Your teacher is performing an experiment in the lab. She takes a test tube
with a clear liquid inside and pours it into another test tube with some sort
of solid. As she pours the liquid, it immediately starts to bubble up, but no color
change occurs. How do we know that a chemical reaction has occurred?
a. bubbles formed
b. the liquid was poured into the solid
c. the liquid mixed with the solid
d. no color change occurred
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The cluster of developing cells from conception until birth is called an
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Explain the source of radioactivity in uranium in earthβs crust by which it produces nuclear radiation
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Which kingdom includes some organisms that have no nucleus and can live in an environment with an extremely high salt content
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Your teacher is performing an experiment in the lab. She takes a test tube
with a clear liquid ins...
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