The combining of hydrogen and oxygen gas into liquid water is an example of what kind of change?

A. Phase

B. Chemical

C. Physical

What is the ionic form of this unbalanced equation? mno2 + hno2 → mn (no3) 2 + h2o?

Utilizing dimensional analysis find the number of inches in a kilometer given that 1 inch equals 2.54 cm

2.50 mol of gas occupy a volume of 112 L at a pressure of 1.00 atm. What is the kelvin temperature of the gas? 173 K 273 K 373 K 546 K

A depositional also feature that forms where a stream enters a lake or an ocean is a

Water can be a solid liquid, or gas in Earth's water cycle. Identify two processes in the water cycle where water changes from one state to another state and then back to the original state.

What product would you obtain if you evaporate the water from the naoh layer prior to acidifying the layer?

Which of the following is NOT a true state- ment about gases?

Problem 5.32 - enhanced - with feedback the rolling resistance for steel on steel is quite low; the coefficient of rolling friction is typically μr=0.002. suppose a 180,000 kg locomotive is rolling at 22 m/s on level rails.

What concentration of so32 - is in equilibrium with ag2so3 (s) and 9.50 * 10-3 m ag? the ksp of ag2so3 can be found here?

Groups or families in the periodic table have what in common