Metric Prefixes Show a
Prefix Symbol
1/20
Fraction
Sci. Notation
kilo-
K
1000
103
Which of the following conversions is/are incorrect
deci-
d
1/10
10-1
centi-
С
1/100
10-2
a. 1 meter = 1000 millimeters
b. 1 kilometer = 1000 meters
c. 500 centimeters = 0.5 meters
d. 100 millimeters = 1 centimeter
milli-
m
1/1 000
10-3
micro-
1/1 000 000
10-6
Check

In a popular classroom demonstration, solid sodium is added to liquid water and reacts to produce hydrogen gas and aqueous sodium hydroxide. part a write a balanced chemical equation for this reaction. express your answer as a chemical equation. identify all of the phases in your answer.

Which of the following nuclei would be the least stable a 2 protons, 2 neutrons b 1 proton 1 neutron c 1 proton 3 neutrons d 1 proton 2 neutrons

There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .