global warming is caused by an increase in the level of carbon dixode gas in the atmosphere. How has this affected the world's oceans?

How many moles are in 250 grams of tungsten (w)? * 4.4x10^23 moles 4.2x10^23 moles 0.7 moles 1.4 moles

What shape would a molecule with two bound groups and two lone pairs have?

Which of these is not an example of chemical weathering? a. iron-rich mineral rusting b. feldspar turning into clay c. limestone reacting with acid d. granite breaking up into sand