Can someone pls explain? :'( A solid sample contains only CaCO3 and MgCO3.
To completely react the CaCO3 and MgCO3
present in the sample. 42.00 cm3 of 0.088 M
HCI were required. The anhydrous chloride salts
from the reaction, obtained by evaporation of
the filtrate weighed 0.19 g. The mass of CaCO3
present in the solid sample is (C = 12,0 = 16,
Mg = 24, Ca = 40, CI = 35.5)
(1) 0.05 g.
(2) 0.07 g
(3) 0.09 g
(4) 0.11g
(5) 0.12 g

Which statement explains which thermometer is more appropriate to measure the temperature of a liquid at 43.6 degrees celsius a) thermometer a, because it measures temperature more accurately than thermometer b b) thermometer b, because it measures temperature more accurately than thermometer a c) thermometer a, because it measures temperature more precisely than thermometer b d) thermometer b, because it measures temperature more precisely than thermometer a

What is the concentration, in grams per liter, of a solution prepared by dissolving 0.00040 mol hcl in 2.2 l h2o? assume that the volume of the solution does not change when the hcl is added.

Sari is studying for different sample of materials. this table shows the mass and volume of the samples. which sample material(s) could be liquid