Numbers
Periodic Table
Mixtures and Compounds
Bonding
Mystery Chem
100
convert 0.00431 into scientific notation
What is 4.31x10-3
100
How many protons are in an element of Lithium
What is 3
100
How would you separate a mixture of iron, sand, and salt in water
What is magnet to remove the iron, filtration to remove the sand, distillation to remove the salt.
100
The correct charge on the chromate ion is
What is -2
100
What is the shape and bond angle for a molecule of SO2?
What is bent, 120 degrees
200
The SI Unit for Length
What is the meter (m)
200
What is the maximum number of electrons in n=2
What is 8
200
What type of property - chemical or physical, is flammability
What is chemical
200
what type of bond forms between a diatomic molecule of nitrogen
What is a nonpolar covalent bond
200
Name the following ion: OH-1
What is Hydroxide
300
convert 1.42 g to kilograms
What is 0.00142kg
300
Chlorine is classified as a
What is a halogen
300
Will the density of an object change if the size of the object changes, but the composition stays the same?
What is No
300
what does a roman numeral indicate?
What is the charge on the transition metal (ex. Copper (II) Cu+2)
300
What happens when an electron moves from a higher energy level to a lower energy level?
What is it releases energy as ligh
400
round 402.06 to 4 significant figures
What is 402.1
400
Nonmetals are located where on the periodic table?
What is the right side of the staircase
400
How many neutrons are in Zn-65?
What is 35
400
When calcium and oxygen are mixed, what type of bond forms?
What is an ionic bond (Metal and Nonmetal)
400
Which rule states that electrons must fill all suborbitals in one spin direction before pairing?
What is Hund's Rule
500
If the mass is 6g and the initial volume is 12mL and the final volume is 18mL, what is the density?
What is 1g/mL
500
The energy required to remove an electron from an atom
What is ionization energy
500
What type of sample is formed when NaCl is completely dissolved in water?
What is a Homogeneous Mixture
500
The correct formula for oxygen difluoride
What is OF2
500
When working in the lab with glassware and a flame, what ensures proper safety
What is wearing your safety glasses at all times, closed toe shoes, hair tied back, dangling scarves, jewelry, sweatshirts removed, and alerting the teacher of any mishaps including burns or broken glassware.
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