Bet
Bussin'
No Cap
Left No Crumbs
Brain Rot
100
Which of the following is an example of a qualitative observation?
A. The shirt is red.
B. The shirt has a mass of 15 grams.
C. The shirt is 72 cm long.
D. The shirt is ugly.
A. The shirt is red.
100
How many significant figures are in the measurement 0.0103 mL?
A. 2
B. 3
C. 4
D. 5
3
100
A property of matter that depends on the amount of matter present would be considered a(n) property.
A. physical
B. chemical
C. intensive
D. extensive
extensive
100
Matter with an indefinite shape but a definite volume would be considered a .
A. solid
B. liquid
C. gas
D. plasma
liquid
100
. Which of the following is not an example of a physical
change?
A. Cutting a piece of string in half.
B. Freezing water into an ice cube.
C. Crumpling a piece of paper into a ball
D. Letting the food in your lunch box rot in your locker.
Letting the food in your lunch box rot in your locker
200
What is purposefully being manipulated and changed in an experiment is the .
A. control group
B. independent variable
C. constant
D. dependent variable
independent variable
200
Write the following numbers in standard notation: (4 pts)
a. 5.01 x 10-2
0.0501
200
Write the following numbers in scientific notation: (4 pts)
a. 78,700,000,000
7.87 X 1010
200
Differentiate between a compound and a mixture.
A compound is made when atoms are chemically combined in a fixed proportion like CO2 whereas a mixture is made when substances are physically combined like saltwater.
200
You can determine the identity of an element if you know how many _____ it has.
A. protons
B. neutrons
C. electrons
D. energy levels
protons
300
The nucleus of an atom has all of the following characteristics EXCEPT that it
A. is positively charged.
B. contains nearly all of the atom’s mass.
C. is very dense.
D. contains nearly all of the atom’s volume.
contains nearly all of the atom's volume
300
How many valence electrons does an atom of magnesium typically have?
A. 2
B. 3
C. 12
D. 24
2
300
The name of the force that is able to overcome the repulsive force between protons in an atom is the
A. weak nuclear force
B. strong atomic force
C. strong nuclear force
D. electromagnetic force
strong nuclear force
300
An atom is electrically neutral when its
A. neutrons balance the protons and electrons.
B. nuclear forces stabilize the charges.
C. numbers of protons and neutrons are equal.
D. numbers of protons and electrons are equal.
number of protons and electrons are equal
300
Draw a Bohr model for an atom of lithium with 4 neutrons.
400
Draw a Bohr model for an atom of sodium with a mass number of 23
400
Which of the following best describes the atoms involved in the formation of a covalent bond?
A. Nonmetals only
B. A metal and a nonmetal
C. Metals only
D. Charged atoms or groups of atoms
nonmetals only
400
Which of the following best describes the atoms involved in the formation of an ionic bond?
A. Nonmetals only
B. A metal and a nonmetal
C. Metals only
D. Charged atoms or groups of atoms
charged atoms or groups of atoms
400
Which of the following best describes the atoms involved in the formation of a metallic bond?
A. Nonmetals only
B. A metal and a nonmetal
C. Metals only
D. Charged atoms or groups of atoms
metals only
400
Which of the following statements is true about cations?
A. Typically nonmetals
B. Typically metals
C. Tend to share electrons
D. Tend to have negative oxidation numbers
typically metals
500
Which of the following is the correct name for NiO?
A. Nickel oxide
B. Nickel (I) oxide
C. Nickel (II) oxide
D. None of the above
Nickel (II) Oxide
500
Identify the number of atoms in the compound Ba(OH)2.
A. 2
B. 3
C. 4
D. 5
5
500
Cations have electrons and thus have a charge.
A. lost; negative
B. gained; negative
C. lost; positive
D. gained; positive
lost, positive
500
Anions have electrons and thus have a charge.
A. lost; negative
B. gained; negative
C. lost; positive
D. gained; positive
gained, negative
500
Write the names for the following compounds.
SrF2
Strontium flouride