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slavikrds [6]
3 years ago
10

A circuit is shown in the picture above. Energy is transferred first from the battery to the circuit wire and then from the circ

uit wire to
the light. What energy transformations occur between these two transfers?
OA. Energy is transformed first from chemical energy to mechanical energy and then from mechanical energy to light and
heat energy
OB. Energy is transformed first from chemical energy to light and heat energy and then from light and heat energy to
electrical energy
OC. Energy is transformed first from chemical energy to electrical energy and then from electrical energy to light and heat
energy
OD Energy is transformed first from mechanical energy to chemical energy and then from chemical energy to light and heat
energy
Chemistry
1 answer:
sp2606 [1]3 years ago
8 0

Answer:its D.

Explanation:

Energy is transformed first from chemical energy to electrical energy and then from electrical energy to light and heat energy.

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Neporo4naja [7]

Answer:

Water molecules pull the sodium and chloride ions apart, breaking the ionic bond that held them together. After the salt compounds are pulled apart, the sodium and chloride atoms are surrounded by water molecules, as this diagram shows. Once this happens, the salt is dissolved, resulting in a homogeneous solution.

Explanation:

4 0
3 years ago
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11111nata11111 [884]

Answer:

A. 2H₂O₂  → 2H₂O + O₂

Explanation:

  • 1. H₂O₂ + I⁻ → H₂O + OI⁻
  • 2. H₂O₂ + OI⁻ → H₂O + O₂ + I⁻

If we <u>make a net sum of both reactions</u>, we're left with:

  • H₂O₂ + I⁻ + H₂O₂ + OI⁻ → H₂O + OI⁻ + H₂O + O₂ + I⁻

Grouping species:

  • 2H₂O₂ + OI⁻ + I⁻ → 2H₂O + OI⁻ + O₂ + I⁻

There is OI⁻ at both sides, so it is eliminated -same goes for the catalyst, I⁻-.

  • 2H₂O₂  → 2H₂O + O₂

Thus the answer is option A.

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3 years ago
What element has an electron configuration that ends in 2s2 2p4?
NISA [10]
Oxygen is the element. It has a total of 6 valence electrons.
5 0
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(6.93 x 10) (2.0 x 10^-4) =
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1.386×10^-2 or 0.01386

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Explanation:

8 0
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