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 describes a saturated solution?
What is the chemical name of NaOH?
What is the common name for the compound NaCl?
Which synthetic polymer was the first to be produced commercially and is used to make electrical fittings?
Which type of bond involves the complete transfer of electrons from one atom to another?
What is the chemical symbol for lead?
What is the chemical formula for ozone, the molecule that forms the protective layer in the stratosphere?
What is the IUPAC name for CH3-CH2-OH the simplest alcohol found in beverages?
Which test is used to detect the presence of starch using iodine solution?
Which element is a liquid at room temperature and is used in thermometers?
Which type of reaction in organic chemistry involves replacing a hydrogen atom with another atom or group?
Which acid is present in the human stomach to aid digestion?
What is the process of converting a gas into a liquid called?
What is the chemical formula for laughing gas used as a mild anaesthetic in dentistry?
Which type of chemical formula shows the simplest whole number ratio of atoms in a compound?
Which particle determines the chemical properties of an element?
Which process involves passing an electric current through a solution to cause a chemical reaction?
What is the process of converting a solid directly to a gas called?
Which organic functional group is present in carboxylic acids?
Which gas is used in fire extinguishers to smother flames by displacing oxygen?