What is the total number of molecules represented by the following equation? 2c4h10(g) + 13o2(g) 8co2(g) + 10h2o(g)?
a 18
b 4
c 15
d 33

Which of the following pressures is equal to 760 mm hg? 2.0 atm 101.3 pa 101,300 kpa 101,300 pa

Which real-world scenarios below represent physical and chemical changes? -running a car -exploding fireworks -mixing water and powdered drink mix -combining oil and vinegar to make salad dressing -taking aspirin for a headache -diluting bleach with water-digesting dinner-spreading peanut butter on bread

Express the following number in scientific notation. 0.026890 =