The heat content of a system is its

When the following equation is balanced using the smallest possible integers, what is the coefficent of oxygen gas? c7h16o(g) + o2(g) → co2(g) + h2o(g) -1 -5 -8 -16 -21

Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver