Practice the essential concepts of matter, atomic structure, chemical reactions, bonding and everyday applications of chemistry.
Questions are tracked as practiced when you open Show Answer & Explanation. Tracking stays only in this browser tab and no subject-test result is saved.
Which of the following elements is a transition metal?
What is the term for the lowering of vapor pressure when a non-volatile solute is added to a solvent?
Which process involves passing an electric current through a solution to cause a chemical reaction?
Which particle is found in the nucleus of an atom along with the neutron?
What is the process of converting a solid directly to a gas called?
Which acid is present in the human stomach?
Which organic functional group is present in carboxylic acids?
Which industrial process is used to manufacture ammonia?
Which gas is used in fire extinguishers to smother flames by displacing oxygen?
Which chemical is commonly used as a disinfectant and has the formula NaOCl?
Which of these is an example of a physical change?
Which subatomic particle has no charge?
Which law states that mass is neither created nor destroyed in a chemical reaction?
Which subatomic particle was discovered by J.J. Thomson?
What is saponification in chemistry?
What is the term for a solution that resists changes in pH?
Which of the following is an alkaline earth metal?