How many grams in 4.53 moles of MgBr2

Part of molten rock at mid-ocean ridges

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line

How does climate change cause the ocean's thermohaline current to slow down?