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olga_2 [115]
3 years ago
8

Complete the sentence with the word "element" or "compound." O is a(n) and H202 is a(n)

Physics
1 answer:
Sauron [17]3 years ago
5 0

Answer:

O is an element and H2O2 is a compound.

Explanation:

O is a single element while H2O2 has 2 elements, which makes it a compound.

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A carpenter lifts a 10-kg piece of wood to his shoulder 1.5 m above the ground. He then sets the wood on his truck at 1.0 m abov
FinnZ [79.3K]

Answer:

<em>500Joules</em>

Explanation:

Kinetic energy = 1/2mv²

m is the mass of the wood

v is the velocity

Given

Mass = 10kg

Velocity v = 10m/s

Substitute into the formula and get KE

KE = 1/2 * 10 * 10²

KE  = 1/2 * 1000

KE = 500Joules

<em>Hence the kinetic energy of the wood during delivery is 500Joules</em>

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In a single replacement reaction, what will a metal always replace?
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A metal have a nice day
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The term you need to know is equilibrium. Technically it means that heat gained = heat lost. Normally in beginning chemistry classes the evidence for this condition is a stable temperature. 
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LenaWriter [7]

Answer:

The reason for phonograph installation is to provide information about humans to interstellar aliens.

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A decrease in the magnitude of velocity is called
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