A steak that is well cooked is a chemical change or physical change?

In the azimuth-altitude coordinate system, what is true about the location of Polaris? A) It's always directly above your head. B) Its altitude depends only on the azimuth. C) Its altitude depends on the observer's latitude.

Summarize the difference between a legal law and a scientific law

Balance the equation? c4h10 (g) + ? o2 (g) →? co2 (g) + ? h2o (g), using the smallest possible integers. what is the coefficient of c4h10?

When burning methane gas, which outcome best demonstrates the law of conservation of mass? A. CH4 → CO2 + H20 B. CH4 + O2→ CO2 + 2H20 C. CH4 + O2 → 2CO2 + 2H20 D. CH4 + 2O2 → CO2 + 2H20

What happens to the outlet temperatures of the hot and cold fluid when the both the hot fluid is at a maximum and the cold fluid is at a minimum flowrate?

Which energy change occurs during boiling? A. Some heat energy of the substance is lost. B. Heat energy of the substance remains the same. C. Most heat energy of the substance is lost. D. Heat energy is absorbed by the substance.

How many liters of phosphine are formed when 0.42 L of hydrogen react with phosphorus

Which sample of matter has the greatest distance between molecules at STP? A) N2 (g) B) NH3 (aq) C) C6H14 () D) C6H12O6 (s)

What happens is that passes through the Catapillar's in the small intestine

One mole of a monatomic ideal gas is subjected to the following sequence of steps: a. Starting at 300 K and 10 atm, the gas expands freely into a vacuum to triple its volume. b. The gas is next heated reversibly to 400 K at constant volume. c.