Brainscape's Knowledge GenomeTM

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


See full index

Science Final additional flashcards > Final > Flashcards

Final Flashcards

You may prefer our related Brainscape-certified flashcards:
Biology 101 flashcards
1
Q

What is Democritus credited with/

A

the idea that matter is made up of indivisible particles too small to see

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

what subatomic particle have no net charge?

A

neutrons

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

inside of an atom between the nucleus and an electron is

A

empty space

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

nearly all the mass of the atom is located in the

A

nucleus

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

an atom has 10 protons 12 neutrons, and 11 electrons. what is the approximate atomic mass?

A

22 amu

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

how many elements make up water?

A

2

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

what is the defining characteristic of an elements

A

its matter that can’t be made simpler

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

___must have definite ratio of different kinds of atoms inside of them?

A

compounds

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

the copper on the statue of liberty used to look much like a new penny. The changer that took place to make it green was a ____ change

A

chemical

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

A____ is the smallest unit of an compound.

A

molecule

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

the subatomic particles located in the nucleus of an atom are….

A

neutrons and protons

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

A ___ change takes place when you separate salt from salt water by boiling off the water.

A

physical

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What subatomic particle have a mass of 1 amu?

A

neutrons and protons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

According to curie, which could affect the rate at which radioactive atoms shot out high energy particles?

A

the amount of the sample

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Which of the following compounds is ionic?
a. SO3 B. NaCL c. H2O d, none of these

A

B. NaCL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

The name of the following compound K2S is

A

Dipotassium monosulfide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is the right diagram for H2O?

A

..
H-O-H
..

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

The ____ bonds in water give hydrogen_____.

A

polar covalent/ positive charge

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

With the exception of hydrogen, when atoms bond they generally want ___electrons in their highest energy to become stable because they resemble____.

A

8/noble gasses

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

The name of the following compound CCL4 is:

A

Carbon tetrachloride

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Valence electrons are electrons in the____.

A

outer most energy level

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

the way in which an atoms bonds with another atom is directly related to the number and location of the______.

A

electrons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

In an ionic bond metals___.

A

give electrons to nonmetals

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Covalent bonds result from the___ of electrons while ionic bonds result from the___ of electrons.

A

sharing/transfer

24
Q

Which of the following elements is most likely to form a positive cation when bonding.
a. Flourine b. Chlorine c. Potassium d. Oxygen

A

c. Potassium

25
Q

as the atomic radius increases electronegativity_____.

A

decreases

26
Q

What is the correct diagram for a neutral aluminum atom as an LDD.

A

with 3 valence electrons around it

26
Q

when a fluorine and chlorine atom bond they will form a____.

A

polar covalent bond

27
Q

This element is in group 5, period 6

A

tantalum

28
Q

what is true about alkaline earth metals.

A

they are all reactive, they are all metals, they form +2 ions

29
Q

which of these elements is the most similar to calcium
a. barium b. bromine c. aluminum d. potassium

A

A. barium

30
Q

the number of what subatomic particles determine what element you have?

A

protons

31
Q

what is the symbol of the element with an atomic number .

A

Be

32
Q

how many neutrons do all isotopes of carbon have?

A

impossible to figure out even with periodic table

33
Q

most of the periodic table can be classified as

A

metals

34
Q

what are the physical properties of Yttrium.

A

shiny, malleable, good conducter

35
Q

a positive ion is called a

A

cation

36
Q

the isotopes of the same element differ in

A

neutrons and mass number

37
Q

bromine tends to form a__ ion with_____ electrons

A

-1,36

38
Q

what did Lavoisier observe in his elements involving steel wool burning?

A

that burning steel wool in a closed container kept the total mass the same

39
Q

what do neon and carbon have in common?

A

NOTHING

40
Q

The most reactive nonmetals are in what group

A

group 17

41
Q

1 cm3 is the same thing as

A

1 mL

42
Q

a centimeter is approximately

A

the distance across your pinky nail

43
Q

which of these is NOT a volume unit?

A

mL3

44
Q

a cube measures 3 cm on each side. What is the area of one face of the cube?

A

9 cm2

45
Q

a certain cube with a volume of 8cm3 has a mass 24 g. its density would be____ g/cm3

A

3

46
Q

Would a 3 g/cm3 sink or float in water?

A

sink

47
Q

a watt is a measurement for power in the metric system. Which of the following statements would be true?
a. 100 watts = 1 centiwatts b. 1 watt = 1000 milliwatts
c. 1 kilowatt = 10 watts d. none of the above

A

B. 1 watt = 1000 milliwatts

48
Q

Copper has a density of about 9 g/cm3. What would the mass of 18 cm3 be?

A

162 g

49
Q

How much time will it take a car traveling at 20 miles/hr to travel 100 miles?

A

5 hours.

50
Q

1 chain is a unit of length equal 66 ft. If you were to convert 100 ft chains which of the following would be the correct conversion factor to multiply by?
a. 1 chain/66 ft b. 1 ft/66chain
c. 66 chain/1 ft d. 66 ft/1 chain

A

a. 1 chain/ 66 ft

51
Q

A 1 liter bottle of water has_____ density compared to a 2 L bottle of water.
a. less b. more c. the same d. not enough information

A

c. the same

52
Q

A cube measures 3 cm on each side. What is the volume of the cube?

A

27 cm3

53
Q

the width of the classroom would best be estimated as

A

1000 centimeters

54
Q

A joule is a measurement for energy in the metric system. Which of the following statements would be true?
a. 1000 J = 1 mJ b. 100 cJ = 1 J
c. 1 kj = 10000 J d. none of the above

A

100 cJ = 1 J

55
Q

a certain cube with a volume of 24 cm3 has a mass of 8 g. It would______ in water which has a density of 1 g/mL

A

float

56
Q
A

Science Final additional flashcards (1 decks)

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