Coloca-se 500 g de ferro ( 0,1cal g º C ) a 42º C num recipiente de capacidade térmica desprezível, contendo 500 g térmico. [ 22º C ] de água ( c  1cal g º C ). Determine a temperatura final do equilíbrio

This is what i found on google “lithium and sulfide can react together to form litium sulfide(li2s). when lithium sulfide hydrolyses(breaks down) in air, it releases hydrogen sulfide which is characteristized by a rotten egg odor.” i hope this you for what your looking for

The boat's velocity relative to the riverbank can be resolved into two components. the component going north is 2.7 m/s and the component going west is 1.2 m/s.we add these two vectors and then find the magnitude of the resultant to get the speed.the magnitude of the resultant vector from adding can be obtained by the pythagorean theorem.    to two significant figures, the boat's speed relative to the riverbank is 3.0 m/s.

B? i think so but hope that's right and answers your question