Round each of the following to the indicated number of sig figs. 1. 45,500 → 2 sf
2. 126,500 ➡️3 sf
3. .00045567 4 sf
4. 4.2745 x 1010 →4 sf
5. 199,900 → 2 sf➡️

If one fission reaction of a uranium-235 atom produced two neutrons, how many neutrons would be released if the chain reaction occurred three more times?

Insoluble sulfide compounds are generally black in color. which of the following combinations could yield a black precipitate? check all that apply. na2s(aq)+kcl(aq) li2s(aq)+pb(no3)2(aq) pb(clo3)2(aq)+nano3(aq) agno3(aq)+kcl(aq) k2s(aq)+sn(no3)4(aq)

One similarity and one difference between an element and a mixture of elements