chapter 1 text review (chemistry)

at what point is the temperature in C degrees twice that of the temperature in F degrees?

-24.6 degrees C

the boiling point for liquid oxygen is 90.0 K. what is the boiling point in Fahrenheit?

-297.8 degrees F

atomic dimensions are often reported in Angstroms (1 A = 1 x 10^-10). if the atomic radius of an aluminum atom is 1.43 Angstroms, what is its radius in millimeters

1.43 x 10^-7 mm

what is the correct answer to the expression below: 1.472 x 10^-7 + 4.32 x 10^-9

1.515 x 10^-10

a carbon atom has a radius of 77 picometers. calculate the volume of a carbon atom in cubic meters [ V = 4/3pir^3]

1.9 x 10^-6 mm^3

round the answer to the following problem to the correct number if sig figs (14.0186 x 0.00485) + (15.0032 x .99452) = 14.99869

14.999

water freezes at 0.0 degrees C. what temperature does this correspond to in Kelvin

273 degrees K

how many significant figures are in the following volume: 5.00 x 10^4 mL

3

the accepted value for a quantity is 5.67 g. if the measured value is 5.89 g, what is the percent error?

3.88%

express 4.220 x 10^2 mL in standard notation

422.0 mL

if the outdoor temperature is 17.0 degrees C, what is the temperature in Fahrenheit?

62.6 degrees F

how many ounces are contained in a 2.0 L soft drink bottle? (1.00 ounce = 29.6 mL)

68 ounces

what is the correct way for converting Celsius to Kelvin

K= C - 273

all of the following relationships are false EXCEPT a.) 1.5 cm^3 = 1.5 mL b.) 3.00 m^3 = < 3.00L c.) 5.2 m^3 = 5.2 x 10^2 d.) 0.0455L = 455 mL e.) 22L = 22 m^3

a.) 1.5 cm^3 = 1.5 mL

which is not an appropriate unit for measuring density? a.) g/cm b.) g/mL c.) kg/L d.) g/L

a.) g/cm

all of the following are examples of intensive properties EXCEPT a.) solubility b.) boiling point c.) electrical conductivity d.) density e.) both boiling point and density

a.) solubility

all of the following statements concerning water (H2O) are false except a.) the percentage of oxygen in H2O is independent of where the sample is obtained b.) H2O is a heterogeneous mixture c.) H2O is a homogeneous mixture d.) H2O is an element e.) H2O has properties similar to those of the elements hydrogen and oxygen

a.) the percentage of oxygen in H2O is independent where the sample is obtained

all of the following are examples of chemical change EXCEPT a.) the fermentation of wine b.) the tarnishing of silver c.) the condensation of steam d.) the combination of butane gas e.) the rusting of iron

c.) the condensation of steam

what term best describes table salt (NaCl) at room temperature

compound

which of the following statements concerning matter is correct? a.) a gas has a fixed volume but not a rigid shape b.) a liquid has a fixed volume and a rigid shape c.) a liquid takes on both the volume and the shape of the container d.) a solid has a fixed volume and a rigid shape e.) both b and d are correct

d.) a solid has a fixed volume and a rigid shape

an extensive property is...

dependent upon amount

if vinegar is a homogeneous mixture of two liquids acetic acid and water, what would be the best method for separating the components of vinegar?

distillation

what method would be best for separating a mixture of ethyl alcohol and water?

distillation

all of the following statements are true EXCEPT a.) potassium is represented by the symbol K b.) zinc is represented by the symbol Zn c.) argon is represented by the symbol Ar d.) iron is represented by the symbol Fe e.) nitrogen is represented by the symbol Ni

e.) nitrogen is represented by the symbol Ni

what term best describes rocks, such as granite, or marble

heterogeneous mixture

an aqueous solution of copper sulfate is blue. this solution absorbs...

red light