From the balanced reaction: B2H6 + 3O2 ⇒ 2HBO2 + 2H2O

How many moles of O2 will be needed to burn 36.1 g of B2H6?

The mass of O₂ that will be needed to burn 36.1 g B₂H₆ is 125.29 g.

the child will have heterozygous dominant chromosomes as characters of his father are dominant over the characters of his mother.

the child is heterozygous

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )