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Serjik [45]
2 years ago
12

2 H2O2-> 2H20+02

Physics
1 answer:
Luden [163]2 years ago
6 0

Answer:

This reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen. Add 2 molecules of hydrogen peroxide and 2 molecules of water. Since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

3]Explanation: This reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen. Add 2 molecules of hydrogen peroxide and 2 molecules of water. Since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

4]Two moles of hydrogen peroxide H2O2 decomposes to produce two moles of water H2O and one mole of oxygen gas O2(g) , which then bubbles off

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RoseWind [281]

M = mass of the girl = 53.4 kg

m = mass of skateboard = 3.55 kg

V' = velocity of the combination of girl and skateboard before she jumps forward = 0 \frac{m }{s}

V = velocity of the girl forward = 1.32 \frac{m }{s}

v = velocity of the skateboard afterward = ?

Using conservation of momentum

(M + m) V' = MV + m v

inserting the values

(53.4 + 3.55) (0) = (53.4) (1.32) + (3.55) v

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A 600W toaster, 1200W iron and a 100W bulb are all connected to household 120V circuit. a) find the current drawn by each applia
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(b) 12 ohm

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As they are in household circuit, so they are connected in parallel, so the voltage is same for all.

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120 = 10 x R2

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(c) Total energy consumed in 24 hours for 5 days

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Cost of 1 KWh = $0.1

Cost of 228 KWh = 0.1 x 228 = $22.8

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If we isolate t we will have:

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Hence, the correct option is C: distance divided by velocity.

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