An element's square on the periodic table, the number with the greatest value represents the

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N an experiment you are asked to react hydrochloric acid with sodium hydroxide. When measuring the volume of the reactants, which instrument would give the greatest precision?

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What type of reaction takes place when the melting of a solid occurs?

Photosynthesis produces carbon dioxide and energy carbon dioxide and oxygen glucose and oxygen glucose and carbon dioxide

Identify the spectator ions in the following complete ionic equation. 2k (aq) s2 - (aq) pb2 (aq) 2no-3 (aq) →pbs (s) 2k (aq) 2no-3 (aq) express your answers as ions separated by a comma.

4. A bird left its post and flew in a triangular path. It flew 21 yards south, 72 yards east and 75 yards diagonally to end back at the post. Is it a right triangle?

Condension occurs in the inside of your windows in Winters, why?

How can you use Hess's law to determine a reaction's enthalpy?

7. How much energy in KJ is released when 15.0 g of steam at 100.0 degrees Celsius is condensed and then frozen to ice at 0.0 degrees Celsius?