General Science
What is this piece of chemistry glassware called?
A flask
What's the name of the particle inside the nucleus of an atom with a positive charge?
Proton
What type of bond is characterized by two atoms sharing electrons?
a) covalent bonds
b) ionic bonds
c) chemical bonds
d) polar bonds
a) covalent bonds
What does the term salinity mean?
a) how much solvent there is in a solution
b) how much salt there is in a solution
c) how many salamanders there are in a pond
d) how many salmon there are in a body of water
b) how much salt there is in a solution
Which of these is not a chemical reaction?
a) burning a candle
b) digesting food
c) boiling water
d) toasting bread
c) boiling water
What unit do we usually measure mass in?
grams
Which of these elements has the most protons?
Hydrogen (H)
Oxygen (O)
Francium (Fr)
Neon (Ne)
Francium (Fr)
Which two atoms from this list would form an ionic bond? (multiple correct answers)
F, Na, Cl, Br, I
NaF, NaBr, NaCl, NaI
Which is smaller?
0.1
0.15
0.015
0.09
0.015
color change, smell, fire, pH change, bubbles, solid, ect
Chemistry is the study of __________ & ___________
a) light & atoms
b) chemicals & forces
c) matter & energy
d) living things & the environment
c) matter & energy
Which atom has a larger atomic radius Ne or Kr?
Kr
What are the 3 types of bonds we learned about in class?
covalent, ionic, metallic
Which of these is not a mammal?
a) a blue whale
b) a dog
c) a chicken
d) a bat
c) a chicken
Is this chemical reaction balanced?
O2 + H2 --> H2O
no
What's the name of the science class you will take next year?
a) physics
b) environmental science
c) biology
d) earth science
b) environmental science
What part of the atom do the electrons occupy?
Orbitals
Which of these substances would dissolve in water (choose all that apply)?
acetic acid (polar), octane (non-polar), lanolin (non-polar), ethanol (polar)
ethanol & acetic acid
When an object is moving, what type of energy does it have?
a) thermal energy
b) kinetic energy
c) potential energy
d) momentum energy
b) kinetic energy
Consider this chemical reaction
3 H2 + N2 --> 2 NH3
How many molecules of N2 react with 3 molecules of H2
1 molecule
What tool do we use to measure the volume of liquids?
a) beaker
b) scale
c) flask
d) graduated cylinder
d) graduated cylinder
If I add a neutron to an atom which of the following happens?
a) The charge becomes +1
b) The mass increases
c) The element changes
d) The charge becomes -1
b) The mass increases
What type of bond does this chemical have? H2O
Covalent
What is the maximum number of times you can fold a standard piece of paper in half?
7 times
Calculate the mass of CaI2 using the periodic table
294 grams