Vocabulary
What is a well-substantiated, comprehensive, testable explanation of a particular aspect of nature.
Theory
How many significant figures are in 1070? Write this number in significant notation?
No leading zeros, so 4 sig figs. 1.070 * 10^3
How many centimeters are in 3 inches?
(1 in = 2.54 cm)
7.62 cm
How many protons are in a Sodium atom?
11
What is the name of CaS?
Calcium Sulfide
What summarizes a vast number of experimental observations, and describe or predict some facet of the natural world?
Law
How many significant figures are in 0.004930? Write this number in scientific notation.
4 sig figs. 4.930 * 10 ^-3
How many kilograms are in 6.5g?
0.0065 kg, or 6.5 * 10^-3 kg
What is the atomic mass of Carbon?
12
What is the name of N2O4?
Dinitrogen Tetroxide
What are pure substances that CAN be broken down into simpler substances by chemical changes?
Compound
How many significant figures are in 17.300? Write this number in scientific notation?
5 sig figs. 1.7300*10^1
How many Liters are in 252 centiliters?
2.52 L
List the following elements are in the order of metal, metalloid, and non-metal. (Arsenic, Cobalt, and Argon)
Cobalt, Arsenic, Argon
What is the name of CBr4?
Carbon tetrabromide
What is a mixture that has a uniform composition throughout called? What is a mixture that varies in composition?
A. Homogeneous Mixture. 'B. Heterogeneous Mixture
How many significant figures are in (5.62)*(7.4)? What is the answer written in scientific notation?
2 sig figs. 4.2*10^1
How many grams are in 3779 ug?
3.779*10^-6 g
What element lies in Group 13, Period 4?
Gallium
What is the name of Mg3P2?
Magnesium Phosphide
What is an element called when it gains or loses electrons?
Ion
How many sig figs are in 56.932-24.8? What is the answer written in scientific notation?
To the tenth decimal place, so in this case it would be 3 sig figs. 32.1, or 3.21*10^1
How many km^2 are in 96,981 mi^2?
251179.64 km^2
List the diatomic molecules.
Br2, I2 N2, Cl2, H2, O2, F2
What is the name of FeSO4?
Iron (II) Sulfate