Exam 1: Chemistry: Matter and Measurement

A mass of mercury occupies 0.750 L.What volume would an equal mass of ethanol occupy? The density of mercury is 13.546 g/mL and the density of ethanol is 0.789 g/mL.

Which is not true?

An automobile uses gasoline at a rate of 35 mi/gal,which is the same as ________ km/L (1 km = 0.6214 mi,1 gal = 3.78 L).

Round off 00 907506 to four significant figures.

The volume of a well is 40.0 ft³.How many kilograms of concrete will it take to fill the well if the density of concrete is 2.85 g/cm³?

What group of elements does the shaded area in the following periodic table indicate?

What group of elements does the shaded area in the following periodic table indicate?

What group of elements does the shaded area in the following periodic table indicate?

Which element has the chemical symbol,P?

The number of significant digits in 0.07090 g is ________.

Which of the following elements is a gas at room temperature?

Which of the following underlined items is not an extensive property?

A certain solid has a density of 8.0 g/cm³.If 4.0 g of this solid are poured into 4.00 mL of water,which drawing below most closely represents the volume of water after the solid is added?

Convert 1 μm to meters.

One liter is approximately the same as one U.S.

Elements are classified as metals,nonmetals,or semimetals.At room temperature a certain element exists as a dull yellow solid that is a poor conductor of electricity and is brittle.This element is most likely a ________.

Cesium belongs to the ________ group of the periodic table.

An acetylene molecule contains 2 atoms of carbon.The number 2 represents how many significant figures?

The diameter of an atom is approximately 1 × 10^-10 m.What is the diameter in millimeters?

A student measured the diameter of a sphere and determined the average value.His measurements are 5.17 cm,5.16 cm,5.16 cm,and 5.17 cm.If the true diameter is 6.18 cm,what can be said about the student's results?