Stoichiometry Worksheet 1. Na2SIO3 (s) + 8 HF(aq) → H2SiFs (aq) + 2 NaF(aq) + 3 H20 (1)
a. How many moles of HF are needed to react with 0.300 mol of Na2SiO3?​

18. use the activity series to predict whether the following synthesis reaction will occur. write the chemical equations for the reaction if it's predicted to occur. (s) + o2(g) -> *note: it is possible.*

An atomic nucleus is composed ofa)protons.b)protons and neutrons.c)protons and electrons.d)protons, neutrons, and electrons.

Select the correct answer from each drop-down menu. to make a table of the elements, dmitri mendeleev sorted the elements according to their . he then split the list of elements into several columns so that elements beside each other had similar .