How many grams of oxygen are needed to react with excess methane in the following reaction, in order to produce 325 kJ of energy? CH4 + 2 O2 → CO2 + H2O H = -890.4 kJ

Needthe meter is the standard unit for: 1) height 2) length 3) weight 4) mass

Select each correct answer. more than one answer may be correct. which of the following is a characteristic of unicellular organisms? they can possess tissues and organs. all of their functions are performed by a single cell. they are usually microscopic. each of their cells is specialized to perform a specific function.

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?