which form on the surface of the earth.
  • Sedimentary rocks are formed as a result of deposition, and cementation of sediments.
  • Metamorphic rocks, on the other hand, are formed from the sedimentary and igneous rocks during the rock cycle.

7 0
3 years ago
How many moles of hydrochloric acid are required to produce .40 moles of hydrogen gas?
mash [69]

Answer:

0.80 Moles of Hydrochloric Acid would be required to produce 0.40 Moles of hydrogen gas due to the equation ratios

Explanation:

How many moles of hydrochloric acid are required to produce .40 moles of hydrogen gas?

Hydrochloric acid = HCl

Hydrogen gas = H2

H = 1+

Cl = 1-

HCL = H2 + Cl2

2HCl = H2 + Cl2

2:1:1

0.80 = 0.40 + 0.40

4 0
3 years ago
1)What is not true of a scientific law?
ipn [44]

A) It must be verified by scientists around the world.

A scientific law is a way to describe a phenomenon that occurs in our universe. In order for a research to become law, it must be accepcted by the vast majority - if not all - of the scientists in the same field. However, they do not have to verify the potential law, they can choose to falsify or just to accept proofs taken by the discovers.

---

A)It has been proven by several scientists independently, resulting in its being accepted as truth.

The Big bang is a scientific theory that explain how our universe was born. Before becoming a theory and becoming the "fact" we assume it is, it was long subject of study, and it was accepted only when different study from different scientists pointed out in the same direction. Hoever, ever today, study continues to have a better understanding of the phenomenon.

---

D)The results are considered more reliable because they were documented by separate investigations.

When different experiments are made, and they gave out similar results, the results become more reliable, as they are been proven by different sources in an indipendent way. However, this do not imply a pubblication or the trasformation of the results into a scientific law, as those steps go through a different process.

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B)nuclear energy

C)electrical energy

D)thermal energy

Only mechanical energy is a type of kinetic energy. Kinetic energy means an energy that derives from a movement. Nuclear energy, electrical energy and thermal energy are other forms of energy. Energy from one of these sources could be converted into kinetic energy, or kinetic energy could be used to generate other forms of energy.

3 0
2 years ago
Read 2 more answers
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