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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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Which of these equations are correct? Select all that apply
nikitadnepr [17]

Answer:

The answer to your question is below

Explanation:

There are 4 laws of gases

- Charles

  \frac{V1}{T1} = \frac{V2}{T2}

- Gay Lussac

 \frac{P1}{T1} = \frac{P2}{T2}

- Boyle - Mariotte

 P1V1 = P2V2

- General law of gases

  \frac{P1V1}{T1} = \frac{P2V2}{T2}

Let's use these formulas to answer the question

p2 = V2/P1                  This is not a law of gases

p1= V1/k                        This formula is similar to Boyle mariotte equation

                                     but is not.

V2 = k/P2                      This equation is correct is Boyle Mariotte formula

V2 = P1V1/ P2               This equation is also correct is Boyle Mariotte formula

V1 = P1/P2 (V2)            This equation is incorrect

P2 = (P1) V1/V2             This equation is correct is Boyle mariotte formula

4 0
4 years ago
Describe a procedure to separate a mixture of sugar black pepper and Pebbles
ivolga24 [154]
Dissolve the sugar. Strain the pebbles. You are left with the pepper
8 0
3 years ago
The value of Ka for phenol (a weak acid), C6H5OH, is 1.00×10-10. Write the equation for the reaction that goes with this equilib
I am Lyosha [343]

Answer:

Ka=\frac{[C_6H_5O^-][H^+]}{[C_6H_5OH]}

Explanation:

Hello,

In this case, weak acids are characterized by the fact they do not dissociate completely, it means they do not divide into the conjugated base and acid at all, a percent only, which is quantified via equilibrium. In such a way, the chemical equation representing such incomplete dissociation is said to be:

C_6H_5OH\rightleftharpoons C_6H_5O^-+H^+

Thus, we can write the law of mass action, which consider the equilibrium concentrations of all the involved species, which is also known as the acid dissociation constant which accounts for the capacity the acid has to yield hydronium ions:

K=Ka=\frac{[C_6H_5O^-][H^+]}{[C_6H_5OH]}

Best regards.

3 0
3 years ago
I need help for some of the question please,
LenKa [72]

Answer:

Number 6

Explanation:

A reflex action is an involuntary action and nearly instantaneous movement in response to a stimulus.

5 0
3 years ago
Read 2 more answers
A gold bar is contain 3.0 mol of gold, how many atoms of gold are in the bar
kenny6666 [7]

Answer:

18.066 x 10^23 atoms of Au

Explanation:

ONE mole = 6.022 x 10^23  particles

3   x   6.022 x 10^23

 

6 0
2 years ago
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