1. what is isomorphous substitution? 2. clay surfaces how many moles of calcium are required in the interlayer spacing of the following montmorillonite (1 mole) to ensure a net-zero charge (ie what is x)? montmorillonite: cax (siral os) (alo osmgs75fe0.2)。20(oh) 4 assume the valence of iron is +2 (i. e fe2) to answer this question think about i) what a mole is (1st year foundations 2 subject) and how the moles are represented in the montmorillonite equation ii) the valence of each cation - ca, si, al, mg, fe, o and oh i) the charge contributed by each element in the montmorillonite (multiply the number of moles x the charge) the total charge of the montmorillonite excluding the ca. the charge of the ca and therefore how many moles are required to balance iv) above. iv) v)

idk

explanation:

it is very hard for the climatologists to precisely predict how will the global temperatures be changing so there's lots of models, some of which differ significantly, this is due to multiple factors, and probably the most important is the human activity.

humans have been a key factor in climate change around the globe since the start of the industrial revolution, and in the past few decades the consequences are becoming more obvious. there's lots of emission of pollutants in the atmosphere as well as changing the environment on the surface itself, so it's really hard to predict how will that go in the future because there's some countries that are reducing the damage and are going towards green energy, while others are stubbornly continuing with pollution and damages to the environment.