Test 1 Chem 121

Metric Unit

100

Femto (f) metric prefix is

0.000000000000001       or      10^-15

200

2.9 mVolts, Convert to µVolts

2,900 µVolts

300

Assume metric quantity, If Helen of Troy had a face that would "launch a thousand ships," then a face that would launch a single ship would be:

1 milliHelen

400

Convert 651 Tbytes to Mbytes

651000000

500

Which of the following units that is named for a scientist is NOT a derived SI unit?

A) the pressure unit Pascal (Pa)
B) the frequency unit Hertz (Hz)
C) the power unit Watt (W)
D) the force unit Newton (N)
E)the current unit Ampere (Amp)
F) the energy unit Joule (J)

E) the current unit Ampere (Amp)

Measurements

100

State the number of significant figures in 1,000,101

7

200

Use significant figures to calculate 

1.419934 ÷ 62

0.023

300

A measurement which is reproducible is called:

Precise

400

convert 1 m³ to km³

0.000000001 km³

500

convert 5.0 gal/day to mL/min

13.1 mL/min

Atomic Theory

100

What is the charge of a proton and electron.

1.60 * 10^-19 C

200

Name two parts of Dalton's Atomic theory

1) All matter is composed of small indivisible particles called atoms.                                                           2) All atoms of an element are identical. Atoms of different elements are unique.                                  3)When atoms combine in definite proportions, they are forming the same compound. When atoms combine in multiple proportions, they are forming different compounds.                                               4) In a chemical reaction matter is converted from one form to another, but the atoms in the matter are simply rearranged, not created or destroyed.