PLEASE HELP!!! Students combine several chemicals and record the observations in their science notebooks. A list of the observed results is given here. • Production of a gas (bubbles) • Phase change (solid

PLEASE HELP!!!

Students combine several chemicals and record the observations in their science notebooks. A list of the observed results is given here. • Production of a gas (bubbles) • Phase change (solid to liquid) • A precipitate forms • Change in shape • Crystals dissolving • Heat produced How many of the observations are evidence that a new substance was formed? *
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PLEASE HELP!!! Students combine several chemicals and record the observations in their science notebooks. A list of the observed results is given here. • Production of a gas (bu…

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