Please helppp!! chemistry strochiometry (Essay Worth 8 points) (05.07 HC)

In the following reaction, oxygen is the excess reactant.

SiCl4 + O2 → SiO2 + Cl2

The table shows an experimental record for the above reaction.

Experimental Record

Trial: Starting Amount of SiCl4:Starting Amount of O2: Actual Yield of SiO2:

1 100 g 100 g 32.96 g

2 75 g 50 g 25.2 g

Calculate the percentage yield for SiO2 for Trial 1. Also, determine the leftover reactant for the trial. Show your work.

Based on the percentage yield in Trial 2, explain what ratio of reactants is more efficient for the given reaction.

As changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit

Upon decomposition, one sample of magnesium fluoride produced 1.65 kg of magnesium and 2.56 kg of fluorine. a second sample produced 1.32 kg of magnesium. part a how much fluorine (in grams) did the second sample produce?

Alice did an experiment to find the relationship between the angle at which a ray of light strikes a mirror and the angle at which the mirror reflects the light. she placed a ray box in front of a mirror. she changed the angle at which the light from the ray box struck the mirror and noted the corresponding angle at which the mirror reflected the light. which of the following is the dependent variable in this experiment? the mirror used to reflect the light the ray box used as the source of light angle at which the light from the ray box strikes the mirror angle at which the mirror reflects the light from the ray box