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Sedbober [7]
3 years ago
9

Help pleaseeeeeeeeeeeeeeeeeee

Chemistry
2 answers:
Nataly [62]3 years ago
7 0

Answer:

1) Constructive Interference

2) Hits a surface and bounces back

3) Antinodes

BlackZzzverrR [31]3 years ago
4 0

Answer: I need points sorry

Explanation:

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how much heat, in terms in q, would it take to produce the change in temperature indicated in the picture? what is your reasonin
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Answer:

1. q.

2. 2q.

3. 3q.

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Explanation:

We'll begin by calculating the specific heat capacity of the liquid. This can be obtained as follow:

Mass (m) = 25 g

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C = q/500

C = 2×10¯³ qg°C

Therefore, the specific heat capacity of liquid is 2×10¯³ qg°C

Now, we shall determine the heat required to produce the various change in temperature as follow:

2. Mass (m) = 50 g

Change in temperature (ΔT) = 20 °C

Specific heat capacity (C) = 2×10¯³ qg°C

Heat (Q) =?

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Q = 50 × 2×10¯³ × 20

Q = 2q.

Therefore, the heat required is 2q.

3. Mass (m) = 25 g

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Specific heat capacity (C) = 2×10¯³ qg°C

Heat (Q) =?

Q = MCΔT

Q = 25 × 2×10¯³ × 60

Q = 3q.

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4. Mass (m) = 50 g

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Specific heat capacity (C) = 2×10¯³ qg°C

Heat (Q) =?

Q = MCΔT

Q = 50 × 2×10¯³ × 60

Q = 6q.

Therefore, the heat required is 6q.

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3 years ago
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Answer:

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130 gCl2 x \frac{1 mol Cl2 }{70.90 gCl2} = 1.83 mol Cl2

Then we need to convert 1.83 mol de Cl2 to moles of Cl. We have 2 moles of Cl in every Cl2 molecule so we just need to multiply by 2.

1.83 molCl2 x \frac{2 molCl}{1 molCl2} = 3.67 molCl

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