the formula sio2 represents:
a) calcite
b) quartz
c) halite
d) hematite
so ^_^

Embryos of different species look very similar, which shows that the organisms share a ancestor.

Asa choose the correct set of reaction coefficients to properly balance the following chemical equation according to the law of conservation of mass: __s8 + __o2 ==> __so2 1, 1, 8 1, 8, 1 1, 8, 8 8, 1, 1

At 450 mm hg a gas has a volume of 760 l, what is its volume at standard pressure