Calculate the zn conc. of zn/zn++ // cl/cl- 0.1m emf=2.21v answers: a)0.1m b)0.2m c)0.05m d)0.15m!

What shape would a molecule with two bound groups and two lone pairs have?

Find the enthalpy of neutralization of hcl and naoh. 87 cm3 of 1.6 mol dm-3 hydrochloric acid was neutralized by 87 cm3 of 1.6 mol dm-3 naoh. the temperature rose from 298 k to 317.4 k. the specific heat capacity is the same as water, 4.18 j/k g. a. -101.37 kj b. 7055 kj c. 10,1365 kj

Ineed in question 5and6 in science the subject is science