AP Intermediate 1st Year Some Basic Concepts of Chemistry — practice questions
18 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice AP Intermediate 1st Year Some Basic Concepts of Chemistry in the app →Chemistry is described as the science of molecules and their:At the bulk level, matter is classified as a pure substance or a:A mixture may be heterogeneous or:Sugar solution and air are given as examples of which kind of mixture?The pure substances that form a mixture are called its:The law of conservation of mass was put forth by Antoine:In which year was the law of conservation of mass put forth?The law of definite proportions was given by which French chemist?The law of definite proportions is also referred to as the law of definite:Who proposed the law of multiple proportions, in 1803?In heterogeneous mixtures, the composition throughout is:Carbon 12 is assigned a mass of exactly twelve atomic mass:Significant figures are digits known with certainty plus one that is:How many significant figures does 0.0052 have?How many significant figures does 0.200 g have?In numbers written in scientific notation, which digits are significant?In multiplication, the result carries no more significant figures than the measurement with:Uncertainty in an experimental value is indicated by mentioning the number of: