An unknown gas has a density of 1.98 g/L. Calculate its molar mass and determine what gas it is from the table.
gas
molar mass
carbon dioxide
44
oxygen
32
nitrogen
28
helium
4
oxygen
O carbon dioxide
nitrogen
O helium

When a nucleus absorbs a neutron and then breaks apart, there are many products of the reaction. what is not a product of a nuclear fission reaction

Gwhich r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? which r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? −ch2−oh −ch2−o||c−nh2 −ch2−coo− −ch2−ch2−ch2−ch2−n+h3

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate