Find the mass of na2co3 needed to give 22.4dm³ of ca2 stp in this reaction
na2co3+> 2nacl+co2+h2o
(na=23, o=16, c=12,molar volume or a gas at stp= 22.4dm³

The declining axolotl population in mexico city is an example of in overcrowded cities. a. the surpassing of support capacity b. changes to natural environments and native species c. the lack of safe homes and tenured spaces d. the effects of a growing urban heat island

When volcanoes erupt, magma (hot, molten rock) rises toward the surface of the earth. as magma cools, solid rock forms. this rock contains substances from the interior of the earth. which of the following natural resources is likely to be plentiful near subduction zones where volcanic activity has occurred in the past?

Which of the following is an example of relocation diffusion