a metal 'x' burnt in air. a while dazzling light is produced along with the formation of a compounds a)name 'x' and 'y' b)what will be the nature of 'y'

Which of the following is most likely true about water in chemical systems? a) water dissolves nonpolar ionic compounds. b) water dissociates ionic compounds. c) water dissociates covalent molecules. d) water dissolves nonpolar covalent substances.

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by

At a certain temperature the rate of this reaction is first order in hi with a rate constant of : 0.0632s2hig=h2g+i2g suppose a vessel contains hi at a concentration of 1.28m . calculate how long it takes for the concentration of hi to decrease to 17.0% of its initial value. you may assume no other reaction is important. round your answer to 2 significant digits.