States of matter/classifications
This state of matter has a fixed volume but not a fixed shape.
What is a liquid
The volume of a 12-oz soft drink can is equal to how many milliliters?
What is 355 mL?
This is the amount of sig figs in this number: 10.05
What is 4.
Calculate the mass of an object with a density of 4.5 g/ml and a volume of 60ml.
What is 270 grams.
A substance with a uniform composition that can be separated into its components by physical means, like filtering, is this type of matter.
What is homogenous
How many centimeters are in the diameter of a red blood cell if it measures 3×10−4 inches?
What is 7.6×10−4 cm?
This is the reason zeros are not significant in this value:
0.00048
What is the zeros are at the beginning of a number.
A metal cube with sides of 2.0 cm has a mass of 74.6 g. What is its density?
The density is 9.325 g/cm³.
This is a type of change that does not alter a substance's chemical composition.
What is a physical change.
Convert 20 seconds to hours.
What is .0056 hours.
Answer the following according to sig figs:
(40 - 5.5) x 3 =
What is 100.
What is the percent error if a student measures the density of aluminum as 2.65 g/cm³ but the actual density is 2.70 g/cm³?
The percent error is approximately 1.85%
If I melt a block of gold is that a physical or chemical change?
Physical
Convert 380 miles to inches. (Remember sig figs)
(1 mi = 1609 m)
(1 m = 39.4 in)
What is 24,076,800 inches
Round the number 1.497×10^−3 to two significant figures.
1.5×10^−3
Convert the boiling temperature of gold, 2966 ℃, into degrees Fahrenheit and kelvin.
3239.15 K and 5370.80 F
Classify pancake syrup, baking soda, and baking powder as either an element, a compound, or a mixture.
What are: pancake syrup is a mixture, baking soda is a compound, and baking powder is a mixture?
A weightlifter who weighs 197 lbs wants to compete in a class limited to 90 kg. Use unit conversion to determine if they are light enough.
What is no? (197 lb×2.2 lb1 kg≈89.5 kg. The weightlifter is just under the 90 kg limit, so they are light enough.)
Perform the following calculation and report the answer with the correct number of significant figures: 28.0÷13.483.
What is 2.08?
What is the volume of 3.28 g gaseous hydrogen, density = 0.089 g/L?
36.85 L