Answer:
Collision theory states that when suitable particles of the reactant hit each other, only a certain fraction of the collisions cause any noticeable or significant chemical change; these successful changes are called successful collisions.
Explanation:
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<h2>when is ph scale?</h2>
- pH is a measure of how acidic/basic water is. The range goes from 0 - 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water.
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<h2>Answer:</h2>
Option A is correct;
A.) The atoms are arranged differently in each molecule
<h3>Explanation:</h3>
Water and hydrogen peroxide are made of the same elements: oxygen and hydrogen. However, hydrogen peroxide (H2O2) has 1 more oxygen than water (H2O).
Hydrogen peroxide is very unstable and breaks down readily into water and a single oxygen molecule.
And also the arrangement of atoms is different in each molecule.
O iodine (I) because scientists use it for a lot of experiments