Calculate the number of inolecules of carbon (IV) oxide
produced when 10g of CaCO3 is treated with 100cm of
0.2 mol dm - HC1. The equation of the reaction is
CaCO3ts, + 2HClap --> CaClaag, + H2O,0 + CO2(g)
Ca=40:0=120=161

Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

How do you lengthen a pattern piece? (family and consumer science, sewing)