In this experiment, you will use a natural indicator to indirectly determine the H+ concentration of some common household solutions to determine a physical characteristic of the solution. In the space below, write a scientific question that you will answer by doing this experiment. Pls help put in a simple to understand way

The covalent compound acetylene, which is the fuel of the oxyacetylene torch used by welders, has the molecular formula c2h2. the covalent compound benzene, a commercial solvent, has the molecular formula c6h6 each of these covalent compounds contains carbon and hydrogen atoms in a one-to-one ratio. would it be correct to write the chemical formulas of each as ch? explain.

Convert the temperature of dry ice, –77 ∞c, into degrees fahrenheit and kelvin.

At a certain temperature the rate of this reaction is first order in hi with a rate constant of : 0.0632s2hig=h2g+i2g suppose a vessel contains hi at a concentration of 1.28m . calculate how long it takes for the concentration of hi to decrease to 17.0% of its initial value. you may assume no other reaction is important. round your answer to 2 significant digits.