Ati Teas 7 Chemistry Questions And Answers 2022

ATI TEAS 7 Chemistry Questions and answers 2022 Matter Anything that has mass + volume divisions of matter pure substances and mixtures Pure Substance A sample of matter, either a single element or a single compound, that has definite chemical and physical properties EX: O, H, CL, ( elements ) Compounds: H20, NaCL definite properties: always the same Heterogenous mixtures are... mixtures that are not uniform throughout Oil and water - creating a distinct boundary Homogenous mixture example a mixture in which the composition is uniform throughout salt water Is blood homogeneous or heterogeneous? blood under microscope is heterogenous regular blood is homogenous Mass A measure / quantity of the amount of matter in an object VolumeThe amount of space an object takes up weight measurement of the gravitational pull on a object - greater the gravitational pull on a object the more it will weigh will the weight of a space ship change yes will the mass of a spaceship change no Sub-atomic particles protons, neutrons, electrons Protons Positively charged particles Neutrons the particles of the nucleus that have no charge Electrons Negatively charged particles Atoms smallest unit of matter What is the center of an atom? protons and