Chemical change, because the white powder heated the water and caused a thermal reaction, and possibly gas was produced due to bubbles.
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The correct answer is B. Electrons will be added to an atom starting from the lowest possible level or sublevel.
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The persistence of vision is regarded as an optical illusion but it is actually part of human physiology.
<h3>What is persistence of vision?</h3>
The term persistence of vision is the idea that an object is able to remain is sight for a long time even when the object has been removed. This is often used by performers to create a remarkable impression on the audience. The persistence of vision is regarded as an optical illusion but it is actually part of human physiology.
The way that a performance can be designed to make the audience to know that this is the most important scene is called follow through.
Learn more about optical illusion:brainly.com/question/28179807
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The answer would for sure be 178 because acid & base make that amount so yea!! I’m talllyyy right
H2O is a compound. So it's second one.