Which of the following distinguishes a nuclear reaction from a chemical reaction? a. it involves atoms.
b. there is an exchange of electrons.
c. mass is conserved.
d. there is a change in the nucleus.

Drug abuse will not lead to physical and psychological dependence. true or false ?

Which of the following shapes would represent a molecule with two bonded atoms and 3 lone pairs on only one of them , trigonal planar , bent , trigonal pyramidal , linear

How many moles of sulfuric acid (h2so4) are needed to react completely with 6.8 moles of lithium hydroxide (lioh)? 2lioh + h2so4 → li2so4 + 2h2o a. 3.4 mol h2so4b. 6.8 mol h2so4 c. 10.2 mol h2so4 d. 13.6 mol h2so4