Jorge is testing the effect of lead on child development Based on his observations, he finds that the longer the children are exposed to lead-based paint, the higher the chance becomes that the children may develop behavioral
problems. He has done repeated experiments, and his results are similar to the results of many other scientists.
Why is this scenario considered a theory rather than a hypothesis?
It is a testable scenario.
O It is based on prior knowledge.
O It is a well-tested explanation.
It is a factual statement.

In apex! a liquid heated beyond a certain temperature becomes

How can one make a supersaturated solution? (apex)

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.