A)A beaker containing 50 cm3 of 0.2 mole/dm3 sodium thiosulfate was placed on the top of a black cross. Then 5 cm3 of 2 moles/dm3 hydrochloric acid was added. And the clock started which(Na2S2O3 or HCl) is limiting reagent? The chemical equation for the reaction is given below. (3)
Na2S2O3 + 2 HCl --> 2NaCl + SO2 + S + H2O
b) Write about solid, liquid and gas using property movement of particles

Which of the following statements is true? question 4 options: nuclear decay rates vary with the conditions of the reaction, but chemical reaction rates do not. chemical reaction rates vary with the conditions of the reaction, but nuclear decay rates do not. neither chemical reaction rates nor nuclear decay rates vary with the conditions of the reaction. both chemical reaction rates and nuclear decay rates vary with the conditions of the reaction.

If 200.0g of copper(ll) sulfate react with an excess of zinc metal, what is the theoretical yield of copper

Explain how the integumentary system plays a crucial role in the ability to maintain homeoestasis