Sig Fig Calcs
5,000 m2 / 50 m =
100 m
Convert 4.5 ft to in.
SHOW ALL WORK
54 in
Is the following an element, compound, homogeneous mix, or heterogeneous mix?
Chicken-Noodle Soup
Heterogeneous Mix
Write down the equation for solving for density?
D = m / v
What is the name of the metal is next to Germanium?
Ga, Gallium
What is Mr. Taylor's favorite sports team?
Steelers
23.9 s + 55.963 s =
79.9 s
Convert 0.329 Hg to dg
SHOW ALL WORK
329 dg
Is the following an element, compound, homogeneous mix, or heterogeneous mix?
Air (N2, O2, CO2)
Homogeneous Mix
If an unknown substance has a volume of 33.5 mL and a mass of 216.98 g, what is the density of the substance?
6.48 g/mL
What is the element in the 4th period in the Alkali Metal family?
K, Potassium
What sport does Mr. Taylor coach at Lower Moreland?
Volleyball
1.3 g/mL x 55 mL =
72 g
Convert 129 in to km
SHOW ALL WORK
0.00328 km
Is the following property a chemical, physical intensive, or physical extensive property? One type of clarity is transparent, what are the other two?
Clarity
Physical Intensive
Translucent and opaque
Ethanol has a density of 0.789 g/mL. How much mass would a volume of 40.00 mL of ethanol have?
31.6 g
What is the name of the only liquid at room temperature that is a nonmetal?
Br, Bromine
What is the definition of a significant figure?
All known digits + 1 digit off uncertainty
1,010 mi / 16.55 hr =
61.0 mi/hr
Convert 55 g/mL to cg/DL.
SHOW ALL WORK
55,000,000 or 5.5 x 107
What is the difference between an element and a compound? Give an example of each.
Element- One element involved (one capital letter), like Fe
Compound- 2 or more different elements chemically bonded (two or more capital letters), like NaCl
If a block or zinc metal has a density of 7.14 g/mL, and has a mass of 25 g, what is the volume of the block of zinc?
3.5 mL
What is the name of the element in the 10th group, 5th period?
Pd, Palladium
What club sport did Mr. Taylor play in college?
Club Rugby
1,090 km + 500 km =
1600 km
Convert 2.3 L/cm3 to cL/dm3.
SHOW ALL WORK
230,000 cL/dm3
What is the difference between a physical extensive property and a physical intensive property? Give an example of each.
Physical extensive- depends on the amount of substance you have
EX- Mass, mass changes if you have a little vs a lot
Physical intensive- does not depend on the amount of substance you have
EX- Color, color does not change if you have a little vs if you have a lot
The initial reading on a graduated cylinder 22.8 mL. A block of aluminum with a density of 2.70 g/mL was dropped in the graduated cylinder, and the reading rose up to 39.2 mL. What is the mass of the aluminum block?
44.3 g
What is the number of the period of the element that is a gas at room temperature in the s block?
1
Miles experimentally determined the density of a metal to be 13.96 g/mL. The actual density of the metal is 14.45 g/mL. What is the percent error?
3.4 %