2 which amoung the following measurements
the highest number of significant
containsFiqures
a) 1.23x10^-3 kg b) 1.2x10^-3 kg c)0.123×10^3kg
d) 2x 10^5 kg

Matches the chemical name of each oxide of phosphorus to its chemical formula

Ageologist determines that a sample of a mineral can't be scratched by a steel nail but can be scratched by a masonry drill bit. based on this information, the sample mineral has to be softer than a. orthoclase. b. fluorite. c. apatite. d. corundum.

As air becomes more dense, (select all that apply) o. air weighs less o. gas molecules are closer together o. air is colder o. air weighs more o. gas molecules are further apart o. air is hotter