CHEM 210 EXAM WITH CORRECT
QUESTIONS AND ANSWERS 2025
1) what material can not be broken down into a simpler form - CORRECT
ANSWERSelement
2) an example of a chemical change is - CORRECT ANSWERSburning
3) an example of a chemical formula is - CORRECT ANSWERSH2SO4
4) the density of a material depends on - CORRECT ANSWERSmass and volume
5) classification based on measurements is said to be - CORRECT ANSWERSquantitive
6) melting point is a - CORRECT ANSWERSphysical property
7) which has the greatest density out of rock,oxygen,oil,or ice - CORRECT ANSWERSrock
8) coal burns in a furnace producing light and heat the reaction is - CORRECT
ANSWERSexothermic
9) what is the state change in which a solid becomes a liquid - CORRECT ANSWERSmelting
10) which of the following is a mixture baking soda, gasoline, salt,sugar - CORRECT
ANSWERSgasoline
11) alloy - CORRECT ANSWERSA mixture of two or more metals
12) aqueous solutions - CORRECT ANSWERSsolutions in which water is the solvent
13) chemical property - CORRECT ANSWERScan be observed only when there is a change in
composition of a substance
14) compound - CORRECT ANSWERSa chemical combination of two or more elements
joined together in a fixed proportion
, 15) exothermic - CORRECT ANSWERSReleases energy
16) mass - CORRECT ANSWERSthe measure of the ammonite of matter than an object has
17) matter - CORRECT ANSWERSAnything that has mass and takes up space
18) physical change - CORRECT ANSWERSthe type of change in which the identity of the
substance does not change
19) quantitive - CORRECT ANSWERSnumbers
20) solute - CORRECT ANSWERSthe material that is dissolved in a solution
21) an ice melting is - CORRECT ANSWERSphysical change
22) charcoal burning is - CORRECT ANSWERSchemical change
23) iron rusting is - CORRECT ANSWERSchemical change
24) rubbing alcohol evaporating from the skin - CORRECT ANSWERSphysical change
25) if you were given a milliliter of copper and one of silver which would weigh more -
CORRECT ANSWERScopper
26) corks are used on fishing lines because they float what would you say about them -
CORRECT ANSWERSthey have a lower density
27) calculate the density of carbon dioxide if 250.0 ml of the gas has .49997g D=M/V -
CORRECT ANSWERS.4997/250.0=.0019988 G/ML
28) what would you use to measure the amount of milk that is in a glass - CORRECT
ANSWERSliter
29) what would you use to measure the size of a table top - CORRECT ANSWERSmeter
30) what would you use to measure amount of oil for brownies - CORRECT ANSWERSliter
31) what would you use to measure mass of pennies in a jar - CORRECT ANSWERSgrams
QUESTIONS AND ANSWERS 2025
1) what material can not be broken down into a simpler form - CORRECT
ANSWERSelement
2) an example of a chemical change is - CORRECT ANSWERSburning
3) an example of a chemical formula is - CORRECT ANSWERSH2SO4
4) the density of a material depends on - CORRECT ANSWERSmass and volume
5) classification based on measurements is said to be - CORRECT ANSWERSquantitive
6) melting point is a - CORRECT ANSWERSphysical property
7) which has the greatest density out of rock,oxygen,oil,or ice - CORRECT ANSWERSrock
8) coal burns in a furnace producing light and heat the reaction is - CORRECT
ANSWERSexothermic
9) what is the state change in which a solid becomes a liquid - CORRECT ANSWERSmelting
10) which of the following is a mixture baking soda, gasoline, salt,sugar - CORRECT
ANSWERSgasoline
11) alloy - CORRECT ANSWERSA mixture of two or more metals
12) aqueous solutions - CORRECT ANSWERSsolutions in which water is the solvent
13) chemical property - CORRECT ANSWERScan be observed only when there is a change in
composition of a substance
14) compound - CORRECT ANSWERSa chemical combination of two or more elements
joined together in a fixed proportion
, 15) exothermic - CORRECT ANSWERSReleases energy
16) mass - CORRECT ANSWERSthe measure of the ammonite of matter than an object has
17) matter - CORRECT ANSWERSAnything that has mass and takes up space
18) physical change - CORRECT ANSWERSthe type of change in which the identity of the
substance does not change
19) quantitive - CORRECT ANSWERSnumbers
20) solute - CORRECT ANSWERSthe material that is dissolved in a solution
21) an ice melting is - CORRECT ANSWERSphysical change
22) charcoal burning is - CORRECT ANSWERSchemical change
23) iron rusting is - CORRECT ANSWERSchemical change
24) rubbing alcohol evaporating from the skin - CORRECT ANSWERSphysical change
25) if you were given a milliliter of copper and one of silver which would weigh more -
CORRECT ANSWERScopper
26) corks are used on fishing lines because they float what would you say about them -
CORRECT ANSWERSthey have a lower density
27) calculate the density of carbon dioxide if 250.0 ml of the gas has .49997g D=M/V -
CORRECT ANSWERS.4997/250.0=.0019988 G/ML
28) what would you use to measure the amount of milk that is in a glass - CORRECT
ANSWERSliter
29) what would you use to measure the size of a table top - CORRECT ANSWERSmeter
30) what would you use to measure amount of oil for brownies - CORRECT ANSWERSliter
31) what would you use to measure mass of pennies in a jar - CORRECT ANSWERSgrams
