The removal of silver tarnish from silverware using aluminum foil and a solution of electrolyte is an example of

A) oxidation of aluminum metal.

B) reduction of silver ions.

C) an electrochemical cell.

D) all of the above

The first task you are assigned in your summer laboratory job is to prepare a concentrated naoh stock solution. the molecular weight of naoh is 40.

Which of the following is not an acid-base neutralization reaction? A.) NH3 + HCl NH4Cl B.) HCl + NaBr HBr + NaCl C.) HCl + HBr H2 + ClBr D.) 2 HBr + Ca (OH) 2 CaBr2 + 2 H2O

Covalent bond is an unequal sharing of electrons

Gravity is best described by which of the following a) a kind of acceleration b) a molecular pull c) a fundamental force d) a description of mass

What are the major natural branches of science

What is similar to iodine by chemical characteristics

The arrangement of electrons in the orbitals of an atom

A sample of C3H8 has 4.64 * 1024 H atoms. How many carbon atoms does the sample contain?

What is the value of 200c on a Kelvin scale

Calculate the moles of new H₂ O₂ using the balanced formula below and the average moles of KMnO₄ from calculation #2. The average moles of KMnO₄ is 0.90mol. 2KMnO₄ + 5H₂O₂ + 3H₂SO₄ → K₂SO₄ + 2MnSO₄ + 8H₂O + 5O₂ Edit: I got 2.