Sigfigs Study guides, Class notes & Summaries

Atom - Answer-The smallest particle of an element that retains the characteristics of the element Molecule - Answer-Forms when 2 atoms join together. Can be either an element or a compound Element - Answer-Made of only one kind of atom. Can be individual atoms or molecules of an element Compound - Answer-Made of at least 2 different kinds of elements (ex: H₂O) Pure substance - Answer-Only one type of particle that has distinct properties. Can be compounds or elements (ex: lead pipe, gold)...

CHEM410 - CH 1-6 Exam Questions With 100% Correct Answers size, shape, color, mass - answerdescribing matter: physical properties describes how matter changes its chemical structure - answerdescribing matter: chemical properties element and compound - answerwhat are the two types of substances? can't be broken down to simpler components - answerelement can be broken down into simpler components - answercompound material composed of two or more substances - answermixtures mixture compos...

CHEM410 - CH 1-6 Exam Questions With 100% Correct Answers size, shape, color, mass - answerdescribing matter: physical properties describes how matter changes its chemical structure - answerdescribing matter: chemical properties element and compound - answerwhat are the two types of substances? can't be broken down to simpler components - answerelement can be broken down into simpler components - answercompound material composed of two or more substances - answermixtures mixture compos...

CHEM410 - CH 1-6 Exam Questions With 100% Correct Answers size, shape, color, mass - answerdescribing matter: physical properties describes how matter changes its chemical structure - answerdescribing matter: chemical properties element and compound - answerwhat are the two types of substances? can't be broken down to simpler components - answerelement can be broken down into simpler components - answercompound material composed of two or more substances - answermixtures mixture compos...

In this list, which substance can be classified as a chemical? a. salt b. sleep c. cold d. heat e. temperature - Answer-Salt Which of the following is not a chemical? a. salt b. water c. light d. carbon dioxide e. sugar - Answer-Light Chlorofluorocarbons are broken down in the atmosphere by ________. a. nitrogen dioxide b. ozone c. iron d. AIDS e. ultraviolet light - Answer-UV Light The production of smog from NO gas requires ________. a. nitrogen b. chlorine c. water d. oxy...

CHEM410 - CH 1-6 Exam Questions With 100% Correct Answers size, shape, color, mass - answerdescribing matter: physical properties describes how matter changes its chemical structure - answerdescribing matter: chemical properties element and compound - answerwhat are the two types of substances? can't be broken down to simpler components - answerelement can be broken down into simpler components - answercompound material composed of two or more substances - answermixtures mixture compos...

A uniform combination of two or more pure substances can be classified as _____. - correct answer a homogeneous mixture Which of these pure substances is an element? - C12H22O11 (sucrose, table sugar) - O2 - CH4 (methane, the primary component of natural gas) - NH3 (ammonia, a component of fertilizer) - correct answer O2 Based on the organization of the periodic table, periods _____. - correct answer are the horizontal rows To which group and period does potassium b...

scientific notation - correct answer -if the exponent is positive it will be a BIG number -if the exponent is negative it will be a SMALL number length - correct answer meter mass - correct answer kilogram temperature - correct answer kelvin time - correct answer second amount of substance - correct answer mole area - correct answer A m^2 volume - correct answer V m^3 density - correct answer D kg/m^3 concentration - cor...

experiment 1 - answer-basic lab techniques identification of substances by physical properties experiment 2 - answer-chromatography experiment 3 - answer-analysis of hydrated of hydrated salt experiment 4 - answer-heat of neutralization sig figs - answer--non zero digits are significant -any zeros between digits are significant -zeros to the left of the first non zero digit are not significant -if a number ends in zeros to the right of the decimal point, those zeros are significa...

Includes everything from first few weeks in General Chemistry; from the atom to nomenclature.