1. The main component of egg shells is CaCO3, If 25.0 cm of 0.700 moldm-HC1 reacted with all the CaCO3 in a sample of egg shell, calculate the
(1) mass of CaCO3 in the
egg
shells
(11) volume of CO2 evolved at s. t.p The equation for the reaction is
CaCO3 + 2HC1 CaCl2 + H2O + CO2 [H=10= 16. Ca =40]​

How manyatoms of mercury are in 1.4214e+1 ml sample

Choose all the answers that apply. ionic compounds dissolve easily in water do not dissolve in water have low melting points have high melting points conduct electricity when melted

How is electrolysis most commonly used to produce an energy source? a - splitting water molecules produces oxygen, which organisms breathe to fuel their bodies. b - splitting water molecules produces hydrogen gas, which is used to power machines through hydrogen fuel cells. c - splitting carbon dioxide molecules produces coal, a form of carbon that can be burned to produce heat. d - splitting carbon dioxide molecules produces natural gas, which can be burned to generate electricity in power plants.