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Verdich [7]
3 years ago
13

Look at the following reaction. Select the option that best applies to the reaction.

Chemistry
2 answers:
tester [92]3 years ago
5 0

Answer:

Two moles of KClO3 decompose to form 5 moles of product.

MAVERICK [17]3 years ago
4 0

(c) There are more molecules of product than reactant.

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Which is the fundamental law of energy?
Paraphin [41]
The first law<span>, also known as </span>Law<span> of Conservation of </span>Energy<span>, states that </span>energy <span>cannot be created or destroyed in an isolated system.</span><span> 
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3 years ago
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Atoms of noble gases are generally inert because..
umka21 [38]

Answer:

B. their outer electron levels are filled

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What the branch of a zoologist
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3 years ago
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What is water's density at 93 ∘C? Assume a constant coefficient of volume expansion. Express your answer with the appropriate un
Ganezh [65]

Answer:

982.5 kg/m³

Explanation:

When the temperature of a fluid increases, it dilates, and because of the variation of the volume, it's density will vary too. The density can be calculated by the expression:

ρ₁ = ρ₀/(1 + β*(t₁ - t₀))

Where ρ₁ is the final density, ρ₀ the initial density, β is the constant coefficient of volume expansion, t₁ the final temperature, and t₀ the initial temperature.

At t₀ = 4°C, the water desity is ρ₀ = 1,000 kg/m³. The value of the constant for water is β = 0.0002 m³/m³ °C, so, for t₁ = 93°C

ρ₁ = 1,000/(1 + 0.0002*(93 - 4))

ρ₁ = 1,000/(1+ 0.0178)

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3 0
3 years ago
An element has an atomic mass of 69.66 amu. It has two
marin [14]

Answer: 63.26%

Explanation:

If we let the abundance of the first isotope be x, then:

69.66=(68.9255)(x)+(70.9247)(1-x)\\69.66=68.9255x+70.9247-70.9247x\\-1.2647=-1.9992x\\x=\frac{-1.2647}{-1.9992} \approx 0.6326

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7 0
1 year ago
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