Calculate the speed of a car that travels 50 km (kilometers) in 30 min (minutes). Question 1 options: 1.6 km/min (kilometers per minute) 1.6 miles/hour 1,500 km/min (kilometers per minute) 1,500 miles/hour

Agas in a balloon at constant pressure has a volume of 160 ml at -125*c. what is its volume at 29.0*c?

What is the independent variable in this investigation? mass volume sample number substance density

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.