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cricket20 [7]
3 years ago
12

Pls helppp ASAP I’ll brainlest

Chemistry
2 answers:
docker41 [41]3 years ago
5 0
The Answer is b (noble)
My name is Ann [436]3 years ago
4 0

Answer:

The answer is B

Explanation:

Hope that helps

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The edge of the card measures 2.5 inches, what is it in cm?
Citrus2011 [14]

Answer:

6.35 centimeters

Explanation:

<em>2.5 inches</em> = <em>6.35 centimeters</em>

Formula:

  • <em>multiply </em><em>the value in </em><em>inche</em><em>s by the </em><em>conversion</em><em> factor '</em><em>2.54'.</em>

So, 2.5 inches = 2.5 × 2.54 = 6.35 centimeters.

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qwelly [4]
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3 years ago
What observation about light supported Einstein's theory?
Llana [10]

In 1905 Albert Einstein had proposed a solution to the problem of observations made on the behaviour of light having characteristics of both wave and particle theory. From work of Plank on emission of light from hot bodies, Einstein suggested that light is composed of tiny particles called <span>photons, </span>and each photon has energy.

Light theory branches in to the physics of <span>quantum mechanics, </span>which was conceptualised in the twentieth century. Quantum mechanics deals with behaviour of nature on the atomic scale or smaller.

As a result of quantum mechanics, this gave the proof of the dual nature of light and therefore not a contradiction.

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3 years ago
What contains most of earths water
nikitadnepr [17]
The ocean hold 97 percent of earths water.
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3 years ago
Help neeeeeeeeeeeeeeededdddddddd badddd..
Hitman42 [59]
I think the awnser would be C. becuase Pure Substances are made of mostly the same material and properties Such as: Nitrogen Gas, Oxygen Gas, Carbon, Iorn, Water, Sugar and Salt.
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