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Firdavs [7]
3 years ago
15

1. What is a chemical reaction?

Chemistry
1 answer:
givi [52]3 years ago
7 0
A process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction.
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Anything with mass creates gravity, but the amount of gravity is proportional to the amount of mass.
gayaneshka [121]

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What is the pH of a solution with a concentration of 1.8 × 10-4 molar H3O+?
Andre45 [30]
PH is defined as the negative log of Hydrogen ion concentration. Mathematically we can write this as:

pH=-log[H^{+}]=-log[H_{3}O]

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3 years ago
How many chlorine atoms are there in one molecule of PCI3
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Chemical Formula:

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Which mixture is heterogeneous?
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