Which of the following sets of elements is written in order of decreasing atomic radius? (1) platinum, lead, arsenic, radium, tungsten.
(2) arsenic, lead, platinum, tungsten, radium.
(3) radium, tungsten, platinum, lead, arsenic
.(4) tungsten, platinum, lead, arsenic, radium

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.

Which is true of a liquid? it has a definite volume but not a definite mass.it has a definite mass but not a definite volume.it has a definite volume but not a definite shape.it has a definite shape but not a definite volume.

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