Aregion of a thinly spread gas and dust is a core, interstellar medium, or supernova
inside a nebula are regions where gravity pulls togetherness gas and dust into a ball protostar, nebula, or a main sequence.

an extreme hot ball of gas with hydrogen fusing into helium is a planet star or balance

When a lead acid car battery is recharged by the alternator, it acts essentially as an electrolytic cell in which solid lead(ii) sulfate is reduced to lead at the cathode and oxidized to solid lead(ii) oxide at the anode. suppose a current of is fed into a car battery for seconds. calculate the mass of lead deposited on the cathode of the battery.