| A | B |
|---|
| A chemical can be defined as a toxic substance? | NO |
| chemical can be defined as an unnatural additive placed in food? | NO |
| chemical can be defined as any substance that has a definitive composition. | YES |
| chemical can be defined as any substance that is not alive. | NO |
| True or False, Inorganic is the study of non-carbon related compounds? | TRUE |
| True or False, Inorganic is the study of the chemsitry of living things? | No, that would be BioChemistry |
| True or False, Inorganic is the study of mathematical modeling? | No, that would be theoretical chemistry |
| True or False, Inorganic is the study of the identification of the composition of materials? | No, that would be Analytical Chemistry |
| True or False? Biochemistry is the study of properties, changes, and relationships between energy and matter? | False, that would be PHYSICAL CHEMISTRY |
| True or False? Biochemistry is the study of the chemistry of living things? | No, that would be BioChemistry |
| True or False? Biochemistry is the study of crystals and minerals? | NO, that would be INORGANIC CHEMISTRY |
| True or False? Biochemistry is the study of carbon-containing compounds? | No, that would be ORGANIC CHEMISTRY |
| True or False? Organic Chemistry is the study of properties, changes, and relationships between energy and matter. | False, That is what Physical Chemistry is |
| True or False? Organic Chemistry is the study of the chemistry of living things. | False, study of chemistry of LIVING species is BIOCHEMISTRY, although some branches of organic chemistry certainly do fall under the umbrella of biochemistry as well |
| True or False? Organic Chemistry is the study of crystals and minerals. | False, that is InOrganic Chemistry |
| True or False? Organic Chemistry is the study of carbon-containing compounds. | TRUE, Organic Chemistry studies compounds containing CARBON, irregardless if the substance has life or not. |
| Technological development often occurs by accident? | False, although accidents certainly have at times contributed ton science, it has not done so "OFTEN" |
| Technological development often occurs long after the basis research is complete? | TRUE, most advancements come about only after years and years of hardwork and great attention to studying and experimenting, rarely ever is an advancement developed through accidental means or to simply make money. |
| Technological development often occurs in order to go learn basic information? | False, common sense should detail to you that it is not "OFTEN" that an advancement develops to simply learn more BASIC information |
| Technological development often occurs only to make money? | False, this would be an absurd though and not into reality. Research is long, hard and often VERY VERY EXPENSIVE let alone dangerous, would be foolish to start an attempt at a developmnt for financial gains. |
| Basic research is usually performed why? | to GAIN knowledge |
| Applied research is carried out for what reason most often? | to solve a PARTICULAR problem |
| Is this an EXTENSIVE property of matter---- MELTING POINT ? | NO--this would be an INTENSIVE property because the amount of matter present would have NO effect on this property |
| Is this an EXTENSIVE property of matter----Boiling Point? | NO--this would be an INTENSIVE property because the amount of matter present would have NO effect on this property |
| Is this an EXTENSIVE property of matter----VOLUME? | YES, since the amount of matter present WILL decide the magnitude of this property it is EXTENSIVE just as weight, height, area, circumference,etc. are extensive values. |
| Is this an EXTENSIVE property of matter----DENSITY? | NO--this would be an INTENSIVE property because the amount of matter present would have NO effect on this property |
| True or False, this is an INTENSIVE PROPERTY of matter---- AMOUNT of ENERGY? | False, amount of energy present,gained, or lost would depend on the amount of matter present therefore "amount of energy" would be an EXTENSIVE property, not intensive. |
| True or False, this is an INTENSIVE PROPERTY of matter---- DENSITY? | TRUE, density IS INTENSIVE because the amount of matter will NOT affect the density of a substance. |
| True or False, this is an INTENSIVE PROPERTY of matter---- VOLUME? | False, volume would be an EXTENSIVE property |
| True or False, this is an INTENSIVE PROPERTY of matter---- MASS? | False, MASS would be an EXTENSIVE property |
| The two most important properties of all matter are what? | Taking up of space and having a mass..That is, all matter MUST occupy some space and must posses a mass, even if incredibly minute. |
| An atom is the smallest unit of matter that maintains its chemical identity, TRUE or FALSE? | TRUE, the smallest unit retaining a matter's chemical identity is an ATOM |
| A compound is a pure substance that cannot be broken down into simplier, stable substances, TRUE or FALSE? | FALSE |
| A compound is a substance, made of two or more atoms that are chemically bonded, that can be broken down into simplier, stable substances, TRUE or FALSE? | TRUE |
| A compound is the smallest unit of matter that maintains its chemical identity,TRUE or false? | false |
| A compound is any substance, whether it is chemically bonded or not--TRUE or FALSE? | False |
| A measure of the quantity of matter is what? | MASS ----mass is the measure of a matter's quantity |
| Matter includes air, light, smoke, and water vapor--TRUE or false? If false, which one or ones are NOT considered to be matter. | FALSE, LIGHT is NOT matter because light does NOT occupy an actual volume NOR does light posses a mass--requirements of matter. |
| True or false? Mass is often measure with a spring scale? | false |
| True or false? Mass is expressed in pounds units? | false |
| True or false? As the force of Earth's gravity on an object increases, the object's mass increases as well. | False---MASS is a CONSTANT, the WEIGHT however changes because essentially weight is the affect of gravity on a mass--some areas of Earth have a greater affect on mass than do other areas, so weight changes whereas the objects's mass has remained constant throughout |
| True or false? Mass is determined by comparing the mass of an object with a set of standard masses that are part of a balance. | TRUE |
| Should a student classify an unknown substance as being an element, a compound, a mixture, or a plasma if the student made the following records( data collections) while completing an experiment.........Student noted substance was a yellow , shiny powder and that this powder was attracted by a magnet. | This must be a mixture |
| Is grinding a PHYSICAL CHANGE? | yes |
| Is cutting a PHYSICAL CHANGE? | yes |
| Is boiling a PHYSICAL CHANGE? | yes |
| Is burning a PHYSICAL CHANGE? | NO--BURNING is NOT a PHYSICAL CHANGE but rather a CHEMICAL CHANGE |
| Is rusting a CHEMICAL CHANGE? | yes |
| Is igniting a CHEMICAL CHANGE? | yes |
| Is melting a CHEMICAL CHANGE? | NO--melting is a PHYSICAL CHANGE, not a chemical change |
| Is burning a CHEMICAL CHANGE? | yes, burning is a CHEMICAL change |
| A chemical change ocurs when dissolved minerals solify to form a crystal. | FALSE |
| A chemical change ocurs when ethanol is purified through distillation. | False |
| A chemical change ocurs when salt deposits form from evaporated seawater. | False |
| A chemical change ocurs when a leaf changes color in the fall. | Color changes in a leaf happens due to a CHEMICAL CHANGE |
| A physical change occurs when a peach spoils. | False, fruit spoiling is a CHEMICAL change |
| A physical change occurs when a silver bowl tarnishes. | Tarnishing of metals is a CHEMICAL change |
| A physical change occurs when a bracelet turns your wrist green. | False, this is a chemical change |
| A physical change occurs when a glue gun melts a glue stick. | TRUE, the STATE of the gluestick goes from solid to liquid |
| Noble gases are in Group 18, and are best known because they are_______?_______? | unreactive |
| Nitrogen monoxide and oxygen, both colorless gases, form a red-brown gas when mixed. Nitrogen monoxide and oxygen are what in this reaction? | REACTANTS....The product would be the red-brown gas |
| A state of matter in which a material has no definitive shape but has a definitive volume is what state? | LIQUID |
| Under ordinary conditions of temperature and pressure, the particles in a gas are in what relation to one another? | very far apart from one another |
| True or false, the liquid state of matter has a definitive volume but no definitive shape? | TRUE |
| A solid substance always retains its shape irregardless of its container? | True--assuming the solid is not forced to alter its shape |
| Plasma is the 4th state of matter. In the plasma state, what do atoms do? | Lose their electrons |
| What happens to the energy when a substance changes states? | The energy changes form, but it is NEVER destroyed nor increased. |
| A mixture is a blend of any two or more kinds of matter , as long as each maintains its own unique properties. | TRUE |
| If a mixture is uniform in composition, it is said to be what? | homogeneous |
| A homogeneous mixture is also called what? | a SOLUTION |
