6 Gold has a density of 19.3 g/cm. A certain cube of gold measures 2.0 cm on each edge. a. What is the volume of the cube in cm? 6. What is the mass of the cube in grams? Work: Part A Calculated Answers # sig figs Final Answer with Units: Part B: Calculated Answer. # sig figs Final Answer with units:

H tricky one let me think and get back to u

Ans() ; the burning of them contributes to global warmingthey come from decayed organic material;

Reaction involved in present system is :   c12h22o11 + h2o → 2 c6h12o6the reaction system is obeying following rate law:   rate = k[c12h22o11]thus, it is a first order reaction.now, for 1st order reactionrate constant (k) =  given: initial conc. = 3.0 g, final conc. = 2.7 g, t = 2.5 h∴rate constant (k) =  ∴ k = 0.04215 h-1now, for 1st order reaction, half life = 0.693/k = 0.693/0.04215 = 16.4 hthus correct answer is option b