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geniusboy [140]
2 years ago
14

A change where compounds are formed or decomposed is a(n) physical change phase change nuclear change chemical change

Chemistry
2 answers:
dimaraw [331]2 years ago
4 0
It's a chemical change because a new compound is formed
lianna [129]2 years ago
3 0
       Physical change is a change in the shape, velocity, etc.
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2 years ago
A certain first-order reaction (a→products) has a rate constant of 9.60×10−3 s−1 at 45 ∘c. how many minutes does it take for the
Alexxandr [17]

The integrated rate law expression for a first order reaction is

ln\frac{[A_{0}]}{[A_{t}]}=kt

where

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k = 9.60X10⁻³s⁻¹

Putting values

ln\frac{100}{6.25}=9.6X10^{-3}t

taking log of 100/6.25

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7 0
2 years ago
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sineoko [7]

Answer:

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Explanation:

Hello!

In this case, since calcium's oxidation state when forming ionic bonds is +2 and sulfur's oxidation state when bonding those bonds is -2, for the required formula we write:

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5 0
2 years ago
muriatic acid is the commercial name for hydrochloric acid that can be purchased from hardware stores as a solution that is 30%(
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We have 30% (w/w) HCl this means : 
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the answer is 8 electrons

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3 years ago
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