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MAXImum [283]
3 years ago
15

PLEASE HELP, 5 STARS, 35 POINTS + PRIZE The reaction C4H8(g)⟶2C2H4(g) has an activation energy of 262 kJ/mol. At 600.0 K, the ra

te constant, , is 6.1×10−8 s−1. What is the value of the rate constant at 780.0 K?
Chemistry
1 answer:
Ghella [55]3 years ago
5 0

Answer:

346 hope this is helpfull

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Which substance is one that cannot be separated or broken down into simpler substances by chemical means? (Element, pure)
Y_Kistochka [10]

Answer:

gold wire (Au)

Explanation:

A substance that cannot be separated or broken down into simpler substances by chemical means is an element.

Between the given options only gold wire is an element, Au.

A way of knowing that it is an element is noticing that its formula is a single symbol which corresponds to an element found in the periodic table, unlike a combination of said symbols (like NaCl or H₂O).

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2 years ago
A ___________________ is a combination of two or more atoms that are held together by covalent bonds.
Andre45 [30]
The answer is Molecule
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3 years ago
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In the short a rainstorm might damage buildings and habitats by a river to flood. What positive effect might a rainstorm have in
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The rainstorm can dehydrate the plants

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3 years ago
Please explain how to do this one !! Which of the following ionic solids would have the largest lattice energy?
julsineya [31]

Answer:

I think it's Csl

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5 0
3 years ago
Dimensional analysis can only be used for time, distance, mass, speed, volume, and chemical quantities.
cupoosta [38]

Dimensional analysis can only be used for time, distance, mass, speed, volume, and chemical quantities: False.

<h3>What is dimensional analysis?</h3>

A dimensional analysis can be defined as an analysis of the relationships that exist between different physical quantities by identifying their fundamental (base) quantities, especially for the purpose of inferences.

Dimensional analysis is also referred to as unit-factor method or factor-label method and it is typically used to convert a different type of unit to another.

Generally, dimensional analysis can only be used for the following physical quantities:

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In conclusion, a dimensional analysis cannot be used for chemical quantities such as a mole i.e it has no dimensional formula.

Read more on dimensional analysis here: brainly.com/question/24514347

5 0
2 years ago
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