stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Chemistry Flashcards | StudBud
Explore
/
Chemistry
Chemistry
30 terms
·
StudBud Administration
·
67 plays
Imported from external platform
Flashcards
30 cards
F
Practice quiz
P
Host live
L
Questions
30
Answers
1
What did Rutherford’s gold foil experiment prove?
Atoms are made of plum pudding
Atoms are mostly empty space, with dense region of mass in the center
That electrons are real
An element is made of tiny particles called atoms
2
What is the correct formula for density?
Mass/Volume
Volume/Mass
Length*Width*Height
Liters/Volume
3
Which statement is part of Dalton’s Atomic Theory?
Protons and electrons are equal so the atom is electrically neutral
Most of an atom's mass and its positive charge are located in the nucleus
Atoms combine in simple, whole number ratios to form compounds
In a chemical reaction, matter is neither created or destroyed
4
Find the element
Na, ion
F, neutral
F, ion
Na, neutral
5
Who discovered electron?
Ernest Rutherford
J.J. Thomson
6
How many hours does it to master subject?
10
10,000
20
15,000
7
Charge of an ionic compound need to be?
1
0
10
5
8
How do you recognize ionic compounds?
Made of cations
Made of anions
Made of a cation and an anion
Everything before
9
What does the atomic number represent?
Its weight in amu
The number of protons
The number of quarks and strings in a particle
The number of neutrons
10
Which gas is the lightest?
Oxygen
Nitrogen
Hydrogen
Helium
11
What is the definition of Qualitative Data?
Non- Numerical Data
Accurate Data
A temperature
Numerical Data
12
What is an electron?
A stable subatomic particle with a with a negative charge
A stable subatomic particle occurring in all atomic nuclei, positive charge
13
What is a Covalent Bond?
Halogens
Elements in Group 1
Between two nonmetals
Between a metal and nonmetal
14
Find the element. Is that neutral atom or ion?
Neutral atom
Ion
15
What is an example of a homogenous mixture?
Sand
Lemonade
Salad
Stew
16
Creative seeing is what?
Thinking about the problem
Think about a problem until you get stumped
Know the problem
17
The most inert gas
Helium
Argon
Neon
Hydrogen
18
What should we add to 3 S to make a neutral compound? (S2-)
2 Mg (Mg2+)
Ba (Ba2+)
3 Li (Li+)
3 Ca (Ca2+)
19
Who organized the current Periodic Table?
Marie Curie
Albert Einstein
Charles Darwin
Dimitri Mendeleev
20
What is the acid in the stomach?
Hydrochloric acid
Sulfuric acid
Acetic acid
Phosphoric acid
21
What are the states of matter?
Earth, Water, Air, Fire
Liquid, Gas, Air
Solid, Liquid, Gas, Plasma
Solid, Liquid, Gas
22
Find the element
He
Li
Be
H
23
How do you find the atomic mass?
add up the mass of protons, neutrons, and electrons
add up the mass of protons and electrons
add up the mass of protons and neutrons
the mass of protons
24
How many significant digits in the number 43.700 m?
2
3
5
4
25
When did John Dalton discover the atom
1803
19000
1800
26
What is a Scientific Law?
Explanations of phenomena that are subject to change often
Another name for the scientific method
A brief explanation of phenomena that is used to predict the future
A decree set by scientist
27
When you Practice looking you
Become more aware
Learn about yourself
See the world for what it is
28
How many electrons are in Aluminum?
100
2
13
200
29
What kind of acid is formed in nature during a thunderstorm?
Nitric acid
Silicic acid
Sulfuric acid
Carbonic acid
30
Which water has the least impurities?
Mineral water
Sea water
Rainwater
