What are the six essential elements for life?, C, H, N, O, Mg, K, N, O, P, S, Ca, Fe, C, H, N, O, P, S, C, H, O, Na, K, Cl, How many electrons does the first energy level hold?, 6 electrons, 2 electrons, 4 electrons, 8 electrons, How many electrons do most other energy levels in these notes hold?, 8 electrons, 2 electrons, 6 electrons, 10 electrons, What are the outermost electrons called?, Paired electrons, Core electrons, Free electrons, Valence electrons, What molecule is made from 2 H + 1 O?, O₂, H₂, H₂O, CO₂, What is the ratio of hydrogen to oxygen in water?, 1:2, 2:1, 2:2, 1:1, Ionic bonding involves what?, Transfer, Unequal sharing, Equal sharing, Share, Covalent bonding involves what?, Transfer, Attraction, Repel, Share, A polar bond means what?, No bonding, Equal sharing, Electron transfer, Unequal sharing, A nonpolar bond means what?, High charge, Electron transfer, Equal sharing, Unequal sharing, What is attraction between the same substance called?, Capillary action, Cohesion, Surface tension, Adhesion, What is attraction between different substances called?, Adhesion, Cohesion, Capillary action, Specific heat, What is movement through narrow spaces called?, Evaporation, Surface tension, Adhesion, Capillary action, What property makes the surface of water resist breaking?, Adhesion, Cohesion, Surface tension, Capillary action, Why does ice float?, Less dense than liquid water, It absorbs heat, It has no mass, More dense than liquid water, Water resists temperature change because of what?, Surface tension, High specific heat, Ionic bonding, Low density

Quick Mixed Review

Leaderboard

Visual style

Options

AI Enhanced: This activity contains content generated by AI. Learn more.

Switch template

Continue editing: ?