12. A year on any planet is the number of days it takes for the planet to complete one orbit around the Sun. It takes 365 days for Earth. It takes 365 days for the
Earth to revolve around the Sun, so on Earth a year is 365 days. How old are
you in Mars-years?

Step 1: Calculate how many Earth days old you are.

Step 2: Divide that number the number of days it takes Mars to complete an orbit.

Step 3: Explain your answer

For the reaction shown, calculate how many moles of no2 form when each of the following completely reacts. 2n2o5(g)→4no2(g)+o2(g) part a 1.0 mol n2o5 express your answer using two significant figures. nothing mol m o l request answer part b 5.4 mol n2o5 express your answer using two significant figures.

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

Asample of sea water contains 6.28g of sodium chloride per litre of solution. how many milligrams of sodium chloride would be contained in 15.0ml of this solution?