What indicates that an area in the northern hemisphere is experiencing summer?

What is the mass of 0.46 mol of mgcl2

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

15. what volume of cci, (d = 1.6 g/cc) contain6.02 x 1025 cci, molecules (ci = 35.5)(1) 10.5 l(2) 250 ml(3) 9.625 l(4) 1.712 lplz answer with step by step explanation