Which of the following is an example of a double replacement reaction?
(a)3fe + 2o2 fe3o4
(b) bacl2 + k2co3 baco3 + 2kcl
(c) nico3 nio + co2
(d) cl2 + 2nabr 2nacl + br2

Count the number of each type of atom in the equation below, and then balance the equation. write in the numbers of atoms and coefficients. add a 1 if there should be no coefficient. cs2(l) + o2(g) → co2(g) + so2(g) c [ ] s [ ] o > c [ ] s [ ] o [ ] cs2(l) + [ ] o2(g) > [ ] co2(g) + [ ] so2(g)

If maltose undergoes hydrolysis what subunits does it results to?

Polar bears give birth and hunt on sea ice. which of the following would polar bears survive during the melting of arctic ice? growing another layer of fur during summer migrate inland to search for different food sources staying put until the ice refreezes sticking to the usual diet of seals