Exam 1: HESI-A2-Chemistry

Which of the options correctly shows the oxidation that occurs in the following reaction? 2Na + 2H₂O → 2NaOH + H₂

Which of the following is the correct symbol for arsenic?

Which element does the electron configuration 1s² 2s² 2p⁴ represent?

Which of the following represents the original units for a concentration of described as wt/wt%?

How many days will it take 128 kilograms of a radioactive substance to decay to 16 kilograms if it has a half-life of 32 days?

Which of the following pH values is acidic?

What percentage of an original sample of iodine-131 will remain after 64 days if iodine-131 has a half-life of 8 days?

What kind of bond would hold carbon and hydrogen together?

Glycosidic bonds are found in what type of molecules?

Which of the following is not an intermolecular force?

Which of the following represents the correct electron configuration for sodium (Na)?

Which of the following is used to predict the products of a displacement reaction?

Which of the following functional groups is not found in carbohydrates?

Which of the following is the correct formula for sodium chloride?

Which of the options correctly shows the reduction that occurs in the following reaction? Fe + 3O₂ → 2Fe₂O₃

What type of bonding exists in NaCl?

Which state of matter can contain a solution?

What is the name given to a negatively-charged atom?

Which of the following particles has a negative charge?

Which of the following is not an example of a solution?