chem 105 (WSU) Exam 1 with correct answers 100% 2026C

hem 105 (WSU) Exam 1 with correct answers 100% 2026C Atoms - Correct Answer the fundamental "building blocks" of which elements are composed Molecule - Correct Answer two or more atoms joined by chemical bonds Law of Conservation of Mass - Correct Answer Matter is neither created nor destroyed Atomic Theory (Dalton) - Correct Answer 1) each element composed of atoms; 2) all atoms of one element are identical; 3) atoms of different elements have diff properties; 4) atoms are neither created nor destroyed; 5) atoms can combine to form compounds; 6) in any compound, number and kind of atoms are constant 3 states of matter - Correct Answer solid, liquid, gas Solid (S) - Correct Answer Packed close together in a fixed location with definite volume Liquid (aq) - Correct Answer Free to move relatively around each other with a fixed volume but not a fixed shape Gas (G) - Correct Answer Huge area of space between and free to move wherever with a lacking definite shape and volume; conforms to its container Crystaline solid - Correct Answer Arranged pattern with long-ranged, repeating orders amorphous solid - Correct Answer Doesn't have any long-range shape order Pure Substance - Correct Answer composed of only one type of atom or molecule Mixture - Correct Answer material composed of two or more elements or compounds that are physically mixed together Element - Correct Answer A pure substance made of only one kind of atom, can not be broken down Compound - Correct Answer A substance made up of atoms of two or more different elements combined, definite proportions heterogeneous mixture - Correct Answer a mixture in which the composition is not same throughout homogeneous mixture - Correct Answer a mixture in which the composition is the same throughout physical change - Correct Answer A change in a substance that does not change its identity chemical change - Correct Answer a change that produces matter with a different composition than the original matter physical property - Correct Answer a characteristic that can be observed or measured without changing the identity of the substance chemical property - Correct Answer a property of matter that describes a substance's ability to participate in chemical reactions Kelvin - Correct Answer K = °C + 273 Celcius - Correct Answer °C = (°F - 32)/1.8 Fahrenheit - Correct Answer °F = 1.8(°C) + 32 SI prefixes - Correct Answer mega, kilo, deci, centi, milli, micro, nano Mega - M - Correct Answer 10^6 (1,000,000) Kilo - k - Correct Answer 10^3 (1,000) Deci - d - Correct Answer 10^-1 (0.1) Centi - c - Correct Answer 10^-2 (0.01) Milli - m - Correct Answer 10^-3 (0.001)