A 100% platinum model of an Airbus 380 weighing 73.52 grams was given to a pilot as a gift for his 10th anniversary. His son was studying chemistry and determined that it was 1.35 moles of
platinum. Did he correctly calculate the number of moles?

I need evidence on why this is true please help I need this for today

Johnny rode his bike 4 blicks down the street to his friend's house once he got to his friend house and realized he could not cone out to play he turned aroubd and went back home.what is displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Diabetes is often suspected when glucose shows up in urine tests. use the model to explain how glucose could be present in urine. why do you think this symptom is especially concerning for young people?

The distant ancestors of tigers may have had bodies without stripes. use the theory of natural selection to explain how tigers may have evolved to have stripes.