Please i need the answer we are to submit soon

Calculate the number of moles of calcium chloride CaCI2, that can be obtained from 75g of limestone, CaCO3, in the presence of excess hydrogen chloride.

Equation of reaction

CaCo3(s)+2HCICaCI2(aq)+H2O+CO2(g )

From the equation, 1 mole CaCO3, yields 1 mole CaCI2.

Number of moles of CaCO3 reacted= reacting mass/molar mass

=75g/100g mol-1=0.75mol

0.75 mole CaCO3 will yield 0.75 mole of CaCI2

ASSIGNMENT

1. 30cm2 of a gas, the empirical formula of whivh is CH3 diffuses through a porous pot in 45.2 seconds. 30cm3 of hydrogen does so in 11.7 seconds under the same conditions. What is the molecular formula of the gas?

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation:

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.

i have no clue hope you find the answer