Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

[G11] [1ST SEM][MIDTERMS] GENCHEM > ALL LESSONS > Flashcards

ALL LESSONS Flashcards

1
Q

branch of science which deals with the study of matter- its composition, structure, properties, change it undergoes and the energy included in these changes

A

chemistry

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

matter has atwo types

A

pure substance and mixture

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

amount of substance

A

mass

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

anything that occupies space and has mass

A

matter

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

downward pull of object towards the center of the earth

A

weight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

property that is measurable w/o changing the substance

A

physical property

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

property that can only be observed by changing the type of substance

A

chemical properties

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

coffee, soft drinks, bronze are examples of

A

mixture

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

only depends on the type of matter
- boiling pt, freezing pt, melting pt, solubility, malleability, viscosity, taste, hardness, density, luster, color

A

intensive property

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

the one dissolved

A

solute

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

oxygen and water are examples of

A

pure substance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

only depends on the amount of matter
- height, weight, temp., size, shape, volume, mass

A

extensive properties

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

separation method used to filter out pure substances in mixtures made up of particles some of which are too large to pass through the filter

e.g: aircon

A

filtration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

another word for homogenous mixture, has 2 parts: solvent and solute

A

solution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

conversion of kelvin to celcius

A

c+273.15

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

procedure where a solid and liquid or 2 liquids with diff. boiling points can be separated using the principles of evaporation and condensation

e.g: gasoline from crude oil

A

distillation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

process in which a conversion factor writtin in a form of ratio is used to change units givein the data to the units desired

A

dimensional analysis

12
Q

solution where water is the solvent (aq) next to substance =

A

aqueous

12
Q

the one that dissolves

A

solvent

12
Q

quantity of matter in the object

A

mass

12
Q

components in mixtures have diff. attractions w/chromatography paper: diff components travel up the paper at diff. rates

e.g: blood testing/arson verification/ drug tests/ etc.

A

chromatography

13
Q

getting the mass/volume/temp of an object

A

density measurement

13
Q

formula for mass

A

m = density/volume (TRIANGLE)
M
D V

14
Q
  • antoine lavoisier
  • in a chemical reaction, no change in mass takes place: total mass of product = total mass of the reactants
A

law of conservation of mass

14
Q

amount of space occupied by a substance

A

volume

14
Q

tells how hot/cold an object is

A

temperature

15
Q

ratio of the mass of an object to the volume it occupies

A

density

15
Q

conversion of celcius to fahrenheit

A

1.8c+32

16
Q

conversion of fahrenheit to celcius

A

f-32/1.8

17
Q

uncertainty arising from uncontrolled variable in measurement causing one measurement to differ slightly from the next like when you move

A

random error or indeterminate error

accurate but not precise

17
Q

machine problems

A

systematic error
precise but not accurate

17
Q

process of determining the extent of dimensions, quantity or extent of something

A

measurements

17
Q

a compound always contains the same constituent elements

A

law of definite proportion

17
Q

simple way to keep track of large numbers with lots of zeroes

A

scientific notation

18
Q

if 2 elements can combine to form more than 1 compound, the masses of 1 element that’ll combine with a fixed mass of the other element are in a ratio of small numbers

A

law of multiple proportion

19
Q

dalton’s 2nd atomic theory

A

atoms of the same element are identical and are different from those of other elements

19
Q

(1809) he published his book: a system of chemical philosophy, where he proposed atomic theory of matter

A

john dalton

20
Q

dalton’s 4th atomic theory

A

DURING A CHEMICAL REACTION, ATOMS COMBINE, SEPARATE OR REARRANGE. NO ATOMS ARE CREATED AND NO ATOMS DISAPPEAR

20
Q

dalton’s 1st atomic theory

A

matter is made up of extremely small indivisible particles called atoms

21
Q

dalton’s 3rd atomic theory

A

compounds are composed of atoms of more than 1 element, combined in diff. ratios with whole number values

21
Q

when a neutral atom gains or loses 1 or more electrons, it becomes an

A

ion

[G11] [1ST SEM][MIDTERMS] GENCHEM (2 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions