Carbon-14 has a half-life of 5720 years and this is a first order reaction. If a piece of wood has converted 25% of the carbon-14, then how old is it?
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What is the rate law for the following mechanism? N2O + NO…
What is the rate law for the following mechanism? N2O + NO → N2ONO (Slow) N2ONO → N2 + NO2 (Fast)
Which of the following is not an application of colligative…
Which of the following is not an application of colligative properties?
For the zeroth-order reaction: A → products, what will happe…
For the zeroth-order reaction: A → products, what will happen to the rate of reaction if the concentration of A is doubled?
What element is commonly found in proteins but is not common…
What element is commonly found in proteins but is not commonly found in carbohydrates, nucleic acids or any of the lipids? (CS 1)
What is the activation energy for the formation of ozone?
What is the activation energy for the formation of ozone?
The production and use of antibiotics is an example of which…
The production and use of antibiotics is an example of which microbiology field? (S 2, T 9)
Match the cell or cell part listed in the column on the left…
Match the cell or cell part listed in the column on the left to the number showing that cell or cell part in the figure.
Shown is a concentration versus time plot for a reaction inv…
Shown is a concentration versus time plot for a reaction involving gases A, B, and C. Which equation best represents the reaction?
Domains Archaea and Bacteria are more closely related to eac…
Domains Archaea and Bacteria are more closely related to each other than to Eukarya because Archaea and Bacteria domains both have prokaryotic organisms. (T 1)