John rides his motorcycle with a constant speed of 52 miles per hour. how long will he take to travel a distance of 156 miles?

Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.

Structure of the atoms: discovery of the nucleus in 1909i need answering all of these questions

Which is an example of a highly unstable isotope that is often used in fission reactions?