Slide 1 balancing chemical reactions Slide 2 This is an example of an unbalanced chemical reaction. There are two oxygen atoms on the left but only one on the right. In next…

Slide 1 “ There is a vitality, a life force, an energy, a quickening that is translated through you into action–and because there is only one of you in all of time, this…

Atomic History How do we know all this stuff anyway? If atoms are too small to see⦠About 6,000,000,000 (6 billion) people live on the earth About 300,000,000 (300 million)…

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