Given the balanced equation representing a reaction:
2co(g) + o2(g)< ==> 2co2(g)
what is the mole ratio of co(g) to co2(g) in this reaction?
(1) 1: 1 (3) 2: 1
(2) 1: 2 (4) 3: 2

How does the principle of electromagnetism explain the interaction between earth’s magnetic field and the solar wind?

Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth

The lattice enthalpy (formation of ionic solid from ions in the gas phase) for agcl(s) is -916 kj/mol and the hydration enthalpy (dissolution of gaseous ions into water) is -850 kj/mol. how much heat (in joules) is involved in forming 1l of saturated agcl solution (1.8 × 10-4 g / 100 ml water) by dissolving agcl(s)? assume solution volume does not change much upon dissolution. the equations are given below. ag+(g) + cl−(g) æ agcl(s)