Asilver necklace is made from a pure sample of silver that is free of i'm purities. which term or terms could be used to describe this sample of silver ?

What does x represent in the formula for the compound xcl4?

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone,due to its high light availability and warm water temperature

Find the number of grams of hcl needed to react completely with .50 moles of magnesium.