Name the element which lies in group IA and 3rd period. What is the valency of it and why?

What is the concentration of fecl3 in a solution prepared by dissolving 10.0 g of fecl3 in enough water to make 275 ml of solution?

What is the pressure of 0.540 mol of an ideal gas at 35,5 L and 223 K? Use PV = nRT and R = 8.314 okPa molok 0.715 kPa 2.45 kPa 28.2 kPa 62.7 kPa Mark this and return

What is the standard notation of the isotope H-2

How many of the following are compounds? H2O, N2O4, NaOH, MnO2, HF

What is conserved during all chemical reactions?

A large sample of solid calcium sulfate is crushed into smaller pieces for testing. which two physical properties are the same for both the large sample and one of the smaller pieces?

How do i give the number of significant figures in 0.0037 mm

Which of these are ionic compounds?

Which property can be defined as the ability of a substance to be hammered into thin sheets

Select the group of organelles that is common to both plant cells and animal cells. A. nucleus, cytoplasm, ribosomes, chloroplasts B. cell wall, ribosomes, cell membrane, mitochondria C. cytoplasm, mitochondria, cell wall, nucleus D.