A battery is constructed based on the oxidation of magnesium and the reduction of cu2+. the initial concentrations of mg2+ and cu2+ are 1.6×10−4 m and 1.35 m , respectively, in 1.0-liter half-cells. what is the voltage of the battery after delivering 4.26 a for 5.49 h ?

2.83V

Explanation:

Where's M= ZIt

M = mass concentration of battery

I = current

T = time

Z = constant

what is the volume occupied by 40 grams of argon gas (ar) at standard conditions? what volume, in liters, is occupied by 1.5 x 1023 

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.