Scenario: A star has a surface temperature of 20,000 k and an absolute magnitude of 1/10 that of our sun. What kind of star would this be classified as?

Sodium nitrite (nano2) reacted with 2−iodooctane to give a mixture of two constitutionally isomeric compounds of molecular formula c8h17no2 in a combined yield of 88%. draw reasonable structures for these two isomers. click the "draw structure" button to launch the drawing utility. place the two compounds in the appropriate boxes below.

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?